N-terminal domain of syntaxin-6; Syntaxin-6 (STX6) is a component of a soluble NSF attachment protein receptor (SNARE) complex involved in intracellular vesicle trafficking and in the fusion of retrograde transport carriers with the trans-Golgi network (TGN). This model corresponds to N-terminal domain of STX6, which is a regulatory domain named Habc.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 49456701   5 DPFFVVKGEVQKAVNTAQGLFQRWTELLQDPSTATREEIDWTTNELRNNLRSIEWDLEDLDETISIVEANPRRFNLDATE 84
Cdd:cd21447   1 DPFFVVKGEVQKAVNTAQGLFQRWTELLQDPSSATKEEIDWTTNELRNSLRSIEWDLEDLDETISIVEANPRKFNLDPTE 80

                        90       100
                ....*....|....*....|...
gi 49456701  85 LSIRKAFITSTRQVVRDMKDQMS 107
Cdd:cd21447  81 LSIRKAFITSTRQVVREMKDQMS 103

N-terminal domain of syntaxin-6; Syntaxin-6 (STX6) is a component of a soluble NSF attachment protein receptor (SNARE) complex involved in intracellular vesicle trafficking and in the fusion of retrograde transport carriers with the trans-Golgi network (TGN). This model corresponds to N-terminal domain of STX6, which is a regulatory domain named Habc.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 49456701   5 DPFFVVKGEVQKAVNTAQGLFQRWTELLQDPSTATREEIDWTTNELRNNLRSIEWDLEDLDETISIVEANPRRFNLDATE 84
Cdd:cd21447   1 DPFFVVKGEVQKAVNTAQGLFQRWTELLQDPSSATKEEIDWTTNELRNSLRSIEWDLEDLDETISIVEANPRKFNLDPTE 80

                        90       100
                ....*....|....*....|...
gi 49456701  85 LSIRKAFITSTRQVVRDMKDQMS 107
Cdd:cd21447  81 LSIRKAFITSTRQVVREMKDQMS 103

SNARE motif of syntaxin 6; Syntaxin 6 forms a complex with syntaxin 16 (Qa), Vti1a (Qb) and VAMP4 (R-SNARE) and is involved in the regulation of recycling of early endosomes to the trans-Golgi network (TGN). Syntaxin 6 and its yeast homolog TLG1 are members of the Qc subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate 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.

                        10        20        30        40        50        60
                ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 49456701 166 VEQQDEQLELVSGSIGVLKNMSQRIGGELEEQAVMLEDFSHELESTQSRLDNVMKKLAKVSHMTSD 231
Cdd:cd15851   1 MREQDEQLDGVGGTVGNLREQAQLIGDELEEQAELLDDLDHEVDRTESRLDRGMKKMAKVIRKNED 66

SNARE domain; Most if not all vesicular membrane fusion events in eukaryotic cells are believed to be mediated by a conserved fusion machinery, the SNARE [soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein (SNAP) receptors] machinery. The SNARE domain is thought to act as a protein-protein interaction module in the assembly of a SNARE protein complex.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|.
gi 49456701   199 VMLEDFSHELESTQSRLDNVMKKLAKVSHMTSDRRQWCAIA 239
Cdd:pfam05739   1 EMLDRIDTNVENAQSNVERAQKELKKAVKYQKSNRKLKCII 41

N-terminal domain of syntaxin-6; Syntaxin-6 (STX6) is a component of a soluble NSF attachment protein receptor (SNARE) complex involved in intracellular vesicle trafficking and in the fusion of retrograde transport carriers with the trans-Golgi network (TGN). This model corresponds to N-terminal domain of STX6, which is a regulatory domain named Habc.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 49456701   5 DPFFVVKGEVQKAVNTAQGLFQRWTELLQDPSTATREEIDWTTNELRNNLRSIEWDLEDLDETISIVEANPRRFNLDATE 84
Cdd:cd21447   1 DPFFVVKGEVQKAVNTAQGLFQRWTELLQDPSSATKEEIDWTTNELRNSLRSIEWDLEDLDETISIVEANPRKFNLDPTE 80

                        90       100
                ....*....|....*....|...
gi 49456701  85 LSIRKAFITSTRQVVRDMKDQMS 107
Cdd:cd21447  81 LSIRKAFITSTRQVVREMKDQMS 103

N-terminal domain of syntaxin-10; Syntaxin-10 (STX10), also called Syn10, is part of a soluble NSF attachment protein receptor (SNARE) complex involved in vesicular transport from the late endosomes to the trans-Golgi network, such as the transport of mannose 6-phosphate receptors from endosomes to the Golgi after delivering lysosomal enzymes to the endocytic pathway. This model corresponds to the N-terminal domain of STX10, which is a regulatory domain named Habc.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 49456701   5 DPFFVVKGEVQKAVNTAQGLFQRWTELLQDPSTATREEIDWTTNELRNNLRSIEWDLEDLDETISIVEANPRRFNLDATE 84
Cdd:cd21446   1 DPFFVVKGEVQKAVNTARGLYQRWCELLQESVAVSKEELDWTTNELRNSLRSIEWDLEDLEETIGIVESNPRKFKIDPGE 80

                        90       100
                ....*....|....*....|...
gi 49456701  85 LSIRKAFITSTRQVVRDMKDQMS 107
Cdd:cd21446  81 LAERRAFVERTRESVKEMKDHMA 103

SNARE motif of syntaxin 6; Syntaxin 6 forms a complex with syntaxin 16 (Qa), Vti1a (Qb) and VAMP4 (R-SNARE) and is involved in the regulation of recycling of early endosomes to the trans-Golgi network (TGN). Syntaxin 6 and its yeast homolog TLG1 are members of the Qc subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate 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.

                        10        20        30        40        50        60
                ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 49456701 166 VEQQDEQLELVSGSIGVLKNMSQRIGGELEEQAVMLEDFSHELESTQSRLDNVMKKLAKVSHMTSD 231
Cdd:cd15851   1 MREQDEQLDGVGGTVGNLREQAQLIGDELEEQAELLDDLDHEVDRTESRLDRGMKKMAKVIRKNED 66

N-terminal domain of Arabidopsis thaliana syntaxin-61 and similar proteins; Arabidopsis thaliana syntaxin-61 (AtSYP61), also called osmotic stress-sensitive mutant 1 (OSM1), is a vesicle trafficking syntaxin protein that functions in the secretory pathway. It is involved in osmotic stress tolerance and in abscisic acid (ABA) regulation of stomatal responses in Arabidopsis. This model corresponds to the N-terminal domain of AtSYP61, which shows high sequence similarity with the N-terminal domain of yeast Tlg1p, a soluble NSF attachment protein receptor (SNARE) protein (of Qc type) involved in membrane fusion.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 49456701   5 DPFFVVKGEVQKAVNTAQGLFQRWTELLQDPSTATReeidwTTNELRNNLRSIEWDLEDLDETISIVEANPRRFNLDATE 84
Cdd:cd21445   2 DPFYLVRDEIQESVDKLQQSFRRWEGLPAGSAERAR-----LARELESDCESLEWQVDELDRAVDVAERDPARFGLSAAE 76

                        90       100
                ....*....|....*....|
gi 49456701  85 LSIRKAFITSTRQVVRDMKD 104
Cdd:cd21445  77 LESRRRWTSATRDQVSGIKE 96

N-terminal domain of t-SNARE affecting a late Golgi compartment protein 1 and similar proteins; t-SNARE affecting a late Golgi compartment protein 1 (Tlg1p), also called syntaxin TLG1, is a soluble NSF attachment protein receptor (SNARE) protein (of Qc type) involved in membrane fusion, probably in retrograde traffic of cytosolic double-membrane vesicles derived from both, early and possibly late endosomes/PVC (prevacuolar compartment) back to the trans-Golgi network (TGN or late Golgi). It has been reported to function both as a (target membrane) t-SNARE and as a (vesicle) v-SNARE. The model corresponds to the N-terminal domain of Tlg1p, which consists of a three-helix bundle.

                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 49456701   5 DPFFVVKGEVQKAVNTAQGLFQRwteLLQDPSTATREEIDWTTNELRNnlrsiewDLEDLDETISIVEANPRRFNLDATE 84
Cdd:cd21444   1 DPFNQVQEDAWSQLERLRQLLTS---YLRIPTNEAKSDFENNIQELEE-------TIEDLKQSVEISEADPERFGLDEEE 70

                        90       100
                ....*....|....*....|...
gi 49456701  85 LSIRKAFITSTRQVVRDMKDQMS 107
Cdd:cd21444  71 ISERERIVAELESQLDDLKEEWN 93

SNARE motif of SYN8; Fungal SYN8 is a member of the Qc subfamily of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) protein family presetn in the endosomes. SNARE 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. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.

                        10        20        30        40        50        60
                ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 49456701 167 EQQDEQLELVSGSIGVLKNMSQRIGGELEEQAVMLEDFSHELESTQSRLDNVMKKLAKVSHMTSD 231
Cdd:cd15859   2 LEQDEHLDHLSASIRRQHELSLQINDELDEQNELLDDLENGVDRTGRRLNRARRRLDKFRRKARE 66

SNARE motif of VAM7; Fungal VAM7 (vacuolar morphogenesis protein 7) is a member of the Qc subfamily of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) protein family involved in vacuolar protein transport and membrane fusion. SNARE 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. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.

                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*....
gi 49456701 166 VEQQDEQLELVSGSIGVLKNMSQRIGGELEEQAVMLEDFSHELESTQSRLDNVMKKLAK 224
Cdd:cd15858   1 MQEQDQQLEQLRKIVQRQKELGLAINQELEEQNELLDELDEDVDRTGGKLRVANKRAKR 59

SNARE motif of Bet1; Bet1 forms a complexes with GS27 (Qb), syntaxin-5 (Qa) and Sec22B (R-SNARE) or GS28 (Qb), syntaxin-5 (Qa) and Ykt6 (R-SNARE). These complexes regulates the early secretory pathway of eukaryotic cells at the level of the transport from endoplasmic reticulum (ER) to the ER-Golgi intermediate compartment (ERGIC) and from ERGIC to the cis-Golgi, respectively. Bet1 is a member of the Qc subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate 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.

                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*.
gi 49456701 167 EQQDEQLELVSGSIGVLKNMSQRIGGELEEQAVMLEDFSHELESTQSRLDNVMKKL 222
Cdd:cd15853   2 SQNDRRLDELSSKVSALKSLTIDIGDEVRDQNKLLDGMGDDFDSTGGLLGGTMKRL 57

C-terminal SNARE motif of SNAP23; C-terminal SNARE motifs of SNAP23, a member of the Qb/Qc subfamily of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins. SNAP23 interacts with Syntaxin-4 (Qa) and the R-SNARE VAMP8. The complex plays a role in exocytosis of secretory granule. Qb/Qc SNAREs consist of 2 coiled-coil helices (called SNARE motifs, one belonging to the Qb subgroup and one belonging to the Qc subgroup), which mediate the interactions with other SNARE proteins, and a transmembrane domain. In general, 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. Other members of the Qb/Qc SNAREs are SNAP25, SNAP29, SNAP47 and SEC9.

                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|
gi 49456701 167 EQQDEQLELVSGSIGVLKNMSQRIGGELEEQAVMLEDFSHELESTQSRLD 216
Cdd:cd15884   2 DEMDENLTQVGSILGNLKSMALDMGNELDKQNKQIGRINEKADMNSDRID 51