SNARE motif of VAMP7; The VAMP-7 (vesicle-associated membrane protein 7, also called synaptobrevin-like protein 1) protein belongs to the R-SNARE subgroup of SNAREs and interacts with syntaxin 7(Qa), syntaxin 8 (Qc) and Vti1b (Qb). The complex is involved in the transport from early endosomes to the lysosome via regulating the transport from multivesicular bodies to the lysosomes. SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins contain coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 223468574  83 DKVMETQAQVDELKGIMVRNIDLVAQRGERLELLIDKTENLVDSSVTFKTTSRNLARAMCMKNLK 147
Cdd:cd15871    1 DKVSKVQGQLDELKGIMVKNIDSIAQRGEKLELLVDKTEDLSSSSVTFKKTSRNLARAMCMKNIK 65

SNARE motif of VAMP7; The VAMP-7 (vesicle-associated membrane protein 7, also called synaptobrevin-like protein 1) protein belongs to the R-SNARE subgroup of SNAREs and interacts with syntaxin 7(Qa), syntaxin 8 (Qc) and Vti1b (Qb). The complex is involved in the transport from early endosomes to the lysosome via regulating the transport from multivesicular bodies to the lysosomes. SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins contain coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 223468574  83 DKVMETQAQVDELKGIMVRNIDLVAQRGERLELLIDKTENLVDSSVTFKTTSRNLARAMCMKNLK 147
Cdd:cd15871    1 DKVSKVQGQLDELKGIMVKNIDSIAQRGEKLELLVDKTEDLSSSSVTFKKTSRNLARAMCMKNIK 65

longin domain; Longin-domain is N-terminal domain of a subgroup of R-SNARE proteins, including VAMP7, Ykt6, and Sec22. Longin is one of the approximately 26 components required for transporting proteins from the ER to the plasma membrane, via the Golgi apparatus. It is necessary for the steps of the transfer from the ER to the Golgi complex. Longins are the only R-SNAREs that are common to all eukaryotes, and they are characterized by a conserved N-terminal domain with a profilin-like fold called a longin domain.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*....
gi 223468574  27 EDFERSRAFNFLNEIKKRFQTTYGSRAQTALPYAMNSEFSSVLAAQLKH 75
Cdd:cd14824   73 KEYPKRVAFAFLEEVLDEFLSKYGSSAWTAARPYLFSEFDPELKKLMKK 121

Synaptobrevin/VAMP-like protein [Intracellular trafficking and secretion];

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 223468574  31 RSRAFNFLNEIKKRFQTTYGSRAQT--ALPYAMNsEFSSVLAaqlKHHSENKGLDKVMETQAQVDELKGIMVRNIDLVAQ 108
Cdd:COG5143   79 NKLAYGYLNSIATEFLKSSALEQLIddTVGIMRV-NIDKVIE---KGYRDPSIQDKLDQLQQELEETKRVLNKNIEKVLY 154

                         90       100
                 ....*....|....*....|...
gi 223468574 109 RGERLELLIDKTENLVDSSVTFK 131
Cdd:COG5143  155 RDEKLDLLVDLSSILLLSSKMFP 177

SNARE motif of VAMP7; The VAMP-7 (vesicle-associated membrane protein 7, also called synaptobrevin-like protein 1) protein belongs to the R-SNARE subgroup of SNAREs and interacts with syntaxin 7(Qa), syntaxin 8 (Qc) and Vti1b (Qb). The complex is involved in the transport from early endosomes to the lysosome via regulating the transport from multivesicular bodies to the lysosomes. SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins contain coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 223468574  83 DKVMETQAQVDELKGIMVRNIDLVAQRGERLELLIDKTENLVDSSVTFKTTSRNLARAMCMKNLK 147
Cdd:cd15871    1 DKVSKVQGQLDELKGIMVKNIDSIAQRGEKLELLVDKTEDLSSSSVTFKKTSRNLARAMCMKNIK 65

SNARE motif, subgroup R-SNARE; SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins consist of coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). In contrast to Qa-, Qb- and Qc-SNAREs that are localized to target organelle membranes, R-SNAREs are localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles. Examples for members of the Qa SNAREs are syntaxin 18, syntaxin 5, syntaxin 16, and syntaxin 1.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|
gi 223468574  83 DKVMETQAQVDELKGIMVRNIDLVAQRGERLELLIDKTENLVDSSVTFKTTSRNLARAMC 142
Cdd:cd15843    1 DKLSKVQEQVDEVKDVMQENIDKVLERGEKLEDLVDKTENLNESANAFKKQARKLKRKMW 60

SNARE motif of VAMP4; The VAMP-4 (vesicle-associated membrane protein 4) protein belongs to the R-SNARE subgroup of SNAREs and interacts with syntaxin 16 (Qa), Vti1a (Qb) and syntaxin 6 (Qc). This complex plays a role in maintenance of Golgi ribbon structure and normal retrograde trafficking from the early endosome to the trans-Golgi network (TGN). SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins contain coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 223468574  83 DKVMETQAQVDELKGIMVRNIDLVAQRGERLELLIDKTENLVDSSVTFKTTSRNLARAMCMKNLKL 148
Cdd:cd15869    2 DKIRRVQNQVDEVVDVMQDNITKVIDRGEKLEDLQDKSESLSDNASAFRSRSKQLRRKMWWQNCKM 67

Longin-like domains; Longin-like domains are small protein domains present in a variety of proteins and members of protein complexes involved in or required for different steps during the transport of proteins from the ribosome to the ER to the plasma membrane, via the Golgi apparatus. Examples are mu and sigma subunits of the heterotetrameric adaptor protein (AP) complex, zeta and delta subunits of the heterotetrameric F-COPI complex, a subgroup of R-SNARE proteins, a subfamily of the transport protein particle (TRAPP), and the signal recognition particle receptor subunit alpha (SR-alpha).

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*....
gi 223468574  24 NFLEDFERSRAFNFLNEIKKRFQTTYGSRAQTALPYAMNSEFSSVLAAQ 72
Cdd:cd14818   69 ITDEQELRQELFQTLNLLLKEFNSLHGSEVITKNIEDDLEEFESYLDIK 117

Regulated-SNARE-like domain; Longin is one of the approximately 26 components required for transporting proteins from the ER to the plasma membrane, via the Golgi apparatus. It is necessary for the steps of the transfer from the ER to the Golgi complex. Longins are the only R-SNAREs that are common to all eukaryotes, and they are characterized by a conserved N-terminal domain with a profilin-like fold called a longin domain.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|..
gi 223468574   27 EDFERSRAFNFLNEIKKRFQTTYGSR-AQTALPYAMNSEFSS 67
Cdd:pfam13774  40 KSYPRRLAFAFLEEIKDEFLSTYGPWtASALRPYAFNKEFDT 81

SNARE motif of VAMP2; The VAMP-2 (vesicle-associated membrane protein 2, also called synaptobrevin-2) protein belongs to the R-SNARE subgroup of SNAREs and interacts with Syntaxin-1 (Qa) and SNAP-25(Qb/Qc), as well as syntaxin 12 (Qa) and SNAP23 (Qb/Qc). The complexes play a role in transport of secretory granule from trans-Golgi network to the plasma membrane, and in the transport from early endosomes to and from the plasma membrane, respectively. SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins contain coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 223468574  83 DKVMETQAQVDELKGIMVRNIDLVAQRGERLELLIDKTENLVDSSVTFKTTSRNLARAMCMKN 145
Cdd:cd15870    1 KRLQQTQAQVDEVVDIMRVNVDKVLERDQKLSELDDRADALQAGASQFETSAGKLKRKYWWKN 63

SNARE motif of SEC22; SEC22 forms complexes with syntaxin 18 (Qa), Sec20 (Qb) and USE1 (Qc), and with syntaxin 5 (Qa), GS27 (Qb) and Bet1 (Qc). These complexes are involved in the transport from cis-Golgi to the endoplasmic reticulum (ER) and in the transport from endoplasmic reticulum (ER) to the ER-Golgi intermediate compartment (ERGIC), respectively. SEC22 is a member of the R-SNARE subfamily of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins which contain coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 223468574  93 DELKG---IMVRNIDLVAQRGERLELLIDKTENLVDSSVTFKTTSRNL-ARAMCMK 144
Cdd:cd15866    9 DELQDvqrIMTKNIDDVLGRGEKLDDLSDKSSNLSSESKKYKKDAKKLnLQALYRK 64

SNARE domain of STXBP5, STXBP6 and related proteins; Syntaxin binding protein 5 (STXBP5, also called Tomosyn), as well as its relative Syntaxin binding protein 6 (STXBP6, also called Amisyn) contains a C-terminal R-SNARE-like domain, which allows it to assemble into SNARE complexes, which in turn makes the complexes inactive and inhibits exocytosis. In general, SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins consist of coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qc-, as well as Qa- and Qb-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*
gi 223468574  87 ETQAQVDELKGIMVRNIDLVAQRGERLELLIDKTENLVDSSVTFKTTSRNLARAM 141
Cdd:cd15873    6 ALRAKAGSAASAAARARQALNERGEKLSELEDRTAEMEDNAESFASTAKELAKKY 60