1KIL | pdb_00001kil

Three-dimensional structure of the complexin/SNARE complex

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1kila_	Coiled coil proteins	Parallel coiled-coil	SNARE fusion complex	SNARE fusion complex	Synaptobrevin	Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
B	d1kilb_	Coiled coil proteins	Parallel coiled-coil	SNARE fusion complex	SNARE fusion complex	Syntaxin 1A	Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
C	d1kilc_	Coiled coil proteins	Parallel coiled-coil	SNARE fusion complex	SNARE fusion complex	Synaptosomal-associated protein SNAP-25	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1kild_	Coiled coil proteins	Parallel coiled-coil	SNARE fusion complex	SNARE fusion complex	Synaptosomal-associated protein SNAP-25	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E	d1kile_	Coiled coil proteins	Parallel coiled-coil	SNARE fusion complex	SNARE fusion complex	Complexin	Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	SNARE fusion complex	8043664	3001549	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	SNARE fusion complex	8043665	3001549	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	SNARE fusion complex	8044158	3001549	SCOP2B (2022-06-29)
E	SCOP2 Family	SNARE fusion complex	8027944	4003812	SCOP2 (2022-06-29)
E	SCOP2 Superfamily	SNARE fusion complex	8040323	3001549	SCOP2 (2022-06-29)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.5.110	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
B	1.20.5.110	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
C	1.20.5.110	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
D	1.20.5.110	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
E	1.20.5.580	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Single Helix bin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00957	Synaptobrevin (Synaptobrevin)	Synaptobrevin	The entry represents the entire v-SNARE coiled-coil homology domain. The process of vesicular membrane fusion in eukaryotic cells depends on a conserved fusion machinery called SNARE (soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein ...	The entry represents the entire v-SNARE coiled-coil homology domain. The process of vesicular membrane fusion in eukaryotic cells depends on a conserved fusion machinery called SNARE (soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein (SNAP) receptors). In the process of vesicle docking, proteins present on the vesicle (v-SNARE) have to bind to their counterpart on the target membrane (t-SNARE) to form a core complex that can then recruit the soluble proteins NSF and SNAP This so called fusion complex can then disassemble after ATP hydrolysis mediated by the ATPase NSF in a process that leads to membrane fusion and the release of the vesicle contents. v-SNAREs include proteins homologous to synaptobrevi [1, 2, 3].	Domain
B	PF05739	SNARE domain (SNARE)	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 dom ...	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. It is composed of about 70 amino acids arranged in an alpha-helical structure [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Synaptobrevin SNARE motif	protein binding binding SNARE binding syntaxin binding phospholipid binding lipid binding SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity protein-containing complex binding calmodulin binding identical protein binding syntaxin-1 binding transmembrane transporter binding protein binding binding SNARE binding syntaxin binding phospholipid binding lipid binding SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity protein-containing complex binding calmodulin binding identical protein binding syntaxin-1 binding transmembrane transporter binding cytoskeletal protein binding myosin binding calcium-dependent protein binding	Golgi to plasma membrane transport establishment of protein localization cellular localization protein localization to cell periphery nitrogen compound transport post-Golgi vesicle-mediated transport transport establishment of protein localization to membrane protein localization to plasma membrane establishment of protein localization to plasma membrane Golgi to plasma membrane protein transport localization within membrane protein localization to membrane establishment of localization vesicle-mediated transport Golgi to plasma membrane transport establishment of protein localization cellular localization protein localization to cell periphery nitrogen compound transport post-Golgi vesicle-mediated transport transport establishment of protein localization to membrane protein localization to plasma membrane establishment of protein localization to plasma membrane Golgi to plasma membrane protein transport localization within membrane protein localization to membrane establishment of localization vesicle-mediated transport vesicle-mediated transport to the plasma membrane localization protein transport macromolecule localization cellular process intracellular protein localization Golgi vesicle transport regulated exocytosis secretion export from cell secretion by cell exocytosis calcium-ion regulated exocytosis membrane organization protein-containing complex organization membrane fusion organelle membrane fusion cellular component organization cellular component biogenesis vesicle organization organelle fusion organelle organization cellular component assembly protein-containing complex assembly SNARE complex assembly cellular component organization or biogenesis vesicle fusion vesicle-mediated transport in synapse multicellular organismal process response to stimulus eosinophil activation cell activation involved in immune response leukocyte degranulation myeloid leukocyte mediated immunity myeloid leukocyte activation leukocyte activation establishment of localization in cell leukocyte activation involved in immune response eosinophil degranulation leukocyte mediated immunity eosinophil activation involved in immune response immune response cell activation myeloid cell activation involved in immune response immune effector process immune system process eosinophil mediated immunity granulocyte activation regulation of biological process signaling regulation of hormone levels biological regulation cell-cell signaling hormone secretion cell communication signal release hormone transport regulation of biological quality synaptic vesicle cycle synaptic vesicle exocytosis synaptic signaling trans-synaptic signaling neurotransmitter secretion neurotransmitter transport chemical synaptic transmission signal release from synapse anterograde trans-synaptic signaling regulation of localization regulation of cellular process regulation of protein localization positive regulation of biological process positive regulation of establishment of protein localization positive regulation of protein transport positive regulation of intracellular transport positive regulation of cellular process regulation of intracellular transport regulation of transport regulation of establishment of protein localization intracellular transport regulation of protein transport positive regulation of transport regulation of cellular localization positive regulation of protein localization regulation of intracellular protein transport positive regulation of intracellular protein transport intracellular protein transport membrane docking organelle localization by membrane tethering organelle localization vesicle docking involved in exocytosis synaptic vesicle docking vesicle docking exocytic process synaptic vesicle endocytosis import into cell presynaptic endocytosis synaptic vesicle recycling endocytosis regulation of transmembrane transporter activity regulation of delayed rectifier potassium channel activity transmembrane transport regulation of molecular function regulation of transmembrane transport regulation of synaptic vesicle recycling response to hexose response to monosaccharide response to carbohydrate response to glucose response to chemical response to oxygen-containing compound regulation of vesicle-mediated transport regulation of secretion regulation of secretion by cell regulation of exocytosis cellular response to stimulus cellular response to nitrogen compound response to endogenous stimulus response to peptide hormone cellular response to peptide hormone stimulus response to nitrogen compound cellular response to oxygen-containing compound cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to insulin cellular response to insulin stimulus cellular response to hormone stimulus protein localization to synapse neurotransmitter receptor transport to postsynaptic membrane establishment of protein localization to postsynaptic membrane neurotransmitter receptor transport to plasma membrane protein localization to postsynaptic membrane neurotransmitter receptor transport exocytic insertion of neurotransmitter receptor to postsynaptic membrane protein-containing complex localization regulation of postsynaptic membrane neurotransmitter receptor levels protein localization to postsynapse protein localization to cell junction receptor localization to synapse positive regulation of cell communication modulation of chemical synaptic transmission long-term synaptic potentiation regulation of synaptic plasticity regulation of signaling positive regulation of synaptic transmission regulation of trans-synaptic signaling regulation of cell communication positive regulation of signaling	cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle synapse cell junction glutamatergic synapse Golgi apparatus subcompartment Golgi apparatus organelle subcompartment trans-Golgi network SNARE complex protein-containing complex synaptobrevin 2-SNAP-25-syntaxin-1a complex membrane protein complex synaptobrevin 2-SNAP-25-syntaxin-1a-complexin II complex storage vacuole vacuole perinuclear region of cytoplasm zymogen granule zymogen granule membrane cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane organelle membrane secretory granule membrane transport vesicle membrane presynapse synaptic vesicle synaptic vesicle membrane transport vesicle exocytic vesicle membrane exocytic vesicle synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex axon neuron projection axon terminus plasma membrane bounded cell projection cell projection distal axon terminal bouton neuron projection terminus clathrin-coated vesicle coated vesicle cell periphery plasma membrane postsynaptic density postsynapse neuron to neuron synapse postsynaptic specialization asymmetric synapse cytosolic region postsynaptic cytosol cytosol
B	Syntaxin SNARE motif short	molecular function inhibitor activity chloride channel inhibitor activity channel regulator activity transporter inhibitor activity ion channel regulator activity ion channel inhibitor activity molecular function regulator activity transporter regulator activity channel inhibitor activity chloride channel regulator activity SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity protein-containing complex binding molecular function inhibitor activity chloride channel inhibitor activity channel regulator activity transporter inhibitor activity ion channel regulator activity ion channel inhibitor activity molecular function regulator activity transporter regulator activity channel inhibitor activity chloride channel regulator activity SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity protein-containing complex binding binding calcium channel inhibitor activity calcium channel regulator activity identical protein binding protein binding myosin heavy chain binding cytoskeletal protein binding myosin head/neck binding myosin binding ATP-dependent protein binding kinase binding enzyme binding transmembrane transporter binding SNARE binding calcium-dependent protein binding	localization transport neurotransmitter transport establishment of localization cellular response to stimulus multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process response to stimulus signaling modulation of chemical synaptic transmission regulation of system process regulation of signal transduction localization transport neurotransmitter transport establishment of localization cellular response to stimulus multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process response to stimulus signaling modulation of chemical synaptic transmission regulation of system process regulation of signal transduction chemical synaptic transmission, postsynaptic cell communication synaptic signaling modulation of excitatory postsynaptic potential regulation of multicellular organismal process signal transduction regulation of biological quality trans-synaptic signaling regulation of biological process regulation of signaling cell surface receptor signaling pathway nervous system process biological regulation cell-cell signaling chemical synaptic transmission regulation of nervous system process regulation of trans-synaptic signaling regulation of response to stimulus anterograde trans-synaptic signaling regulation of cell communication cellular process excitatory postsynaptic potential regulation of membrane potential positive regulation of cell communication positive regulation of signal transduction positive regulation of excitatory postsynaptic potential positive regulation of biological process positive regulation of response to stimulus positive regulation of cellular process positive regulation of signaling regulated exocytosis secretion export from cell vesicle-mediated transport secretion by cell exocytosis calcium-ion regulated exocytosis membrane organization protein-containing complex organization membrane fusion organelle membrane fusion cellular component organization cellular component biogenesis vesicle organization organelle fusion organelle organization cellular component assembly protein-containing complex assembly SNARE complex assembly cellular component organization or biogenesis vesicle fusion peptidyl-lysine modification primary metabolic process protein sumoylation macromolecule modification peptidyl-amino acid modification metabolic process protein metabolic process macromolecule metabolic process protein modification process post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal monoamine transport regulation of localization nitrogen compound transport regulation of catecholamine secretion organic hydroxy compound transport positive regulation of secretion by cell positive regulation of amine transport regulation of secretion by cell catecholamine transport positive regulation of secretion regulation of transport positive regulation of catecholamine secretion regulation of secretion catecholamine secretion amine transport positive regulation of transport regulation of amine transport regulation of calcium ion-dependent exocytosis positive regulation of exocytosis regulation of regulated secretory pathway positive regulation of regulated secretory pathway positive regulation of calcium ion-dependent exocytosis regulation of vesicle-mediated transport regulation of exocytosis cellular localization macromolecule localization intracellular protein localization localization within membrane protein localization to membrane regulation of hormone levels hormone secretion signal release hormone transport regulation of cellular component organization synaptic vesicle priming regulation of synaptic vesicle priming synaptic vesicle cycle synaptic vesicle exocytosis vesicle-mediated transport in synapse regulation of protein-containing complex assembly establishment of localization in cell neurotransmitter secretion regulation of cellular component biogenesis signal release from synapse exocytic process response to abiotic stimulus response to gravity establishment of protein localization protein localization to extracellular region peptide secretion amide transport establishment of protein localization to extracellular region protein secretion peptide transport protein transport peptide hormone secretion insulin secretion organelle localization by membrane tethering organelle localization vesicle docking membrane docking vesicle docking involved in exocytosis synaptic vesicle docking synaptic vesicle endocytosis import into cell presynaptic endocytosis synaptic vesicle recycling endocytosis intracellular transport intracellular protein transport positive regulation of neurotransmitter secretion positive regulation of neurotransmitter transport regulation of neurotransmitter transport positive regulation of synaptic transmission regulation of neurotransmitter secretion norepinephrine transport positive regulation of norepinephrine secretion organic cation transport norepinephrine secretion regulation of norepinephrine secretion	postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region membrane-bounded organelle intracellular anatomical structure nuclear membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope nuclear envelope organelle membrane cytoskeleton membraneless organelle intracellular membraneless organelle actin cytoskeleton actomyosin presynapse presynaptic membrane intracellular vesicle cytoplasmic vesicle secretory granule secretory vesicle cytoplasm vesicle glutamatergic synapse cell projection neuron projection plasma membrane bounded cell projection SNARE complex protein-containing complex synaptobrevin 2-SNAP-25-syntaxin-1a complex membrane protein complex synaptobrevin 2-SNAP-25-syntaxin-1a-complexin II complex transport vesicle membrane bounding membrane of organelle vesicle membrane synaptic vesicle synaptic vesicle membrane transport vesicle exocytic vesicle membrane cytoplasmic vesicle membrane exocytic vesicle axon synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex acrosomal vesicle presynaptic active zone membrane presynaptic active zone Schaffer collateral - CA1 synapse
C	SNAP-25 N-terminal SNARE motif	syntaxin-1 binding protein binding binding SNARE binding syntaxin binding SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity syntaxin-1 binding protein binding binding SNARE binding syntaxin binding SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity lipid binding calcium-dependent protein binding	cellular localization regulated exocytosis transport signaling synaptic vesicle cycle synaptic vesicle exocytosis membrane docking vesicle-mediated transport cell communication vesicle-mediated transport in synapse localization organelle localization by membrane tethering synaptic signaling secretion by cell organelle localization cellular localization regulated exocytosis transport signaling synaptic vesicle cycle synaptic vesicle exocytosis membrane docking vesicle-mediated transport cell communication vesicle-mediated transport in synapse localization organelle localization by membrane tethering synaptic signaling secretion by cell organelle localization signal release establishment of localization in cell vesicle docking involved in exocytosis trans-synaptic signaling regulation of biological process neurotransmitter secretion secretion biological regulation export from cell cell-cell signaling neurotransmitter transport synaptic vesicle docking establishment of localization chemical synaptic transmission signal release from synapse exocytosis anterograde trans-synaptic signaling vesicle docking exocytic process cellular process behavior multicellular organismal process locomotory behavior import into cell neurotransmitter uptake regulation of localization establishment of protein localization nitrogen compound transport regulation of cellular process regulation of hormone secretion regulation of protein localization regulation of peptide secretion hormone secretion protein localization to extracellular region peptide secretion regulation of secretion by cell amide transport intracellular protein localization regulation of biological quality regulation of peptide hormone secretion regulation of signaling regulation of transport regulation of hormone levels regulation of peptide transport regulation of establishment of protein localization establishment of protein localization to extracellular region regulation of protein transport protein secretion regulation of protein secretion regulation of secretion peptide transport protein transport regulation of insulin secretion peptide hormone secretion macromolecule localization hormone transport regulation of cell communication insulin secretion system process learning learning or memory nervous system process cognition associative learning membrane fusion organelle membrane fusion vesicle organization cellular component organization cellular component organization or biogenesis endomembrane system organization vesicle fusion to plasma membrane membrane organization synaptic vesicle fusion to presynaptic active zone membrane organelle fusion organelle organization synaptic vesicle membrane organization vesicle fusion establishment of organelle localization dense core granule localization presynaptic dense core vesicle exocytosis secretory granule localization calcium-ion regulated exocytosis vesicle localization calcium ion-regulated exocytosis of neurotransmitter establishment of vesicle localization neuronal dense core vesicle exocytosis dense core granule exocytosis synaptic vesicle priming cellular component biogenesis cellular component assembly protein-containing complex assembly protein-containing complex organization regulation of neuron projection development regulation of cellular component organization cellular developmental process cell projection organization cell development neuron projection development neurogenesis multicellular organism development neuron differentiation cell differentiation anatomical structure development system development developmental process plasma membrane bounded cell projection organization regulation of cell projection organization nervous system development generation of neurons neuron development regulation of plasma membrane bounded cell projection organization positive regulation of cell communication modulation of chemical synaptic transmission positive regulation of biological process long-term synaptic potentiation positive regulation of cellular process regulation of synaptic plasticity positive regulation of synaptic transmission regulation of trans-synaptic signaling positive regulation of signaling	membrane-bounded organelle intracellular anatomical structure tertiary granule membrane membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system tertiary granule intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle membrane-bounded organelle intracellular anatomical structure tertiary granule membrane membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system tertiary granule intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle organelle membrane secretory granule membrane specific granule membrane specific granule somatodendritic compartment cell periphery cell cortex photoreceptor inner segment cytosol SNARE complex protein-containing complex membrane protein complex plasma membrane presynapse synapse cell junction presynaptic membrane plasma membrane region synaptic membrane growth cone axon cell projection distal axon neuron projection plasma membrane bounded cell projection site of polarized growth glutamatergic synapse ribbon synapse Golgi apparatus subcompartment Golgi apparatus organelle subcompartment trans-Golgi network cytoskeleton membraneless organelle intracellular membraneless organelle perinuclear region of cytoplasm synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex transport vesicle synaptic vesicle exocytic vesicle
D	SNAP-25 C-terminal SNARE motif	syntaxin-1 binding protein binding binding SNARE binding syntaxin binding SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity syntaxin-1 binding protein binding binding SNARE binding syntaxin binding SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity lipid binding calcium-dependent protein binding	cellular localization regulated exocytosis transport signaling synaptic vesicle cycle synaptic vesicle exocytosis membrane docking vesicle-mediated transport cell communication vesicle-mediated transport in synapse localization organelle localization by membrane tethering synaptic signaling secretion by cell organelle localization cellular localization regulated exocytosis transport signaling synaptic vesicle cycle synaptic vesicle exocytosis membrane docking vesicle-mediated transport cell communication vesicle-mediated transport in synapse localization organelle localization by membrane tethering synaptic signaling secretion by cell organelle localization signal release establishment of localization in cell vesicle docking involved in exocytosis trans-synaptic signaling regulation of biological process neurotransmitter secretion secretion biological regulation export from cell cell-cell signaling neurotransmitter transport synaptic vesicle docking establishment of localization chemical synaptic transmission signal release from synapse exocytosis anterograde trans-synaptic signaling vesicle docking exocytic process cellular process behavior multicellular organismal process locomotory behavior import into cell neurotransmitter uptake regulation of localization establishment of protein localization nitrogen compound transport regulation of cellular process regulation of hormone secretion regulation of protein localization regulation of peptide secretion hormone secretion protein localization to extracellular region peptide secretion regulation of secretion by cell amide transport intracellular protein localization regulation of biological quality regulation of peptide hormone secretion regulation of signaling regulation of transport regulation of hormone levels regulation of peptide transport regulation of establishment of protein localization establishment of protein localization to extracellular region regulation of protein transport protein secretion regulation of protein secretion regulation of secretion peptide transport protein transport regulation of insulin secretion peptide hormone secretion macromolecule localization hormone transport regulation of cell communication insulin secretion system process learning learning or memory nervous system process cognition associative learning membrane fusion organelle membrane fusion vesicle organization cellular component organization cellular component organization or biogenesis endomembrane system organization vesicle fusion to plasma membrane membrane organization synaptic vesicle fusion to presynaptic active zone membrane organelle fusion organelle organization synaptic vesicle membrane organization vesicle fusion establishment of organelle localization dense core granule localization presynaptic dense core vesicle exocytosis secretory granule localization calcium-ion regulated exocytosis vesicle localization calcium ion-regulated exocytosis of neurotransmitter establishment of vesicle localization neuronal dense core vesicle exocytosis dense core granule exocytosis synaptic vesicle priming cellular component biogenesis cellular component assembly protein-containing complex assembly protein-containing complex organization regulation of neuron projection development regulation of cellular component organization cellular developmental process cell projection organization cell development neuron projection development neurogenesis multicellular organism development neuron differentiation cell differentiation anatomical structure development system development developmental process plasma membrane bounded cell projection organization regulation of cell projection organization nervous system development generation of neurons neuron development regulation of plasma membrane bounded cell projection organization positive regulation of cell communication modulation of chemical synaptic transmission positive regulation of biological process long-term synaptic potentiation positive regulation of cellular process regulation of synaptic plasticity positive regulation of synaptic transmission regulation of trans-synaptic signaling positive regulation of signaling	membrane-bounded organelle intracellular anatomical structure tertiary granule membrane membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system tertiary granule intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle membrane-bounded organelle intracellular anatomical structure tertiary granule membrane membrane intracellular vesicle intracellular membrane-bounded organelle endomembrane system tertiary granule intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle organelle membrane secretory granule membrane specific granule membrane specific granule somatodendritic compartment cell periphery cell cortex photoreceptor inner segment cytosol SNARE complex protein-containing complex membrane protein complex plasma membrane presynapse synapse cell junction presynaptic membrane plasma membrane region synaptic membrane growth cone axon cell projection distal axon neuron projection plasma membrane bounded cell projection site of polarized growth glutamatergic synapse ribbon synapse Golgi apparatus subcompartment Golgi apparatus organelle subcompartment trans-Golgi network cytoskeleton membraneless organelle intracellular membraneless organelle perinuclear region of cytoplasm synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex transport vesicle synaptic vesicle exocytic vesicle
E	Complexin I SNARE-complex binding region	protein binding binding SNARE binding lipid binding syntaxin-1 binding syntaxin binding	trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication cellular process regulation of localization regulated exocytosis membrane fusion synaptic vesicle cycle synaptic vesicle exocytosis vesicle-mediated transport vesicle-mediated transport in synapse vesicle organization localization establishment of localization in cell regulation of synaptic vesicle membrane organization endomembrane system organization vesicle fusion to plasma membrane neurotransmitter secretion neurotransmitter transport establishment of localization regulation of organelle organization organelle fusion signal release from synapse exocytosis vesicle fusion cellular localization regulation of cellular component organization transport organelle membrane fusion regulation of vesicle fusion cellular component organization secretion by cell signal release cellular component organization or biogenesis regulation of synaptic vesicle fusion to presynaptic active zone membrane membrane organization regulation of transport secretion export from cell synaptic vesicle fusion to presynaptic active zone membrane regulation of vesicle-mediated transport organelle organization synaptic vesicle membrane organization exocytic process establishment of protein localization nitrogen compound transport hormone secretion protein localization to extracellular region peptide secretion amide transport regulation of biological quality intracellular protein localization regulation of hormone levels establishment of protein localization to extracellular region protein secretion peptide transport protein transport peptide hormone secretion macromolecule localization hormone transport insulin secretion protein localization to synapse establishment of protein localization to postsynaptic membrane regulation of exocytic insertion of neurotransmitter receptor to postsynaptic membrane protein localization to cell periphery establishment of protein localization to membrane regulation of protein localization to cell periphery localization within membrane protein localization to membrane regulation of secretion exocytic insertion of neurotransmitter receptor to postsynaptic membrane regulation of postsynaptic membrane neurotransmitter receptor levels receptor localization to synapse regulation of protein localization neurotransmitter receptor transport to postsynaptic membrane neurotransmitter receptor transport to plasma membrane regulation of secretion by cell regulation of protein localization to membrane regulation of receptor localization to synapse protein localization to postsynaptic membrane neurotransmitter receptor transport regulation of establishment of protein localization regulation of protein transport protein-containing complex localization vesicle-mediated transport to the plasma membrane regulation of cellular localization regulation of exocytosis protein localization to postsynapse protein localization to cell junction	somatodendritic compartment cell body cellular anatomical structure perikaryon neuronal cell body axon synapse neuron projection axon terminus plasma membrane bounded cell projection presynapse cell projection distal axon calyx of Held somatodendritic compartment cell body cellular anatomical structure perikaryon neuronal cell body axon synapse neuron projection axon terminus plasma membrane bounded cell projection presynapse cell projection distal axon calyx of Held cell junction neuron projection terminus terminal bouton intracellular anatomical structure cytoplasm cytosol Schaffer collateral - CA1 synapse SNARE complex protein-containing complex membrane membrane protein complex dendrite dendritic tree synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex postsynapse glutamatergic synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR016444	Synaptobrevin/Vesicle-associated membrane protein	Family
A	IPR042855	v-SNARE, coiled-coil homology domain	Domain
A	IPR001388	Synaptobrevin-like	Family
B	IPR000727	Target SNARE coiled-coil homology domain	Domain
B	IPR006012	Syntaxin/epimorphin, conserved site	Conserved Site
B	IPR010989	SNARE	Homologous Superfamily
B	IPR006011	Syntaxin, N-terminal domain	Domain
B	IPR045242	Syntaxin	Family
C	IPR000727	Target SNARE coiled-coil homology domain	Domain
C	IPR039077	SNAP25, N-terminal SNARE motif, chordates	Domain
C	IPR000928	SNAP-25 domain	Domain
D	IPR000727	Target SNARE coiled-coil homology domain	Domain
D	IPR039077	SNAP25, N-terminal SNARE motif, chordates	Domain
D	IPR000928	SNAP-25 domain	Domain
E	IPR008849	Synaphin	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C	Pharos: P60880	congenital myasthenic syndrome congenital myasthenic syndrome 18 melancholia bipolar disorder schizoaffective disorder Neuromuscular Manifestations endogenous depression type 2 diabetes mellitus epilepsy primitive neuroectodermal tumor interstitial cystitis lung carcinoma malignant glioma adrenal cortex carcinoma astrocytic tumor congenital myasthenic syndrome congenital myasthenic syndrome 18 melancholia bipolar disorder schizoaffective disorder Neuromuscular Manifestations endogenous depression type 2 diabetes mellitus epilepsy primitive neuroectodermal tumor interstitial cystitis lung carcinoma malignant glioma adrenal cortex carcinoma astrocytic tumor cystic fibrosis oligodendroglioma depressive disorder Parkinson disease Pick disease glioblastoma large cell medulloblastoma malignant colon neoplasm malignant mesothelioma maturity-onset diabetes of the young atypical teratoid rhabdoid tumor botulism nasopharyngeal carcinoma osteosarcoma peripheral nervous system disease pilocytic astrocytoma intellectual disability schizophreniform disorder malignant ependymoma subependymal giant cell astrocytoma Alzheimer disease medulloblastoma neurotic disorder overactive bladder peripheral neuropathy
D	Pharos: P60880	congenital myasthenic syndrome congenital myasthenic syndrome 18 melancholia bipolar disorder schizoaffective disorder Neuromuscular Manifestations endogenous depression type 2 diabetes mellitus epilepsy primitive neuroectodermal tumor interstitial cystitis lung carcinoma malignant glioma adrenal cortex carcinoma astrocytic tumor congenital myasthenic syndrome congenital myasthenic syndrome 18 melancholia bipolar disorder schizoaffective disorder Neuromuscular Manifestations endogenous depression type 2 diabetes mellitus epilepsy primitive neuroectodermal tumor interstitial cystitis lung carcinoma malignant glioma adrenal cortex carcinoma astrocytic tumor cystic fibrosis oligodendroglioma depressive disorder Parkinson disease Pick disease glioblastoma large cell medulloblastoma malignant colon neoplasm malignant mesothelioma maturity-onset diabetes of the young atypical teratoid rhabdoid tumor botulism nasopharyngeal carcinoma osteosarcoma peripheral nervous system disease pilocytic astrocytoma intellectual disability schizophreniform disorder malignant ependymoma subependymal giant cell astrocytoma Alzheimer disease medulloblastoma neurotic disorder overactive bladder peripheral neuropathy

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D	OPM	Transmembrane	Bitopic proteins	SNARE complex	SNARE complex

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.