B-box-type 2 zinc finger found in tripartite motif-containing protein 9 (TRIM9) and similar proteins; TRIM9 (the human ortholog of rat Spring), also termed RING finger protein 91 (RNF91), is a brain-specific E3 ubiquitin-protein ligase collaborating with an E2 ubiquitin conjugating enzyme UBCH5b. TRIM9 plays an important role in the regulation of neuronal functions and participates in the neurodegenerative disorders through its ligase activity. It interacts with the WD repeat region of beta-transducer repeat-containing protein (beta-TCP) through its N-terminal degron motif (DSGXXS) depending on the phosphorylation status, and thus negatively regulate nuclear factor-kappaB (NF-kappaB) activation in the NF-kappaB pro-inflammatory signaling pathway. Moreover, TRIM9 acts as a critical catalytic link between Netrin-1 and exocytosis soluble NSF attachment receptor protein (SNARE) machinery in murine cortical neurons. It promotes SNARE-mediated vesicle fusion and axon branching in a Netrin-dependent manner. TRIM9 belongs to the C-I subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, the fibronectin type III domain and the SPRY/B30.2 domain positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 1913184748 223 PRKVSTCTDHELENHSMYCVQCKMPVCYQCLEEGKHSSHEVKALGAMWK 271
Cdd:cd19826     1 PRKISTCTDHELENHSMYCVQCKMPVCYQCLEEGKHSSHEVKALGAMWK 49

RING finger (Really Interesting New Gene) domain and U-box domain superfamily; The RING finger is a specialized type of Zn-finger of 40 to 60 residues that binds two atoms of zinc. It is defined by the "cross-brace" motif that chelates zinc atoms by eight amino acid residues, typically Cys or His, arranged in a characteristic spacing. Canonical RING motifs have been categorized into two major subclasses, RING-HC (C3HC4-type) and RING-H2 (C3H2C3-type), according to their Cys/His content. There are also many variants of RING fingers: some have different Cys/His patterns while some lack a single Cys or His residue at typical Zn ligand positions (the fourth or eighth zinc ligand is prevalently exchanged for an Asp, which can indeed chelate Zn in a RING finger as well). C4C4-, C3HC3D-, C2H2C4-, and C3HC5-type RING fingers are closely related to RING-HC fingers. In contrast, C4HC3- (RING-CH alias RINGv), C3H3C2-, C3H2C2D-, C3DHC3-, and C4HC2H-type RING fingers are more closely related to RING-H2 fingers. However, not all RING finger-containing proteins display regular RING finger features, and the RING finger family has turned out to be multifarious. The degenerate RING fingers of the Siz/PIAS RING (SP-RING) family proteins and sporulation protein RMD5, are characterized by lacking the second, fifth, and sixth Zn2+ ion-coordinating residues. They bind only one Zn2+ ion. On the other hand, the RING fingers of the human APC11 and RBX1 proteins can bind a third Zn atom since they harbor four additional Zn ligands. U-box is a modified form of the RING finger domain that lacks metal chelating Cys and His residues. It resembles the cross-brace RING structure consisting of three beta-sheets and a single alpha-helix, which would be stabilized by salt bridges instead of chelated metal ions. U-box proteins are widely distributed among eukaryotic organisms and show a higher prevalence in plants than in other organisms. RING finger/U-box-containing proteins are a group of diverse proteins with a variety of cellular functions, including oncogenesis, development, viral replication, signal transduction, the cell cycle and apoptosis. Many of them are ubiquitin-protein ligases (E3s) that serve as scaffolds for binding to ubiquitin-conjugating enzymes (E2s, also referred to as ubiquitin carrier proteins or UBCs) in close proximity to substrate proteins, which enable efficient transfer of ubiquitin from E2 to the substrates.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*
gi 1913184748   5 EEELKCPVCGSFYREPIILPCSHNLCQACARNILVQTPESESPQS 49
Cdd:cd16755     1 EEELKCPVCGSFYREPIILPCSHNLCLACARNILVQTPEAESPQS 45

coiled-coil (CC) domain of Drosophila brain tumor (brat) and similar proteins; This family contains the coiled-coil (CC) region of Drosophila brain tumor (Brat), a translational repressor that belongs to the tripartite motif (TRIM) protein superfamily. TRIM proteins play important roles in various cellular processes and are involved in many diseases which consists of two B-box domains and a coiled-coil (CC) domain at the N-terminal region, and an NHL domain at the C-terminus. Brat localizes at the basal cortex during asymmetric division of Drosophila neuroblasts by directly interacting with the scaffolding protein Miranda (Mira), which it does through the CC-NHL domain tandem, indicating that the function of the Brat CC domain is to assemble Brat-NHL in dimeric form which is necessary for Mira binding. Brat CC forms an elongated antiparallel dimer similar to its other TRIM protein counterparts, but the overall length of Brat CC dimer is shorter than the TRIMs.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1913184748  271 KLHKVVRDQISHCTVKLRQTTGLMEYCLEVIKENDPSGFLQISDALIRRVHLTEDQ 326
Cdd:smart00502  72 NKLKVLEQQLESLTQKQEKLSHAINFTEEALNSGDPTELLLSKKLIIERLQNLLKQ 127

B-box-type 2 zinc finger found in tripartite motif-containing protein 9 (TRIM9) and similar proteins; TRIM9 (the human ortholog of rat Spring), also termed RING finger protein 91 (RNF91), is a brain-specific E3 ubiquitin-protein ligase collaborating with an E2 ubiquitin conjugating enzyme UBCH5b. TRIM9 plays an important role in the regulation of neuronal functions and participates in the neurodegenerative disorders through its ligase activity. It interacts with the WD repeat region of beta-transducer repeat-containing protein (beta-TCP) through its N-terminal degron motif (DSGXXS) depending on the phosphorylation status, and thus negatively regulate nuclear factor-kappaB (NF-kappaB) activation in the NF-kappaB pro-inflammatory signaling pathway. Moreover, TRIM9 acts as a critical catalytic link between Netrin-1 and exocytosis soluble NSF attachment receptor protein (SNARE) machinery in murine cortical neurons. It promotes SNARE-mediated vesicle fusion and axon branching in a Netrin-dependent manner. TRIM9 belongs to the C-I subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, the fibronectin type III domain and the SPRY/B30.2 domain positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 1913184748 223 PRKVSTCTDHELENHSMYCVQCKMPVCYQCLEEGKHSSHEVKALGAMWK 271
Cdd:cd19826     1 PRKISTCTDHELENHSMYCVQCKMPVCYQCLEEGKHSSHEVKALGAMWK 49

RING finger, HC subclass, found in tripartite motif-containing protein 9 (TRIM9) and similar proteins; TRIM9, human ortholog of rat Spring, also known as RING finger protein 91 (RNF91), is a brain-specific E3 ubiquitin-protein ligase collaborating with an E2 ubiquitin conjugating enzyme UBCH5b. TRIM9 plays an important role in the regulation of neuronal functions and participates in the neurodegenerative disorders through its ligase activity. It interacts with the WD repeat region of beta-transducin repeat-containing protein (beta-TrCP) through its N-terminal degron motif depending on the phosphorylation status, and thus negatively regulates nuclear factor-kappaB (NF-kappaB) activation in the NF-kappaB pro-inflammatory signaling pathway. Moreover, TRIM9 acts as a critical catalytic link between Netrin-1 and the exocytic soluble NSF attachment receptor protein (SNARE) machinery in murine cortical neurons. It promotes SNARE-mediated vesicle fusion and axon branching in a Netrin-dependent manner. TRIM9 belongs to the C-I subclass of the TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, a fibronectin type III (FN3) domain, and a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*
gi 1913184748   5 EEELKCPVCGSFYREPIILPCSHNLCQACARNILVQTPESESPQS 49
Cdd:cd16755     1 EEELKCPVCGSFYREPIILPCSHNLCLACARNILVQTPEAESPQS 45

SPRY domain; SPRY Domain is named from SPla and the RYanodine Receptor and it is found in many eukaryotic proteins with a wide range of functions. It is a protein-interaction module involved in many important signalling pathways like RNA processing, regulation of histone H3 methylation, innate immunity or embryonic development. It can be divided into 11 subfamilies based on amino acid sequence similarity or the presence of additional protein domains. The greater SPRY family is divided into the SPRY/B30.2 (which contains a PRY extension at the N-terminal) and SPRY-only sub-families which are preceded by a subdomain that is structurally similar to the PRY region. SPRY/B30.2 structures revealed a bent beta-sandwich fold comprised of two beta-sheets. Distant homologs are domains in butyrophilin/ marenostrin/pyrin.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 505 IHYWELTVDRYDNHpDPAFGVARMDVM--KDVMLGKDDKAWAI----------------TEGGITKGATIGVLLDLNRKN 566
Cdd:pfam00622   1 RHYFEVEIFGQDGG-GWRVGWATKSVPrkGERFLGDESGSWGYdgwtgkkywastspltGLPLFEPGDVIGCFLDYEAGT 79

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|...
gi 1913184748 567 LTFFINDEQQGpIAFDNV--EGLFFPAVSLNRNVQVTLHTGLP 607
Cdd:pfam00622  80 ISFTKNGKSLG-YAFRDVpfAGPLFPAVSLGAGEGLKFNFGLR 121

B-Box C-terminal domain; Coiled coil region C-terminal to (some) B-Box domains

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1913184748  271 KLHKVVRDQISHCTVKLRQTTGLMEYCLEVIKENDPSGFLQISDALIRRVHLTEDQ 326
Cdd:smart00502  72 NKLKVLEQQLESLTQKQEKLSHAINFTEEALNSGDPTELLLSKKLIIERLQNLLKQ 127

Fibronectin type III domain;

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1913184748 382 NNSATLSWKQPPLSTVPADGYILEL-DDGNGGQFREVYVGK-ETMCTVDGLHFNSTYNARVKAFNKTGVSPYS 452
Cdd:pfam00041  13 STSLTVSWTPPPDGNGPITGYEVEYrPKNSGEPWNEITVPGtTTSVTLTGLKPGTEYEVRVQAVNGGGEGPPS 85

B-Box-type zinc finger;

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|...
gi 1913184748  224 RKVSTCTDHELENHSMYCVQCKMPVCYQClEEGKHSSHEVKAL 266
Cdd:smart00336   1 QRAPKCDSHGDEPAEFFCEECGALLCRTC-DEAEHRGHTVVLL 42

B-Box-type zinc finger;

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1913184748  163 AAALKCQLCEKAPkeATVMCEQCDVFYCDPCRLRCHpprgplAKHRLVP 211
Cdd:smart00336   1 QRAPKCDSHGDEP--AEFFCEECGALLCRTCDEAEH------RGHTVVL 41

DNA repair protein rad18; All proteins in this family for which functions are known are involved in nucleotide excision repair.This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]

                          10        20        30
                  ....*....|....*....|....*....|....*....
gi 1913184748   4 MEEELKCPVCGSFYREPIILPCSHNLCQACARNILVQTP 42
Cdd:TIGR00599  23 LDTSLRCHICKDFFDVPVLTSCSHTFCSLCIRRCLSNQP 61

Ring finger; E3 ubiquitin-protein ligase activity is intrinsic to the RING domain of c-Cbl and is likely to be a general function of this domain; Various RING fingers exhibit binding activity towards E2 ubiquitin-conjugating enzymes (Ubc' s)

                           10        20        30
                   ....*....|....*....|....*....|
gi 1913184748   10 CPVC-GSFYREPIILPCSHNLCQACARNIL 38
Cdd:smart00184   1 CPIClEEYLKDPVILPCGHTFCRSCIRKWL 30

PRY/SPRY domain in tripartite motif-containing proteins 1, 9, 18, 36, 46, 67,76 (TRIM1, TRIM9, TRIM18, TRIM36, TRIM46, TRIM67, TRIM76); This domain, consisting of the distinct N-terminal PRY subdomain followed by the SPRY subdomain, is found at the C-terminus of several Class I TRIM proteins, including TRIM1, TRIM9, TRIM18, TRIM36, TRIM46, TRIM67 and TRIM76. TRIM1 (also known as MID2) and its close homolog, TRIM18 (also known as MID1), both contain a B30.2-like domain at their C-terminus and a single fibronectin type III (FN3) motif between it and their N-terminal RBCC domain. Their coiled-coil motifs mediate both homo- and heterodimerization, a prerequisite for association of the rapamycin-sensitive PP2A regulatory subunit Alpha 4 with microtubules. Mutations in TRIM18 have shown to cause Opitz syndrome, a disorder causing congenital anomalies such as cleft lip and palate as well as heart defects. TRIM9 is expressed mainly in the cerebral cortex, and functions as an E3 ubiquitin ligase. Its immunoreactivity is severely decreased in affected brain areas in Parkinson's disease and dementia with Lewy bodies, possibly playing an important role in the regulation of neuronal function and participating in pathological process of Lewy body disease through its ligase. TRIM36 interacts with centromere protein-H, one of the kinetochore proteins and possibly associates with chromosome segregation; an excess of TRIM36 may cause chromosomal instability. TRIM46 has not yet been characterized. TRIM67 negatively regulates Ras activity via degradation of 80K-H, leading to neural differentiation, including neuritogenesis. TRIM76 (also known as cardiomyopathy-associated protein 5 or CMYA5) is a muscle-specific member of the TRIM superfamily, but lacks the RING domain. It is possibly involved in protein kinase A signaling as well as vesicular trafficking. It has also been implicated in Duchenne muscular dystrophy and cardiac disease. The PRY-SPRY domain in these TRIM families is suggested to serve as the target binding site.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 465 FAFDPGSAHSDIILSNDNLTVTCSSY--------------DDRVVLGKTGFSKGIHYWELTVDRYdnhPDPAFGVARMDV 530
Cdd:cd13734     1 FKLDPKTAHRKLRLSNDNLTVEYDPEgskdqaavlprrftGSPAVLGDVAISSGRHYWEVSVSRS---TSYRVGVAYKSA 77

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 531 MKDVMLGKDDKAWAITEGGIT----------------KGATIGVLLDLNRKNLTFFINDEQQGPIAFDNV-EGLFFPAVS 593
Cdd:cd13734    78 PRDEDLGKNSTSWCLSRDNNRytarhdgkvvdlrvtgHPARIGVLLDYDNGTLSFYDAESKQHLYTFHVDfEGPVCPAFA 157

                         170
                  ....*....|
gi 1913184748 594 LNrNVQVTLH 603
Cdd:cd13734   158 VW-NGSLTLH 166

B-box-type 1 zinc finger found in tripartite motif-containing protein 9 (TRIM9) and similar proteins; TRIM9 (the human ortholog of rat Spring), also termed RING finger protein 91 (RNF91), is a brain-specific E3 ubiquitin-protein ligase collaborating with an E2 ubiquitin conjugating enzyme UBCH5b. TRIM9 plays an important role in the regulation of neuronal functions and participates in neurodegenerative disorders through its ligase activity. It interacts with the WD repeat region of beta-transducer repeat-containing protein (beta-TCP) through its N-terminal degron motif depending on the phosphorylation status, and thus negatively regulate nuclear factor-kappaB (NF-kappaB) activation in the NF-kappaB pro-inflammatory signaling pathway. Moreover, TRIM9 acts as a critical catalytic link between Netrin-1 and exocytosis soluble NSF attachment receptor protein (SNARE) machinery in murine cortical neurons. It promotes SNARE-mediated vesicle fusion and axon branching in a Netrin-dependent manner. TRIM9 belongs to the C-I subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, the fibronectin type III domain and the SPRY/B30.2 domain positioned C-terminal to the RBCC domain. The type 1 B-box (Bbox1) zinc finger is characterized by a C6H2 zinc-binding consensus motif.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 1913184748 166 LKCQLCEKAPKEATVMCEQCDVFYCDPCRLRCHPPRGPLAKHRLVPP 212
Cdd:cd19843     1 LKCQLCEKSPKEATVMCEQCDVFYCDPCRLRCHPPRGPLAKHRLVPP 47

B-box-type 2 zinc finger found in tripartite motif-containing protein 67 (TRIM67) and similar proteins; TRIM67, also termed TRIM9-like protein (TNL), is a protein selectively expressed in the cerebellum. It interacts with PRG-1, an important molecule in the control of hippocampal excitability dependent on presynaptic LPA2 receptor signaling, and 80K-H (also known as glucosidase II beta), a protein kinase C substrate. It negatively regulates Ras signaling in cell proliferation via degradation of 80K-H, leading to neural differentiation including neuritogenesis. TRIM67 belongs to the C-I subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, the fibronectin type III domain and the SPRY/B30.2 domain positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....
gi 1913184748 228 TCTDHELENHSMYCVQCKMPVCYQCLEEGKHSSHEVKALGAMWK 271
Cdd:cd19827     2 TCAEHELENYSMYCASCRTPVCYQCLEEGKHAKHEVKALGAMWK 45

RING finger, HC subclass, found in tripartite motif-containing protein 67 (TRIM67) and similar proteins; TRIM67, also known as TRIM9-like protein (TNL), is selectively expressed in the cerebellum. It interacts with PRG-1, an important molecule in the control of hippocampal excitability dependent on presynaptic LPA2 receptor signaling, and 80K-H (also known as glucosidase II beta), a protein kinase C substrate. It negatively regulates Ras signaling in cell proliferation via degradation of 80K-H, leading to neural differentiation including neuritogenesis. TRIM67 belongs to the C-I subclass of the TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, a fibronectin type III (FN3) domain, and a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 1913184748   5 EEELKCPVCGSFYREPIILPCSHNLCQACARNILVQTPESES----------PQSHR 51
Cdd:cd16758     1 EEELKCPVCGSLFREPIILPCSHNVCLPCARTIAVQTPESEQhlphsssitcPQCHR 57

RING finger, HC subclass, found in tripartite motif-containing proteins TRIM9, TRIM67, and similar proteins; Tripartite motif-containing proteins TRIM9 and TRIM67 belong to the C-I subclass of the TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, consisting of three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, a fibronectin type III (FN3) domain, and a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain. TRIM9 (the human ortholog of rat Spring), also known as RING finger protein 91 (RNF91), is a brain-specific E3 ubiquitin-protein ligase collaborating with an E2 ubiquitin conjugating enzyme UBCH5b. TRIM9 plays an important role in the regulation of neuronal functions and participates in neurodegenerative disorders through its ligase activity. TRIM67, also known as TRIM9-like protein (TNL), is a protein selectively expressed in the cerebellum. It interacts with PRG-1, an important molecule in the control of hippocampal excitability dependent on presynaptic LPA2 receptor signaling, and 80K-H, also known as glucosidase II beta, a protein kinase C substrate.

                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 1913184748   5 EEELKCPVCGSFYREPIILPCSHNLCQACARNILVQTP 42
Cdd:cd16576     1 EEELKCPVCGSLFTEPVILPCSHNLCLGCALNIQLTCP 38

SPRY domain in the suppressor of cytokine signaling 3 (SOCS3) family; The SPRY domain-containing SOCS box protein family (SPSB1-4, also known as SSB-1 to -4) is composed of a central SPRY protein interaction domain and a C-terminal SOCS box. All four SPSB proteins interact with c-Met, the hepatocyte growth factor receptor, but SOCS3 regulates cellular response to a variety of cytokines such as leukemia inhibitory factor (LIF) and interleukin 6. SOCS3, along with SOCS1, are expressed by immune cells and cells of the central nervous system (CNS) and have the potential to impact immune processes within the CNS. In non-small cell lung cancer (NSCLC), SOCS3 is silenced and proline-rich tyrosine kinase 2 (Pyk2) is over-expressed; it has been suggested that SOCS3 could be an effective way to prevent the progression of NSCLC due to its role in regulating Pyk2 expression.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 468 DPGSAHSDIILSNDNLTVT---CSSYDDRVVLGKTGFSKGIHYWELTVDrydnhpDPAFGvarMDVM-----KDV----- 534
Cdd:cd12876     5 DERDKSPAVQLSDNNREVYfhpDYSCGTAAVRGTKPLTNGQHYWEIKMS------SPVYG---TDMMvgvgtKKAdlhay 75

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 535 ------MLGKDDKAW------AITEGGITK---------GATIGVLLDLNRKNLTFFINDEQQGpIAFDNVEGL--FFPA 591
Cdd:cd12876    76 ryefcsLLGEDEESWglsykgLLWHDGQSRpytspfgnqGTIIGVHLDMWRGTLTFYKNGKPLG-VAFTGLNGVkpLYPM 154

                  ..
gi 1913184748 592 VS 593
Cdd:cd12876   155 VS 156

SPRY domain; SPRY domains, first identified in the SP1A kinase of Dictyostelium and rabbit Ryanodine receptor (hence the name), are homologous to B30.2. SPRY domains have been identified in at least 11 protein families, covering a wide range of functions, including regulation of cytokine signaling (SOCS), RNA metabolism (DDX1 and hnRNP), immunity to retroviruses (TRIM5alpha), intracellular calcium release (ryanodine receptors or RyR) and regulatory and developmental processes (HERC1 and Ash2L). B30.2 also contains residues in the N-terminus that form a distinct PRY domain structure; i.e. B30.2 domain consists of PRY and SPRY subdomains. B30.2 domains comprise the C-terminus of three protein families: BTNs (receptor glycoproteins of immunoglobulin superfamily); several TRIM proteins (composed of RING/B-box/coiled-coil or RBCC core); Stonutoxin (secreted poisonous protein of the stonefish Synanceia horrida). TRIM/RBCC proteins are involved in a variety of processes, including apoptosis, cell cycle regulation, cell growth, senescence, viral response, meiosis, cell differentiation, and vesicular transport. Genes belonging to this family are implicated in several human diseases that vary from cancer to rare genetic syndromes. The PRY-SPRY domain in these TRIM families is suggested to serve as the target binding site. While SPRY domains are evolutionarily ancient, B30.2 domains are a more recent adaptation where the SPRY/PRY combination is a possible component of immune defense. Mutations found in the SPRY-containing proteins have shown to cause Mediterranean fever and Opitz syndrome.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 504 GIHYWELTVDRyDNHPDPAFGVARMDV--MKDVMLGKDDKAWAI---------------TEGGITKGATIGVLLDLNRKN 566
Cdd:cd11709     1 GKWYWEVRVDS-GNGGLIQVGWATKSFslDGEGGVGDDEESWGYdgsrlrkghggssgpGGRPWKSGDVVGCLLDLDEGT 79

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 1913184748 567 LTFFINDEQQGpIAFDNV---EGLFFPAVSLNRNVQVTLH 603
Cdd:cd11709    80 LSFSLNGKDLG-VAFTNLflkGGGLYPAVSLGSGQGVTIN 118

SPRY domain in Ash2; This SPRY domain is found at the C-terminus of Ash2 (absent, small, or homeotic discs 2) -like proteins, core components of all mixed-lineage leukemia (MLL) family histone methyltransferases. Ash2 is a member of the trithorax group of transcriptional regulators of the Hox genes. Recent studies show that the SPRY domain of Ash2 mediates the interaction with RbBP5 and has an important role in regulating the methyltransferase activity of MLL complexes. In yeast, Ash2 is involved in histone methylation and is required for the earliest stages of embryogenesis.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 476 IILSNDNLTVTCSS-YddRVVLGKTGFSKGIHYWELTVDRYDNHPDPA--FGVAR----MDV----------MKDVMLGK 538
Cdd:cd12872     1 LKLSEDRLTVTGEKgY--RMARANHGVREGKWYFEVKILEGGGTETGHvrVGWSRreasLQApvgydkysyaIRDKDGSK 78

                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1913184748 539 DDKAWAI--TEGGITKGATIGVLLDLNRknLTFFINDEQQGPiAFDNV--EGLFFPAVSLNRNVQVTLHTGlpvPDFY 612
Cdd:cd12872    79 FHQSRGKpyGEPGFKEGDVIGFLITLPK--IEFFKNGKSQGV-AFEDIygTGGYYPAVSLYKGATVTINFG---PDFK 150

Domain in SPla and the RYanodine Receptor; Domain of unknown function. Distant homologues are domains in butyrophilin/marenostrin/pyrin homologues.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748  503 KGIHYWELTVDrydnhpDP---AFGVARMDV--MKDVMLGKDDKAWAI----------------TEGGITKGATIGVLLD 561
Cdd:smart00449   1 SGRHYFEVEIG------DGghwRVGVATKSVprGYFALLGEDKGSWGYdgdggkkyhnstgpeyGLPLQEPGDVIGCFLD 74

                           90       100       110
                   ....*....|....*....|....*....|....*.
gi 1913184748  562 LNRKNLTFFINDEQQGPIAFDNVE--GLFFPAVSLN 595
Cdd:smart00449  75 LEAGTISFYKNGKYLHGLAFFDVKfsGPLYPAFSLG 110

B-Box C-terminal domain; Coiled coil region C-terminal to (some) B-Box domains

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1913184748  271 KLHKVVRDQISHCTVKLRQTTGLMEYCLEVIKENDPSGFLQISDALIRRVHLTEDQ 326
Cdd:smart00502  72 NKLKVLEQQLESLTQKQEKLSHAINFTEEALNSGDPTELLLSKKLIIERLQNLLKQ 127

RING finger, HC subclass, found in midline-2 (MID2) and similar proteins; MID2, also known as midin-2, midline defect 2, RING finger protein 60 (RNF60), or tripartite motif-containing protein 1 (TRIM1), is a probable E3 ubiquitin-protein ligase and is highly related to MID1 that associates with cytoplasmic microtubules along their length and throughout the cell cycle. Like MID1, MID2 associates with the microtubule network and may at least partially compensate for the loss of MID1. Both MID1 and MID2 interacts with Alpha 4, which is a regulatory subunit of PP2-type phosphatases, such as PP2A, and an integral component of the rapamycin-sensitive signaling pathway. MID2 can also substitute for MID1 to control exocytosis of lytic granules in cytotoxic T cells. Loss-of-function mutations in MID2 lead to the human X-linked intellectual disability (XLID). MID2 belongs to the C-I subclass of the TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxy-terminal subgroup one signature) box, a fibronectin type III (FN3) domain, and a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain. MID2 hetero-dimerizes in vitro with its paralog MID1.

                          10        20        30
                  ....*....|....*....|....*....|....*....
gi 1913184748   1 MEEMEEELKCPVCGSFYREPIILPCSHNLCQACARNILV 39
Cdd:cd16754     1 METLESELTCPICLELFEDPLLLPCAHSLCFSCAHRILT 39

Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, fibronectin. The tenth fibronectin type III repeat contains a RGD cell recognition sequence in a flexible loop between 2 strands. Type III modules are present in both extracellular and intracellular proteins.

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1913184748  380 THNNSATLSWKQPPLSTV--PADGYILELDDGNGGQFREVYVGKETMCTVDGLHFNSTYNARVKAFNKTGVS 449
Cdd:smart00060  12 VTSTSVTLSWEPPPDDGItgYIVGYRVEYREEGSEWKEVNVTPSSTSYTLTGLKPGTEYEFRVRAVNGAGEG 83

PRY/SPRY domain in tripartite motif-binding protein 7 (TRIM7)-like, including TRIM7, TRIM10, TRIM15, TRIM26, TRIM39, TRIM41; This domain, consisting of the distinct N-terminal PRY subdomain followed by the SPRY subdomain, is found at the C-terminus of several tripartite motif-containing (TRIM) proteins, including TRIM7 (also referred to as glycogenin-interacting protein, RING finger protein 90 or RNF90), TRIM10, TRIM15, TRIM26, TRIM39 and TRIM41. TRIM7 or GNIP interacts with glycogenin and stimulates its self-glucosylating activity via its SPRY domain. TRIM10 (also known as hematopoietic RING finger 1 (HERF1) or TRIM10/HERF1) plays a key role in definitive erythroid development; downregulation of the Spi-1/PU.1 oncogene induces the expression of TRIM10/HERF1, a key factor required for terminal erythroid cell differentiation and survival. Antiviral activity of TRIM15 is dependent on the ability of its B-box to interact with the MLV Gag precursor protein; downregulation of TRIM15, along with TRIM11, enhances virus release suggesting that these proteins contribute to the endogenous restriction of retroviruses in cells. Tripartite motif-containing 26 (TRIM26) function is as yet unknown; however, since it is localized in the human histocompatibility complex (MHC) class I region, TRIM26 may play a role in immune response although studies show no association between TRIM26 polymorphisms and the risk of aspirin-exacerbated respiratory disease. TRIM39 is a MOAP-1 (Modulator of Apoptosis)-binding protein that stabilizes MOAP-1 through inhibition of its poly-ubiquitination process. TRIM41 (also known as RING finger-interacting protein with C kinase or RINCK) functions as an E3 ligase that catalyzes the ubiquitin-mediated degradation of protein kinase C.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 467 FDPGSAHSDIILSNDNLTVTCSS-----------YD-DRVVLGKTGFSKGIHYWELTVDRYDNHpdpAFGVARMDVMK-- 532
Cdd:cd12888     4 LDPDTAHPRLVLSEDRKSVRWGDtrqdlpdnperFDtWPCVLGCEGFTSGRHYWEVEVGDGGGW---AVGVARESVRRkg 80

                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1913184748 533 DVMLGKDDKAWAI-TEGGITKGAT--------------IGVLLDLNRKNLTFFiNDEQQGPIafdnvegLFFPAVSLNR 596
Cdd:cd12888    81 EISFSPEEGIWAVgQWGGQYWALTspetplplsevprrIRVYLDYEGGQVAFF-DADNEAPI-------FTFPPASFAG 151

RING finger, HC subclass, found in tripartite motif-containing protein 69 (TRIM69) and similar proteins; TRIM69, also known as RFP-like domain-containing protein trimless or RING finger protein 36 (RNF36), is a testis E3 ubiquitin-protein ligase that plays a specific role in apoptosis and may also play an important role in germ cell homeostasis during spermatogenesis. TRIM69 belongs to the C-IV subclass of the TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil region, as well as a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain.

                          10        20
                  ....*....|....*....|....*...
gi 1913184748   6 EELKCPVCGSFYREPIILPCSHNLCQAC 33
Cdd:cd16611     3 EELHCPLCLDFFRDPVMLSCGHNFCQSC 30

B-box-type 1 zinc finger found in midline-2 (MID2) and similar proteins; MID2, also known as midin-2, midline defect 2, RING finger protein 60 (RNF60), or tripartite motif-containing protein 1 (TRIM1), is a probable E3 ubiquitin-protein ligase that is highly related to MID1, which associates with cytoplasmic microtubules along their length and throughout the cell cycle. Like MID1, MID2 associates with the microtubule network and may at least partially compensate for the loss of MID1. Both MID1 and MID2 interacts with alpha4, a regulatory subunit of PP2-type phosphatases, such as PP2A, and an integral component of the rapamycin-sensitive signaling pathway. MID2 can also substitute for MID1 to control exocytosis of lytic granules in cytotoxic T cells. Loss-of-function mutations in MID2 lead to human X-linked intellectual disability (XLID). MID2 belongs to the C-I subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxy-terminal subgroup one signature) box, a fibronectin type III (FN3) domain, and a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain. The type 1 B-box (Bbox1) zinc finger is characterized by a C6H2 zinc-binding consensus motif. MID2 heterodimerizes in vitro with its paralog MID1.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 1913184748 166 LKCQLCEK-APKEATVMCEQCDVFYCDPCRLRCHPPRGPLAKHRLVPP 212
Cdd:cd19837     3 IACQFCEQePPRDAVKTCITCEVSYCDRCLRATHPNKKPFTSHRLVEP 50

PRY/SPRY domain, also known as B30.2; This domain contains residues in the N-terminus that form a distinct PRY domain structure such that the B30.2 domain consists of PRY and SPRY subdomains. B30.2 domains comprise the C-terminus of three protein families: BTNs (receptor glycoproteins of immunoglobulin superfamily); several TRIM proteins (composed of RING/B-box/coiled-coil core); Stonutoxin (secreted poisonous protein of the stonefish Synanceia horrida). While SPRY domains are evolutionarily ancient, B30.2 domains are a more recent adaptation where the SPRY/PRY combination is a possible component of immune defense. Among the TRIM proteins, also known as the N-terminal RING finger/B-box/coiled coil (RBCC) family, only Classes I and II contain the B30.2 domain that has evolved under positive selection. Class I TRIM proteins include multiple members involved in antiviral immunity at various levels of interferon signaling cascade. Among the 75 human TRIMs, roughly half enhance immune response, which they do at multiple levels in signaling pathways. The PRY-SPRY domain in these TRIM families is suggested to serve as the target binding site.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 467 FDPGSAHSDIILSNDNLTVTCSSYDDR------------VVLGKTGFSKGIHYWEltVDRYDNHpDPAFGVA-----RMD 529
Cdd:cd12874     3 FDPDTAHLNLILSDDLRSVRVGDISQHppeppprffecwQVLGSQSFSSGRHYWE--VDVQDDS-SWYVGVTykslpRKG 79

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 1913184748 530 VMkdVMLGKDDKAWAI---------------TEGGITKGATIGVLLDLNRKNLTFF 570
Cdd:cd12874    80 KM--SNLGRNNGSWCLewrenefsawhnnpeTRLPVTPPRRLGVFLDCDGGSLSFY 133

RING finger, HC subclass, found in tripartite motif-containing protein TRIM25 and similar proteins; TRIM25, also known as estrogen-responsive finger protein (EFP), RING finger protein 147 (RNF147), or RING-type E3 ubiquitin transferase, is an E3 ubiquitin/ISG15 ligase that is induced by estrogen and is therefore particularly abundant in placenta and uterus. TRIM25 regulates various cellular processes through E3 ubiquitin ligase activity, transferring ubiquitin and ISG15 to target proteins. It mediates K63-linked polyubiquitination of retinoic acid inducible gene I (RIG-I) that is crucial for downstream antiviral interferon signaling. It is also required for melanoma differentiation-associated gene 5 (MDA5) and mitochondrial antiviral signaling (MAVS, also known as IPS-1, VISA, Cardiff) mediated activation of nuclear factor-kappaB (NF-kappaB) and interferon production. Upon UV irradiation, TRIM25 interacts with mono-ubiquitinated PCNA and promotes its ISG15 modification (ISGylation), suggesting a crucial role in termination of error-prone translesion DNA synthesis. TRIM25 also functions as a novel regulator of p53 and Mdm2. It enhances p53 and Mdm2 abundance by inhibiting their ubiquitination and degradation in 26S proteasomes. Meanwhile, it inhibits p53's transcriptional activity and dampens the response to DNA damage, and is essential for medaka development and this dependence is rescued by silencing of p53. Moreover, TRIM25 is involved in the host cellular innate immune response against retroviral infection. It interferes with the late stage of feline leukemia virus (FeLV) replication. Furthermore, TRIM25 acts as an oncogene in gastric cancer. Its blockade by RNA interference inhibits migration and invasion of gastric cancer cells through transforming growth factor-beta (TGF-beta) signaling, suggesting it presents a novel target for the detection and treatment of gastric cancer. In addition, TRIM25 acts as an RNA-specific activator for Lin28a/TuT4-mediated uridylation. TRIM25 belongs to the C-IV subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil region, as well as a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain.

                          10        20        30
                  ....*....|....*....|....*....|.
gi 1913184748   3 EMEEELKCPVCGSFYREPIILPCSHNLCQAC 33
Cdd:cd16597     1 DLEEELTCSICLELFKDPVTLPCGHNFCGVC 31

PRY/SPRY domain in tripartite motif-containing (TRIM) proteins, including TRIM5, TRIM6, TRIM7, TRIM10, TRIM11, TRIM17, TRIM20, TRIM21, TRIM27, TRIM35, TRIM38, TRIM41, TRIM50, TRIM58, TRIM60, TRIM62, TRIM69, TRIM72, NF7 and bloodthirsty; This domain, consisting of the distinct N-terminal PRY subdomain followed by the SPRY subdomain, is found at the C-terminus of several Class IV TRIM proteins, including TRIM7, TRIM35, TRIM41, TRIM50, TRIM62, TRIM69, TRIM72, TRIM protein NF7 and bloodthirsty (bty). TRIM7 interacts with glycogenin and stimulates its self-glucosylating activity via its SPRY domain. TRIM35 may play a role as a tumor suppressor and is implicated in the cell death mechanism. TRIM41 is localized to speckles in the cytoplasm and nucleus, and functions as an E3 ligase that catalyzes the ubiquitin-mediated degradation of protein kinase C. TRIM50, an E3 ubiquitin ligase, is deleted in Williams-Beuren (WBS) syndrome, a multi-system neurodevelopmental disorder caused by the deletion of contiguous genes at chromosome region 7q11.23. TRIM62 is involved in the morphogenesis of the mammary gland; loss of TRIM62 gene expression in breast is associated with increased risk of recurrence in early-onset breast cancer. TRIM69 is a novel testis E3 ubiquitin ligase that may function to ubiquitinate its particular substrates during spermatogenesis. In humans, TRIM69 localizes in the cytoplasm and nucleus, and requires an intact RING finger domain to function. TRIM protein NF7, which also contains a chromodomain (CHD) at the N-terminus and an RFP (Ret finger protein)-like domain at the C-terminus, is required for its association with transcriptional units of RNA polymerase II which is mediated by a trimeric B box. In Xenopus oocyte, xNF7 has been identified as a nuclear microtubule-associated protein (MAP) whose microtubule-bundling activity, but not E3-ligase activity, contributes to microtubule organization and spindle integrity. Bloodthirsty (bty) is a novel gene identified in zebrafish and has been shown to likely play a role in in regulation of the terminal steps of erythropoiesis. TRIM72 has been shown to perform a critical function in membrane repair following acute muscle injury by nucleating the assembly of the repair machinery at injury sites. The PRY-SPRY domain in these TRIM families is suggested to serve as the target binding site.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 467 FDPGSAHSDIILSNDNLTVTCSS-----------YDDRV-VLGKTGFSKGIHYWELTVdryDNHPDPAFGVARMDVMK-- 532
Cdd:cd13733     4 LDPDTAHPNLILSEDLKSVRYGDkrqnlpdnperFDTCVcVLGSEGFSSGRHYWEVEV---GGKTDWDLGVARESVNRkg 80

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1913184748 533 DVMLGKDDKAWAI--TEGGITKGAT--------------IGVLLDLNRKNLTFF 570
Cdd:cd13733    81 KITLSPENGYWTVglRNGNEYKALTspstplslrekpqkVGVFLDYEEGQVSFY 134

RING finger, HC subclass, found in tripartite motif-containing protein 13 (TRIM13) and similar proteins; TRIM13, also known as B-cell chronic lymphocytic leukemia tumor suppressor Leu5, leukemia-associated protein 5, putative tumor suppressor RFP2, RING finger protein 77 (RNF77), or Ret finger protein 2, is an endoplasmic reticulum (ER) membrane anchored E3 ubiquitin-protein ligase that interacts with proteins localized to the ER, including valosin-containing protein (VCP), a protein indispensable for ER-associated degradation (ERAD). It also targets the known ER proteolytic substrate CD3-delta, but not the N-end rule substrate Ub-R-YFP (yellow fluorescent protein) for degradation. Moreover, TRIM13 regulates ubiquitination and degradation of NEMO to suppress tumor necrosis factor (TNF) induced nuclear factor-kappaB (NF- kappa B) activation. It is also involved in NF-kappaB p65 activation and nuclear factor of activated T-cells (NFAT)-dependent activation of c-Rel upon T-cell receptor engagement. Furthermore, TRIM13 negatively regulates melanoma differentiation-associated gene 5 (MDA5)-mediated type I interferon production. It also regulates caspase-8 ubiquitination, translocation to autophagosomes, and activation during ER stress induced cell death. Meanwhile, TRIM13 enhances ionizing radiation-induced apoptosis by increasing p53 stability and decreasing AKT kinase activity through MDM2 and AKT degradation. TRIM13 belongs to the C-V subclass of the TRIM (tripartite motif) family of proteins that are defined by an N-terminal RBCC (RING, Bbox, and coiled coil) domain, including three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil region. In addition, TRIM13 contains a C-terminal transmembrane domain.

                          10        20        30
                  ....*....|....*....|....*....|....
gi 1913184748   5 EEELKCPVCGSFYREPIILPCSHNLCQACARNIL 38
Cdd:cd16762     1 EEDLTCPICCCLFDDPRVLPCSHNFCKKCLEGIL 34

B-box-type 2 zinc finger (Bbox2); The B-box-type zinc finger is a short zinc binding domain of around 40 amino acid residues in length. It has been found in transcription factors, ribonucleoproteins and proto-oncoproteins, such as in TRIM (tripartite motif) proteins that consist of an N-terminal RING finger (originally called an A-box), followed by 1-2 B-box domains and a coiled-coil domain (also called RBCC for Ring, B-box, Coiled-Coil). The B-box-type zinc finger often presents in combination with other motifs, like RING zinc finger, NHL motif, coiled-coil or RFP domain in functionally unrelated proteins, most likely mediating protein-protein interaction. Based on different consensus sequence and the spacing of the 7-8 zinc-binding residues, B-box-type zinc fingers can be divided into two groups, type 1 (Bbox1: C6H2) and type 2 (Bbox2: CHC3H2). The family corresponds to type 2 B-box (Bbox2).

                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 1913184748 229 CTDHELENHSMYCVQCKMPVCYQCLEEGKHSSHEVKAL 266
Cdd:cd19756     2 CPEHPEEPLKLFCETCQELVCVLCLLSGEHRGHKVVPL 39

B-Box-type zinc finger;

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|...
gi 1913184748  224 RKVSTCTDHELENHSMYCVQCKMPVCYQClEEGKHSSHEVKAL 266
Cdd:smart00336   1 QRAPKCDSHGDEPAEFFCEECGALLCRTC-DEAEHRGHTVVLL 42

B-box-type 2 zinc finger found in tripartite motif-containing protein 36 (TRIM36) and similar proteins; TRIM36, human ortholog of mouse Haprin, also known as RING finger protein 98 (RNF98) or zinc-binding protein Rbcc728, is an E3 ubiquitin-protein ligase expressed in the germ plasm. It has been implicated in acrosome reaction, fertilization, and embryogenesis, as well as in carcinogenesis. TRIM36 functions upstream of Wnt/beta-catenin activation, and plays a role in controlling the stability of proteins regulating microtubule polymerization during cortical rotation, and subsequently dorsal axis formation. It is also potentially associated with chromosome segregation through interacting with the kinetochore protein centromere protein-H (CENP-H), and colocalizing with the microtubule protein alpha-tubulin. Its overexpression may cause chromosomal instability and carcinogenesis. It is, thus, a novel regulator affecting cell cycle progression. Moreover, TRIM36 plays a critical role in the arrangement of somites during embryogenesis. TRIM36 belongs to the C-I subclass of TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a RING finger, Bbox1 and Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, a fibronectin type III (FN3) domain, and a B30.2/SPRY (SplA and ryanodine receptor) domain positioned C-terminal to the RBCC domain. The type 2 B-box (Bbox2) zinc finger is characterized by a CHC3H2 zinc-binding consensus motif.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|...
gi 1913184748 229 CTDHELENHSMYCVQCKMPVCYQCLEEGKHSSHEVKALGAMWK 271
Cdd:cd19778     3 CPEHEMEKVNMYCEACRRPVCHLCKLGGSHANHRVTSMSSAYK 45

PRY/SPRY domain of TRIM18/MID1, also known as FXY or RNF59; This domain, consisting of the distinct N-terminal PRY subdomain followed by the SPRY subdomain, is at the C-terminus of the overall domain architecture of MID1 (also known as FXY, RNF59, TRIM18) gene represented by a RING finger domain (RING), two B-box motifs (BBOX), coiled-coil C-terminal to Bbox domain (BBC) and fibronectin type 3 domain (FN3). Mutations in the human MID1 gene result in X-linked Opitz G/BBB syndrome (OS), a disorder affecting development of midline structures, causing craniofacial, urogenital, gastrointestinal and cardiovascular abnormalities. A unique MID1 gene mutation located in a variable loop in the SPRY domain alters conformation of the binding pocket and may affect the binding affinity to the PRY/SPRY domain.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 465 FAFDPGSAHSDIILSNDNLTVT--------------CSSYDDRVVLGKTGFSKGIHYWELTVDRYDNHpdpAFGVARMDV 530
Cdd:cd12892     2 FKLDPKSAHRKLKVSHDNLTVErdetsskkshtperFTSQGSYGVAGNVFIDSGRHYWEVVISGSTWY---AIGIAYKSA 78

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 531 MKDVMLGKDDKAWAITEGGITKGA----------------TIGVLLDLNRKNLTFFINDEQQGPIAFDNVEGLFFPAVSL 594
Cdd:cd12892    79 PKHEWIGKNSASWVLCRCNNNWVVrhnskeipiepsphlrRVGILLDYDNGSLSFYDALNSIHLYTFDIAFAQPVCPTFT 158

                         170
                  ....*....|....*.
gi 1913184748 595 NRNVQVTLHTGLPVPD 610
Cdd:cd12892   159 VWNKCLTILTGLPIPD 174

RING finger, HC subclass, found in tripartite motif-containing protein 8 (TRIM8) and similar proteins; TRIM8, also known as glioblastoma-expressed RING finger protein (GERP) or RING finger protein 27 (RNF27), is a probable E3 ubiquitin-protein ligase that may promote proteasomal degradation of suppressor of cytokine signaling 1 (SOCS1) and further regulate interferon-gamma signaling. It functions as a new p53 modulator that stabilizes p53 impairing its association with MDM2 and inducing the reduction of cell proliferation. TRIM8 deficit dramatically impairs p53 stabilization and activation in response to chemotherapeutic drugs. TRIM8 also modulates tumor necrosis factor-alpha (TNFalpha) and interleukin-1beta (IL-1beta)-triggered nuclear factor-kappaB (NF- kappa B) activation by targeting transforming growth factor beta (TGFbeta) activated kinase 1 (TAK1) for K63-linked polyubiquitination. Moreover, TRIM8 modulates translocation of phosphorylated STAT3 into the nucleus through interaction with Hsp90beta and consequently regulates transcription of Nanog in embryonic stem cells. It also interacts with protein inhibitor of activated STAT3 (PIAS3), which inhibits IL-6-dependent activation of STAT3. TRIM8 belongs to the C-V subclass of the TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox1 and Bbox2, and a coiled coil domain, as well as an uncharacterized region positioned C-terminal to the RBCC domain. The coiled coil domain is required for homodimerization and the region immediately C-terminal to the RING motif is sufficient to mediate the interaction with SOCS1.

                          10        20
                  ....*....|....*....|....*....
gi 1913184748   5 EEELKCPVCGSFYREPIILPCSHNLCQAC 33
Cdd:cd16580     9 EEELICPICLHVFVEPVQLPCKHNFCRGC 37

Ret finger protein-like (RFPL), includes RFP1, 2, 3, 4; This domain, consisting of the distinct N-terminal PRY subdomain followed by the SPRY subdomain, is found at the C-terminus of RFPL protein family, which includes RFPL1, RFPL2, RFPL3 and RFPL4. In humans, RFPL transcripts can be detected at the onset of neurogenesis in differentiating human embryonic stem cells, and in the developing human neocortex. The human RFPL1, 2, 3 genes have a role in neocortex development. RFPL1 is a primate-specific target gene of Pax6, a key transcription factor for pancreas, eye and neocortex development; human RFPL1 decreases cell number through its RFPL-defining motif (RDM) and SPRY domains. The RFPL4 (also known as RFPL4A) gene encodes a putative E3 ubiquitin-protein ligase expressed in adult germ cells and interacts with oocyte proteins of the ubiquitin-proteasome degradation pathway.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1913184748 467 FDPGSAHSDIILSNDNLTVTCSS-----------YDDRV-VLGKTGFSKGIHYWELTVDR---YDnhpdpaFGVARMDV- 530
Cdd:cd15821     8 LDVDTANNYLIISEDLRSVRCGCfrqnrkelaerFDDALcVLGSPRFTSGRHYWEVDVGTsteWD------LGVCRESVn 81

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 1913184748 531 -MKDVMLGKDDKAWAIT--EGGI----TKGAT----------IGVLLDLNRKNLTFF 570
Cdd:cd15821    82 rQGPIELSPEHGFWTVSlrDGSVffasTVPLTvlwvnprlhrVGIFLDMEMGTISFY 138

RING finger, HC subclass, found in muscle-specific RING finger protein 2 (MuRF-2) and similar proteins; MuRF-2, also known as tripartite motif-containing protein 55 (TRIM55) or RING finger protein 29 (RNF29), is a muscle-specific E3 ubiquitin-protein ligase in ubiquitin-mediated muscle protein turnover and is also a ligand of the transactivation domain of the serum response transcription factor (SRF). It is predominantly slow-fibre associated and highly expressed in embryonic skeletal muscle. MuRF-2 associates transiently with microtubules, myosin, and titin during sarcomere assembly. It has been implicated in microtubule, intermediate filament, and sarcomeric M-line maintenance in striated muscle development, as well as in signaling from the sarcomere to the nucleus. It plays an important role in the earliest stages of skeletal muscle differentiation and myofibrillogenesis. It is developmentally downregulated and is assembled at the M-line region of the sarcomere and with microtubules. MuRF-2 belongs to the C-II subclass of the TRIM (tripartite motif) family of proteins that are defined by their N-terminal RBCC (RING, Bbox, and coiled coil) domains, including three consecutive zinc-binding domains, a C3HC4-type RING-HC finger, Bbox2, and a coiled coil region, as well as a COS (carboxyl-terminal subgroup one signature) box, and an acidic residue-rich (AR) domain. It also harbors a MURF family-specific conserved box (MFC) between its RING-HC finger and Bbox domains.

                          10        20        30
                  ....*....|....*....|....*....|....*
gi 1913184748   5 EEELKCPVCGSFYREPI-ILPCSHNLCQACARNIL 38
Cdd:cd16760     1 EKQLICPICLEMFTKPVvILPCQHNLCRKCANDIF 35