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Conserved domains on  [gi|292630843|sp|P0CE72|]
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RecName: Full=Oncomodulin-1; Short=OM; AltName: Full=Parvalbumin beta

Protein Classification

parvalbumin beta( domain architecture ID 11611181)

parvalbumin beta has some calmodulin-like activity with respect to enzyme activation and growth regulation

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
EFh_parvalbumin_beta cd16255
EF-hand, calcium binding motif, found in beta-parvalbumin; Beta-parvalbumin, also termed ...
 9-109 2.69e-52

EF-hand, calcium binding motif, found in beta-parvalbumin; Beta-parvalbumin, also termed Oncomodulin-1 (OM), is a small calcium-binding protein that is expressed in hepatomas, as well as in the blastocyst and the cytotrophoblasts of the placenta. It is also found to be expressed in the cochlear outer hair cells of the organ of Corti and frequently expressed in neoplasms. Mammalian beta-parvalbumin is secreted by activated macrophages and neutrophils. It may function as a tissue-specific Ca2+-dependent regulatory protein, and may also serve as a specialized cytosolic Ca2+ buffer. Beta-parvalbumin acts as a potent growth-promoting signal between the innate immune system and neurons in vivo. It has high and specific affinity for its receptor on retinal ganglion cells (RGC) and functions as the principal mediator of optic nerve regeneration. It exerts its effects in a cyclic adenosine monophosphate (cAMP)-dependent manner and can further elevate intracellular cAMP levels. Moreover, beta-parvalbumin is associated with efferent function and outer hair cell electromotility, and can identify different hair cell types in the mammalian inner ear. Beta-parvalbumin is characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. The EF site displays a high-affinity for Ca2+/Mg2+, and the CD site is a low-affinity Ca2+-specific site. In addition, beta-parvalbumin is distinguished from other parvalbumins by its unusually low isoelectric point (pI = 3.1) and sequence eccentricities (e.g., Y57-L58-D59 instead of F57-I58-E59).


:

Pssm-ID: 319998 [Multi-domain]  Cd Length: 101  Bit Score: 159.51  E-value: 2.69e-52
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843   9 ADDIAAALQECRDPDTFEPQKFFQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGARELTESETKSLMA 88
Cdd:cd16255    1 AADIAAALSQCQAADSFNFKKFFATSGLSKKSADDVKKVFEIIDQDKSGFIEEEELKLFLQNFSSGARELTDAETKAFLK 80

                         90       100
                 ....*....|....*....|.
gi 292630843  89 AADNDGDGKIGAEEFQEMVHS 109
Cdd:cd16255   81 AGDSDGDGKIGVEEFQALVKA 101
 
Name Accession Description Interval E-value
EFh_parvalbumin_beta cd16255
EF-hand, calcium binding motif, found in beta-parvalbumin; Beta-parvalbumin, also termed ...
 9-109 2.69e-52

EF-hand, calcium binding motif, found in beta-parvalbumin; Beta-parvalbumin, also termed Oncomodulin-1 (OM), is a small calcium-binding protein that is expressed in hepatomas, as well as in the blastocyst and the cytotrophoblasts of the placenta. It is also found to be expressed in the cochlear outer hair cells of the organ of Corti and frequently expressed in neoplasms. Mammalian beta-parvalbumin is secreted by activated macrophages and neutrophils. It may function as a tissue-specific Ca2+-dependent regulatory protein, and may also serve as a specialized cytosolic Ca2+ buffer. Beta-parvalbumin acts as a potent growth-promoting signal between the innate immune system and neurons in vivo. It has high and specific affinity for its receptor on retinal ganglion cells (RGC) and functions as the principal mediator of optic nerve regeneration. It exerts its effects in a cyclic adenosine monophosphate (cAMP)-dependent manner and can further elevate intracellular cAMP levels. Moreover, beta-parvalbumin is associated with efferent function and outer hair cell electromotility, and can identify different hair cell types in the mammalian inner ear. Beta-parvalbumin is characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. The EF site displays a high-affinity for Ca2+/Mg2+, and the CD site is a low-affinity Ca2+-specific site. In addition, beta-parvalbumin is distinguished from other parvalbumins by its unusually low isoelectric point (pI = 3.1) and sequence eccentricities (e.g., Y57-L58-D59 instead of F57-I58-E59).


Pssm-ID: 319998 [Multi-domain]  Cd Length: 101  Bit Score: 159.51  E-value: 2.69e-52
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843   9 ADDIAAALQECRDPDTFEPQKFFQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGARELTESETKSLMA 88
Cdd:cd16255    1 AADIAAALSQCQAADSFNFKKFFATSGLSKKSADDVKKVFEIIDQDKSGFIEEEELKLFLQNFSSGARELTDAETKAFLK 80

                         90       100
                 ....*....|....*....|.
gi 292630843  89 AADNDGDGKIGAEEFQEMVHS 109
Cdd:cd16255   81 AGDSDGDGKIGVEEFQALVKA 101
EF-hand_7 pfam13499
EF-hand domain pair;
42-107 5.52e-11

EF-hand domain pair;


Pssm-ID: 463900 [Multi-domain]  Cd Length: 67  Bit Score: 53.41  E-value: 5.52e-11
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 292630843   42 NQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGArELTESETKSLMAAADNDGDGKIGAEEFQEMV 107
Cdd:pfam13499   2 EKLKEAFKLLDSDGDGYLDVEELKKLLRKLEEGE-PLSDEEVEELFKEFDLDKDGRISFEEFLELY 66
FRQ1 COG5126
Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms];
31-109 3.67e-09

Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms];


Pssm-ID: 444056 [Multi-domain]  Cd Length: 137  Bit Score: 50.56  E-value: 3.67e-09
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 292630843  31 FQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQkfesgARELTESETKSLMAAADNDGDGKIGAEEFQEMVHS 109
Cdd:COG5126   58 GMESLFEATVEPFARAAFDLLDTDGDGKISADEFRRLLT-----ALGVSEEEADELFARLDTDGDGKISFEEFVAAVRD 131
PTZ00184 PTZ00184
calmodulin; Provisional
 40-109 1.66e-04

calmodulin; Provisional


Pssm-ID: 185504 [Multi-domain]  Cd Length: 149  Bit Score: 38.20  E-value: 1.66e-04
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843  40 SANQVKDVFRFIDNDQSGYLDEEELKFFLQKFesgARELTESETKSLMAAADNDGDGKIGAEEFQEMVHS 109
Cdd:PTZ00184  82 SEEEIKEAFKVFDRDGNGFISAAELRHVMTNL---GEKLTDEEVDEMIREADVDGDGQINYEEFVKMMMS 148
 
Name Accession Description Interval E-value
EFh_parvalbumin_beta cd16255
EF-hand, calcium binding motif, found in beta-parvalbumin; Beta-parvalbumin, also termed ...
 9-109 2.69e-52

EF-hand, calcium binding motif, found in beta-parvalbumin; Beta-parvalbumin, also termed Oncomodulin-1 (OM), is a small calcium-binding protein that is expressed in hepatomas, as well as in the blastocyst and the cytotrophoblasts of the placenta. It is also found to be expressed in the cochlear outer hair cells of the organ of Corti and frequently expressed in neoplasms. Mammalian beta-parvalbumin is secreted by activated macrophages and neutrophils. It may function as a tissue-specific Ca2+-dependent regulatory protein, and may also serve as a specialized cytosolic Ca2+ buffer. Beta-parvalbumin acts as a potent growth-promoting signal between the innate immune system and neurons in vivo. It has high and specific affinity for its receptor on retinal ganglion cells (RGC) and functions as the principal mediator of optic nerve regeneration. It exerts its effects in a cyclic adenosine monophosphate (cAMP)-dependent manner and can further elevate intracellular cAMP levels. Moreover, beta-parvalbumin is associated with efferent function and outer hair cell electromotility, and can identify different hair cell types in the mammalian inner ear. Beta-parvalbumin is characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. The EF site displays a high-affinity for Ca2+/Mg2+, and the CD site is a low-affinity Ca2+-specific site. In addition, beta-parvalbumin is distinguished from other parvalbumins by its unusually low isoelectric point (pI = 3.1) and sequence eccentricities (e.g., Y57-L58-D59 instead of F57-I58-E59).


Pssm-ID: 319998 [Multi-domain]  Cd Length: 101  Bit Score: 159.51  E-value: 2.69e-52
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843   9 ADDIAAALQECRDPDTFEPQKFFQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGARELTESETKSLMA 88
Cdd:cd16255    1 AADIAAALSQCQAADSFNFKKFFATSGLSKKSADDVKKVFEIIDQDKSGFIEEEELKLFLQNFSSGARELTDAETKAFLK 80

                         90       100
                 ....*....|....*....|.
gi 292630843  89 AADNDGDGKIGAEEFQEMVHS 109
Cdd:cd16255   81 AGDSDGDGKIGVEEFQALVKA 101
EFh_parvalbumin_like cd16251
EF-hand, calcium binding motif, found in parvalbumin-like EF-hand family; The family includes ...
 9-107 2.79e-34

EF-hand, calcium binding motif, found in parvalbumin-like EF-hand family; The family includes alpha- and beta-parvalbumins, and a group of uncharacterized calglandulin-like proteins. Parvalbumins are small, acidic, cytosolic EF-hand-containing Ca2+-buffer and Ca2+ transporter/shuttle proteins belonging to EF-hand superfamily. They are expressed by vertebrates in fast-twitch muscle cells, specific neurons of the central and peripheral nervous system, sensory cells of the mammalian auditory organ (Corti's cell), and some other cells, and characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. Thus, they may play an additional role in Mg2+ handling. Moreover, parvalbumins represent one of the major animal allergens. In metal-bound states, parvalbumins possess a rigid and stable tertiary structure and display strong allergenicity. In contrast, the metal-free parvalbumins are intrinsically disordered, and the loss of metal ions results in a conformational change that decreases their IgE binding capacity. Furthermore, parvalbumins have been widely used as a neuronal marker for a variety of functional brain systems. They also function as a Ca2+ shuttle transporting Ca2+ from troponin-C (TnC) to the sarcoplasmic reticulum (SR) Ca2+ pump during muscle relaxation. Thus they may facilitate myocardial relaxation and play important roles in cardiac diastolic dysfunction. Parvalbumins consists of alpha- and beta- sublineages, which can be distinguished on the basis of isoelectric point (pI > 5 for alpha; pI


Pssm-ID: 319994 [Multi-domain]  Cd Length: 101  Bit Score: 113.78  E-value: 2.79e-34
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843   9 ADDIAAALQECRDPDTFEPQKFFQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGARELTESETKSLMA 88
Cdd:cd16251    1 AKDIEKAPSAFRAHGSFNYKKFFEHVGLKQKSEDQIKKVFQILDKDKSGFIEEEELKYILKGFSIAGRDLTDEETKALLA 80

                         90
                 ....*....|....*....
gi 292630843  89 AADNDGDGKIGAEEFQEMV 107
Cdd:cd16251   81 AGDTDGDGKIGVEEFATLV 99
EFh_parvalbumins cd16253
EF-hand, calcium binding motif, found in parvalbumins; Parvalbumins are small, acidic, ...
 9-107 9.59e-33

EF-hand, calcium binding motif, found in parvalbumins; Parvalbumins are small, acidic, cytosolic EF-hand-containing Ca2+-buffer and Ca2+ transporter/shuttle proteins belonging to EF-hand superfamily. They are expressed by vertebrates in fast-twitch muscle cells, specific neurons of the central and peripheral nervous system, sensory cells of the mammalian auditory organ (Corti's cell), and some other cells, and characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. Thus, they may play an additional role in Mg2+ handling. Moreover, parvalbumins represent one of the major animal allergens. In metal-bound states, parvalbumins possess a rigid and stable tertiary structure and display strong allergenicity. In contrast, the metal-free parvalbumins are intrinsically disordered, and the loss of metal ions results in a conformational change that decreases their IgE binding capacity. Furthermore, parvalbumins have been widely used as a neuronal marker for a variety of functional brain systems. They also function as a Ca2+ shuttle transporting Ca2+ from troponin-C (TnC) to the sarcoplasmic reticulum (SR) Ca2+ pump during muscle relaxation. Thus they may facilitate myocardial relaxation and play important roles in cardiac diastolic dysfunction. Parvalbumins consists of alpha- and beta- sublineages, which can be distinguished on the basis of isoelectric point (pI > 5 for alpha; pI


Pssm-ID: 319996 [Multi-domain]  Cd Length: 101  Bit Score: 109.96  E-value: 9.59e-33
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843   9 ADDIAAALQECRDPDTFEPQKFFQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGARELTESETKSLMA 88
Cdd:cd16253    1 ANDIDIALAACQAADSFDHKAFFKAVGLSKKSPADIKKVFNILDQDKSGFIEEEELKLFLKNFSDGARVLSDKETKNFLA 80

                         90
                 ....*....|....*....
gi 292630843  89 AADNDGDGKIGAEEFQEMV 107
Cdd:cd16253   81 AGDSDGDGKIGVDEFKSMV 99
EFh_parvalbumin_alpha cd16254
EF-hand, calcium binding motif, found in alpha-parvalbumin; Alpha-parvalbumin is cytosolic Ca2 ...
 9-108 9.63e-32

EF-hand, calcium binding motif, found in alpha-parvalbumin; Alpha-parvalbumin is cytosolic Ca2+/Mg2+-binding protein expressed mainly in fast-twitch skeletal myofibrils, where it may act as a soluble relaxing factor facilitating the Ca2+-mediated relaxation phase. It is also expressed in rapidly firing neurons, particularly GABA-ergic neurons, and thus may confer protection against Ca2+ toxicity. The major role of alpha-parvalbumin is metal buffering and transport of Ca2+. It binds different metal cations, and exhibits very high affinity for Ca2+ and physiologically significant affinity for Mg2+. Alpha-parvalbumin is characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix) called AB, CD, and EF, but only CD and EF can chelate metal ions, such as Ca2+ and Mg2+. Both metal ion-binding sites in alpha-parvalbumin are high-affinity sites. Additionally, in contrast to beta-parvalbumin, alpha-parvalbumin is less acidic and has an additional residue in the C-terminal helix.


Pssm-ID: 319997 [Multi-domain]  Cd Length: 101  Bit Score: 107.22  E-value: 9.63e-32
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843   9 ADDIAAALQECRDPDTFEPQKFFQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGARELTESETKSLMA 88
Cdd:cd16254    1 AEDIKKAVGAFAAADSFDYKKFFEMVGLKKKSADDVKKVFHILDKDKSGFIEEDELKFVLKGFSPDGRDLSDKETKALLA 80

                         90       100
                 ....*....|....*....|
gi 292630843  89 AADNDGDGKIGAEEFQEMVH 108
Cdd:cd16254   81 AGDKDGDGKIGIDEFATLVA 100
EFh cd00051
EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal ...
 43-108 2.02e-13

EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal modulators; most examples in this alignment model have 2 active canonical EF hands. Ca2+ binding induces a conformational change in the EF-hand motif, leading to the activation or inactivation of target proteins. EF-hands tend to occur in pairs or higher copy numbers.


Pssm-ID: 238008 [Multi-domain]  Cd Length: 63  Bit Score: 59.48  E-value: 2.02e-13
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 292630843  43 QVKDVFRFIDNDQSGYLDEEELKFFLQKFEsgaRELTESETKSLMAAADNDGDGKIGAEEFQEMVH 108
Cdd:cd00051    1 ELREAFRLFDKDGDGTISADELKAALKSLG---EGLSEEEIDEMIREVDKDGDGKIDFEEFLELMA 63
EFh_calglandulin_like cd16252
EF-hand, calcium binding motif, found in uncharacterized calglandulin-like proteins; The ...
 11-109 5.32e-11

EF-hand, calcium binding motif, found in uncharacterized calglandulin-like proteins; The family corresponds to a group of uncharacterized calglandulin-like proteins. Although their biological function remain unclear, they show high sequence similarity with human calglandulin-like protein GAGLP, which is an ortholog of calglandulin from the venom glands of Bothrops insularis snake. Both GAGLP and calglandulin are putative Ca2+-binding proteins with four EF-hand motifs. However, members in this family contain only three EF-hand motifs. In this point, they may belong to the parvalbumin-like EF-hand family, which is characterized by the presence of three consecutive EF-hand motifs (helix-loop-helix).


Pssm-ID: 319995 [Multi-domain]  Cd Length: 106  Bit Score: 54.84  E-value: 5.32e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843  11 DIAAALQECRDPDTFEPQKFF---QTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKFESG--ARELTESETKS 85
Cdd:cd16252    3 DIDLLPSEMRHHGSFNYSKFFeymQKFQTSEQQEEAIRKAFQMLDKDKSGFIEWNEIKYILSTVPSSmpVAPLSDEEAEA 82

                         90       100
                 ....*....|....*....|....
gi 292630843  86 LMAAADNDGDGKIGAEEFQEMVHS 109
Cdd:cd16252   83 MIQAADTDGDGRIDFQEFSDMVKK 106
EF-hand_7 pfam13499
EF-hand domain pair;
42-107 5.52e-11

EF-hand domain pair;


Pssm-ID: 463900 [Multi-domain]  Cd Length: 67  Bit Score: 53.41  E-value: 5.52e-11
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 292630843   42 NQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGArELTESETKSLMAAADNDGDGKIGAEEFQEMV 107
Cdd:pfam13499   2 EKLKEAFKLLDSDGDGYLDVEELKKLLRKLEEGE-PLSDEEVEELFKEFDLDKDGRISFEEFLELY 66
FRQ1 COG5126
Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms];
31-109 3.67e-09

Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms];


Pssm-ID: 444056 [Multi-domain]  Cd Length: 137  Bit Score: 50.56  E-value: 3.67e-09
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 292630843  31 FQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQkfesgARELTESETKSLMAAADNDGDGKIGAEEFQEMVHS 109
Cdd:COG5126   58 GMESLFEATVEPFARAAFDLLDTDGDGKISADEFRRLLT-----ALGVSEEEADELFARLDTDGDGKISFEEFVAAVRD 131
EFh_HEF cd15902
EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand ...
 46-103 1.63e-05

EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand proteins family, also named the calbindin sub-family, contains a group of six EF-hand Ca2+-binding proteins, including calretinin (CR, also termed 29 kDa calbindin), calbindin D28K (CB, also termed vitamin D-dependent calcium-binding protein, avian-type), and secretagogin (SCGN). CR is a cytosolic hexa-EF-hand calcium-binding protein predominantly expressed in a variety of normal and tumorigenic t-specific neurons of the central and peripheral nervous system. It is a multifunctional protein implicated in many biological processes, including cell proliferation, differentiation, and cell death. CB is highly expressed in brain tissue. It is a strong calcium-binding and buffering protein responsible for preventing a neuronal death as well as maintaining and controlling calcium homeostasis. SCGN is a six EF-hand calcium-binding protein expressed in neuroendocrine, pancreatic endocrine and retinal cells. It plays a crucial role in cell apoptosis, receptor signaling and differentiation. It is also involved in vesicle secretion through binding to various proteins, including interacts with SNAP25, SNAP23, DOC2alpha, ARFGAP2, rootletin, KIF5B, beta-tubulin, DDAH-2, ATP-synthase and myeloid leukemia factor 2. SCGN functions as a Ca2+ sensor/coincidence detector modulating vesicular exocytosis of neurotransmitters, neuropeptides or hormones. Although the family members share a significant amount of secondary sequence homology, they display altered structural and biochemical characteristics, and operate in distinct fashions. CB contains six EF-hand motifs in a single globular domain, where EF-hands 1, 3, 4, 5 bind four calcium ions. CR contains six EF-hand motifs within two independent domains, CR I-II and CR III-VI. They harbor two and four EF-hand motifs, respectively. The first 5 EF-hand motifs are capable of binding calcium ions, while the EF-hand 6 is inactive. SCGN consists of the three globular domains each of which contains a pair of EF-hand motifs. Human SCGN simultaneously binds four calcium ions through its EF-hands 3, 4, 5 and 6 in one high affinity and three low affinity calcium-binding sites. In contrast, SCGNs in other lower eukaryotes, such as D. rerio, X. laevis, M. domestica, G. gallus, O. anatinus, are fully competent in terms of six calcium-binding.


Pssm-ID: 320075 [Multi-domain]  Cd Length: 254  Bit Score: 41.96  E-value: 1.63e-05
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 292630843  46 DVFRFIDNDQSGYLDEEELKFFLQKFESG------ARELTESETKSLMAAADNDGDGKIGAEEF 103
Cdd:cd15902    3 EVWMHFDADGNGYIEGKELDSFLRELLKAlngkdkTDDEVAEKKKEFMEKYDENEDGKIEIREL 66
EFh_PI-PLC cd15898
EF-hand motif found in eukaryotic phosphoinositide-specific phospholipase C (PI-PLC, EC 3.1.4. ...
 43-106 9.47e-05

EF-hand motif found in eukaryotic phosphoinositide-specific phospholipase C (PI-PLC, EC 3.1.4.11) isozymes; PI-PLC isozymes are signaling enzymes that hydrolyze the membrane phospholipids phosphatidylinositol-4,5-bisphosphate (PIP2) to generate two important second messengers in eukaryotic signal transduction cascades, Inositol 1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG). InsP3 triggers inflow of calcium from intracellular stores, while DAG, together with calcium, activates protein kinase C, which goes on to phosphorylate other molecules, leading to altered cellular activity. Calcium is required for the catalysis. This family corresponds to the four EF-hand motifs containing PI-PLC isozymes, including PI-PLC-beta (1-4), -gamma (1-2), -delta (1,3,4), -epsilon (1), -zeta (1), eta (1-2). Lower eukaryotes such as yeast and slime molds contain only delta-type isozymes. In contrast, other types of isoforms present in higher eukaryotes. This family also includes 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase 1 (PLC1) from fungi. Some homologs from plants contain only two atypical EF-hand motifs and they are not included. All PI-PLC isozymes except sperm-specific PI-PLC-zeta share a core set of domains, including an N-terminal pleckstrin homology (PH) domain, four atypical EF-hand motifs, a PLC catalytic core, and a single C2 domain. PI-PLC-zeta lacks the PH domain. The PLC catalytic core domain is a TIM barrel with two highly conserved regions (X and Y) split by a highly degenerate linker sequence. Most of EF-hand motifs found in PI-PLCs consist of a helix-loop-helix structure, but lack residues critical to metal binding. Moreover, the EF-hand region of most of PI-PLCs may have an important regulatory function, but it has yet to be identified. However, PI-PLC-zeta is a key exception. It is responsible for Ca2+ oscillations in fertilized oocytes and exhibits a high sensitivity to Ca2+ mediated through its EF-hand domain. In addition, PI-PLC-eta2 shows a canonical EF-loop directing Ca2+-sensitivity and thus can amplify transient Ca2+ signals. Also it appears that PI-PLC-delta1 can regulate the binding of PH domain to PIP2 in a Ca2+-dependent manner through its functionally important EF-hand domains. PI-PLCs can be activated by a variety of extracellular ligands, such as growth factors, hormones, cytokines and lipids. Their activation has been implicated in tumorigenesis and/or metastasis linked to migration, proliferation, growth, inflammation, angiogenesis and actin cytoskeleton reorganization. PI-PLC-beta isozymes are activated by G-protein coupled receptor (GPCR) through different mechanisms. However, PI-PLC-gamma isozymes are activated by receptor tyrosine kinase (RTK), such as Rho and Ras GTPases. In contrast, PI-PLC-epsilon are activated by both GPCR and RTK. PI-PLC-delta1 and PLC-eta 1 are activated by GPCR-mediated calcium mobilization. The activation mechanism for PI-PLC-zeta remains unclear.


Pssm-ID: 320029 [Multi-domain]  Cd Length: 137  Bit Score: 38.80  E-value: 9.47e-05
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 292630843  43 QVKDVFRFIDNDQSGYLDEEELKFFLQKFESgarELTESETKSLMAAADNDGDGKIGAEEFQEM 106
Cdd:cd15898    1 WLRRQWIKADKDGDGKLSLKEIKKLLKRLNI---RVSEKELKKLFKEVDTNGDGTLTFDEFEEL 61
EFh_PEF_ALG-2_like cd16185
EF-hand, calcium binding motif, found in homologs of mammalian apoptosis-linked gene 2 protein ...
 48-106 1.61e-04

EF-hand, calcium binding motif, found in homologs of mammalian apoptosis-linked gene 2 protein (ALG-2); The family includes some homologs of mammalian apoptosis-linked gene 2 protein (ALG-2) mainly found in lower eukaryotes, such as a parasitic protist Leishmarua major and a cellular slime mold Dictyostelium discoideum. These homologs contains five EF-hand motifs. Due to the presence of unfavorable residues at the Ca2+-coordinating positions, their non-canonical EF4 and EF5 hands may not bind Ca2+. Two Dictyostelium PEF proteins are the prototypes of this family. They may bind to cytoskeletal proteins and/or signal-transducing proteins localized to detergent-resistant membranes named lipid rafts, and occur as monomers or weak homo- or heterodimers like ALG-2. They can serve as a mediator for Ca2+ signaling-related Dictyostehum programmed cell death (PCD).


Pssm-ID: 320060 [Multi-domain]  Cd Length: 163  Bit Score: 38.35  E-value: 1.61e-04
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 292630843  48 FRFIDNDQSGYLDEEELKFFLqkfESGARELTESETKSLMAAADNDGDGKIGAEEFQEM 106
Cdd:cd16185    6 FRAVDRDRSGSIDVNELQKAL---AGGGLLFSLATAEKLIRMFDRDGNGTIDFEEFAAL 61
PTZ00184 PTZ00184
calmodulin; Provisional
 40-109 1.66e-04

calmodulin; Provisional


Pssm-ID: 185504 [Multi-domain]  Cd Length: 149  Bit Score: 38.20  E-value: 1.66e-04
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 292630843  40 SANQVKDVFRFIDNDQSGYLDEEELKFFLQKFesgARELTESETKSLMAAADNDGDGKIGAEEFQEMVHS 109
Cdd:PTZ00184  82 SEEEIKEAFKVFDRDGNGFISAAELRHVMTNL---GEKLTDEEVDEMIREADVDGDGQINYEEFVKMMMS 148
PTZ00183 PTZ00183
centrin; Provisional
 43-107 3.38e-04

centrin; Provisional


Pssm-ID: 185503 [Multi-domain]  Cd Length: 158  Bit Score: 37.75  E-value: 3.38e-04
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 292630843  43 QVKDVFRFIDNDQSGYLDEEELKFFLQkfeSGARELTESETKSLMAAADNDGDGKIGAEEFQEMV 107
Cdd:PTZ00183  18 EIREAFDLFDTDGSGTIDPKELKVAMR---SLGFEPKKEEIKQMIADVDKDGSGKIDFEEFLDIM 79
EFh_HEF cd15902
EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand ...
 47-103 2.11e-03

EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand proteins family, also named the calbindin sub-family, contains a group of six EF-hand Ca2+-binding proteins, including calretinin (CR, also termed 29 kDa calbindin), calbindin D28K (CB, also termed vitamin D-dependent calcium-binding protein, avian-type), and secretagogin (SCGN). CR is a cytosolic hexa-EF-hand calcium-binding protein predominantly expressed in a variety of normal and tumorigenic t-specific neurons of the central and peripheral nervous system. It is a multifunctional protein implicated in many biological processes, including cell proliferation, differentiation, and cell death. CB is highly expressed in brain tissue. It is a strong calcium-binding and buffering protein responsible for preventing a neuronal death as well as maintaining and controlling calcium homeostasis. SCGN is a six EF-hand calcium-binding protein expressed in neuroendocrine, pancreatic endocrine and retinal cells. It plays a crucial role in cell apoptosis, receptor signaling and differentiation. It is also involved in vesicle secretion through binding to various proteins, including interacts with SNAP25, SNAP23, DOC2alpha, ARFGAP2, rootletin, KIF5B, beta-tubulin, DDAH-2, ATP-synthase and myeloid leukemia factor 2. SCGN functions as a Ca2+ sensor/coincidence detector modulating vesicular exocytosis of neurotransmitters, neuropeptides or hormones. Although the family members share a significant amount of secondary sequence homology, they display altered structural and biochemical characteristics, and operate in distinct fashions. CB contains six EF-hand motifs in a single globular domain, where EF-hands 1, 3, 4, 5 bind four calcium ions. CR contains six EF-hand motifs within two independent domains, CR I-II and CR III-VI. They harbor two and four EF-hand motifs, respectively. The first 5 EF-hand motifs are capable of binding calcium ions, while the EF-hand 6 is inactive. SCGN consists of the three globular domains each of which contains a pair of EF-hand motifs. Human SCGN simultaneously binds four calcium ions through its EF-hands 3, 4, 5 and 6 in one high affinity and three low affinity calcium-binding sites. In contrast, SCGNs in other lower eukaryotes, such as D. rerio, X. laevis, M. domestica, G. gallus, O. anatinus, are fully competent in terms of six calcium-binding.


Pssm-ID: 320075 [Multi-domain]  Cd Length: 254  Bit Score: 35.79  E-value: 2.11e-03
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 292630843  47 VFRFIDNDQSGYLDEEELKFFLQKFESGAREL-----TESETKSLMAAADNDGDGKIGAEEF 103
Cdd:cd15902   95 IWRKYDTDGSGFIEAKELKGFLKDLLLKNKKHvsppkLDEYTKLILKEFDANKDGKLELDEM 156
EFh_HEF cd15902
EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand ...
 31-102 2.28e-03

EF-hand, calcium binding motif, found in the hexa-EF hand proteins family; The hexa-EF hand proteins family, also named the calbindin sub-family, contains a group of six EF-hand Ca2+-binding proteins, including calretinin (CR, also termed 29 kDa calbindin), calbindin D28K (CB, also termed vitamin D-dependent calcium-binding protein, avian-type), and secretagogin (SCGN). CR is a cytosolic hexa-EF-hand calcium-binding protein predominantly expressed in a variety of normal and tumorigenic t-specific neurons of the central and peripheral nervous system. It is a multifunctional protein implicated in many biological processes, including cell proliferation, differentiation, and cell death. CB is highly expressed in brain tissue. It is a strong calcium-binding and buffering protein responsible for preventing a neuronal death as well as maintaining and controlling calcium homeostasis. SCGN is a six EF-hand calcium-binding protein expressed in neuroendocrine, pancreatic endocrine and retinal cells. It plays a crucial role in cell apoptosis, receptor signaling and differentiation. It is also involved in vesicle secretion through binding to various proteins, including interacts with SNAP25, SNAP23, DOC2alpha, ARFGAP2, rootletin, KIF5B, beta-tubulin, DDAH-2, ATP-synthase and myeloid leukemia factor 2. SCGN functions as a Ca2+ sensor/coincidence detector modulating vesicular exocytosis of neurotransmitters, neuropeptides or hormones. Although the family members share a significant amount of secondary sequence homology, they display altered structural and biochemical characteristics, and operate in distinct fashions. CB contains six EF-hand motifs in a single globular domain, where EF-hands 1, 3, 4, 5 bind four calcium ions. CR contains six EF-hand motifs within two independent domains, CR I-II and CR III-VI. They harbor two and four EF-hand motifs, respectively. The first 5 EF-hand motifs are capable of binding calcium ions, while the EF-hand 6 is inactive. SCGN consists of the three globular domains each of which contains a pair of EF-hand motifs. Human SCGN simultaneously binds four calcium ions through its EF-hands 3, 4, 5 and 6 in one high affinity and three low affinity calcium-binding sites. In contrast, SCGNs in other lower eukaryotes, such as D. rerio, X. laevis, M. domestica, G. gallus, O. anatinus, are fully competent in terms of six calcium-binding.


Pssm-ID: 320075 [Multi-domain]  Cd Length: 254  Bit Score: 35.79  E-value: 2.28e-03
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 292630843  31 FQTSGLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKFESGARELTESETKS-----LMAAADNDGDGKIGAEE 102
Cdd:cd15902  170 FQILGAMDLTKEDFEKVFEHYDKDNNGVIEGNELDALLKDLLEKNKADIDKPDLEnfrdaILRACDKNKDGKIQKTE 246
EFh_HEF_CBN cd16179
EF-hand, calcium binding motif, found in Drosophila melanogaster calbindin-32 (CBN) and ...
 35-107 2.50e-03

EF-hand, calcium binding motif, found in Drosophila melanogaster calbindin-32 (CBN) and similar proteins; CBN, the product of the cbn gene, is a Drosophila homolog to vertebrate neuronal six EF-hand calcium binding proteins. It is expressed through most of ontogenesis with a selective distribution in the nervous system and in a few small adult thoracic muscles. Its precise biological role remains unclear. CBN contains six EF-hand motifs, but some of them may not bind calcium ions due to the lack of key residues.


Pssm-ID: 320079 [Multi-domain]  Cd Length: 261  Bit Score: 35.46  E-value: 2.50e-03
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 292630843  35 GLSKMSANQVKDVFRFIDNDQSGYLDEEELKFFLQKF-ESGARELTESE----TKSLMAAADNDGDGKIGAEEFQEMV 107
Cdd:cd16179  181 GAGKLTREDIDRVFALYDRDNNGTIENEELTGFLKDLlELVQEDYDEQDleefKEIILRGWDFNNDGKISRKELTMLL 258
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
 45-103 3.21e-03

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 33.35  E-value: 3.21e-03
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 292630843  45 KDVFRFIDNDQSGYLDEEELKFFLQKfeSGareLTESETKSLMAAADNDGDGKIGAEEF 103
Cdd:cd00052    2 DQIFRSLDPDGDGLISGDEARPFLGK--SG---LPRSVLAQIWDLADTDKDGKLDKEEF 55
EFh_CREC_cab45 cd16225
EF-hand, calcium binding motif, found in 45 kDa calcium-binding protein (Cab45); Cab45, also ...
 42-103 4.82e-03

EF-hand, calcium binding motif, found in 45 kDa calcium-binding protein (Cab45); Cab45, also termed stromal cell-derived factor 4 (SDF-4), is a soluble, lumenal Golgi resident low-affinity Ca2+-binding protein that contains six copies of the EF-hand Ca2+-binding motif. It is required for secretory pathway calcium ATPase1 (SPCA1)-dependent Ca2+ import into the trans-Golgi network (TGN) and plays an essential role in Ca2+-dependent secretory cargo sorting at the TGN.


Pssm-ID: 320023 [Multi-domain]  Cd Length: 278  Bit Score: 34.97  E-value: 4.82e-03
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 292630843  42 NQVKDVFRFIDNDQSGYLDEEEL-KFFLQKFESGARELTEsETKSLMAAADNDGDGKIGAEEF 103
Cdd:cd16225   34 KKLKEIFKKVDVNTDGFLSAEELeDWIMEKTQEHFQEAVE-ENEQIFKAVDTDKDGNVSWEEY 95
EF-hand_6 pfam13405
EF-hand domain;
43-71 4.90e-03

EF-hand domain;


Pssm-ID: 463869 [Multi-domain]  Cd Length: 30  Bit Score: 32.15  E-value: 4.90e-03
                          10        20
                  ....*....|....*....|....*....
gi 292630843   43 QVKDVFRFIDNDQSGYLDEEELKFFLQKF 71
Cdd:pfam13405   1 ELREAFKLFDKDGDGKISLEELRKALRSL 29
EF-hand_8 pfam13833
EF-hand domain pair;
55-103 6.52e-03

EF-hand domain pair;


Pssm-ID: 404678 [Multi-domain]  Cd Length: 54  Bit Score: 32.29  E-value: 6.52e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 292630843   55 QSGYLDEEELKFFLQKFesGARELTESETKSLMAAADNDGDGKIGAEEF 103
Cdd:pfam13833   1 EKGVITREELKRALALL--GLKDLSEDEVDILFREFDTDGDGYISFDEF 47
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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