5KJ8 | pdb_00005kj8

Structure of the Ca2+-bound synaptotagmin-1 SNARE complex (long unit cell form) - from synchrotron diffraction

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
K	SCOP2B Superfamily	C2 domain (calcium/lipid-binding domain, calb)	8086451	3000965	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	C2 domain (calcium/lipid-binding domain, calb)	8040954	3000965	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	C2 domain (calcium/lipid-binding domain, calb)	8040954	3000965	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	C2 domain (calcium/lipid-binding domain, calb)	8086451	3000965	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	C2 domain (calcium/lipid-binding domain, calb)	8086451	3000965	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	C2 domain (calcium/lipid-binding domain, calb)	8040954	3000965	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	SNARE fusion complex	8043667	3001549	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	SNARE fusion complex	8043667	3001549	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	SNARE fusion complex	8043665	3001549	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	SNARE fusion complex	8043665	3001549	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	SNARE fusion complex	8079903	3001549	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	SNARE fusion complex	8079903	3001549	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
K	C2_2	e5kj8K1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: C2 domain (From Topology)	T: C2 domain	F: C2_2	ECOD (1.6)
F	C2_2	e5kj8F1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: C2 domain (From Topology)	T: C2 domain	F: C2_2	ECOD (1.6)
E	C2_2	e5kj8E2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: C2 domain (From Topology)	T: C2 domain	F: C2_2	ECOD (1.6)
G	Synaptobrevin	e5kj8G1	A: extended segments	X: Synaptobrevin (From Topology)	H: Synaptobrevin (From Topology)	T: Synaptobrevin	F: Synaptobrevin	ECOD (1.6)
A	Synaptobrevin	e5kj8A1	A: extended segments	X: Synaptobrevin (From Topology)	H: Synaptobrevin (From Topology)	T: Synaptobrevin	F: Synaptobrevin	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E, F, K	PF00168	C2 domain (C2)	C2 domain		Domain
B, H	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
A, G	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E, F, K	Synaptotagmin-1	protein binding binding SNARE binding syntaxin binding phospholipid binding lipid binding calcium-dependent phospholipid binding molecular sensor activity calcium ion sensor activity molecular function regulator activity metal ion sensor activity calmodulin binding syntaxin-3 binding identical protein binding protein binding binding SNARE binding syntaxin binding phospholipid binding lipid binding calcium-dependent phospholipid binding molecular sensor activity calcium ion sensor activity molecular function regulator activity metal ion sensor activity calmodulin binding syntaxin-3 binding identical protein binding modified amino acid binding ion binding anion binding phosphatidylserine binding small molecule binding clathrin binding cation binding calcium ion binding metal ion binding syntaxin-1 binding protein heterodimerization activity protein dimerization activity molecular condensate scaffold activity protein-macromolecule adaptor activity molecular adaptor activity phosphatidylinositol-4,5-bisphosphate binding phosphatidylinositol bisphosphate binding phosphatidylinositol phosphate binding phosphatidylinositol binding calcium-dependent protein binding low-density lipoprotein particle receptor binding signaling receptor binding lipoprotein particle receptor binding	regulation of localization regulation of cellular component organization regulation of cellular process transport membrane fusion organelle membrane fusion regulation of vesicle fusion vesicle-mediated transport vesicle organization cellular component organization localization cellular component organization or biogenesis membrane organization regulation of biological process regulation of localization regulation of cellular component organization regulation of cellular process transport membrane fusion organelle membrane fusion regulation of vesicle fusion vesicle-mediated transport vesicle organization cellular component organization localization cellular component organization or biogenesis membrane organization regulation of biological process regulation of transport biological regulation regulation of vesicle-mediated transport establishment of localization regulation of organelle organization organelle fusion organelle organization cellular process vesicle fusion regulated exocytosis secretion export from cell secretion by cell exocytosis calcium-ion regulated exocytosis response to stimulus response to metal ion response to chemical response to calcium ion positive regulation of cell communication synaptic vesicle cycle positive regulation of neurotransmitter secretion synaptic vesicle exocytosis positive regulation of calcium ion-dependent exocytosis of neurotransmitter cell communication vesicle-mediated transport in synapse positive regulation of regulated secretory pathway establishment of localization in cell calcium ion-regulated exocytosis of neurotransmitter trans-synaptic signaling positive regulation of neurotransmitter transport neurotransmitter secretion regulation of synaptic vesicle exocytosis positive regulation of synaptic transmission neurotransmitter transport regulation of secretion signal release from synapse regulation of trans-synaptic signaling cellular localization regulation of calcium ion-dependent exocytosis of neurotransmitter signaling modulation of chemical synaptic transmission regulation of calcium ion-dependent exocytosis positive regulation of biological process positive regulation of secretion by cell positive regulation of exocytosis regulation of regulated secretory pathway synaptic signaling regulation of secretion by cell positive regulation of secretion signal release positive regulation of cellular process regulation of signaling positive regulation of calcium ion-dependent exocytosis positive regulation of synaptic vesicle exocytosis regulation of neurotransmitter transport cell-cell signaling chemical synaptic transmission positive regulation of transport regulation of neurotransmitter secretion anterograde trans-synaptic signaling regulation of exocytosis regulation of cell communication positive regulation of signaling cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein heterooligomerization positive regulation of organelle organization positive regulation of cellular component organization positive regulation of vesicle fusion cellular response to stimulus cellular response to metal ion cellular response to chemical stimulus cellular response to calcium ion positive regulation of synaptic vesicle fusion to presynaptic active zone membrane regulation of synaptic vesicle membrane organization endomembrane system organization vesicle fusion to plasma membrane positive regulation of synaptic vesicle membrane organization calcium-dependent activation of synaptic vesicle fusion regulation of synaptic vesicle fusion to presynaptic active zone membrane synaptic vesicle fusion to presynaptic active zone membrane synaptic vesicle membrane organization exocytic process organelle localization by membrane tethering organelle localization vesicle docking membrane docking multicellular organismal process regulation of growth developmental growth cell projection organization neuron projection development regulation of cell morphogenesis positive regulation of developmental process multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation anatomical structure development positive regulation of developmental growth system development developmental process nervous system development developmental growth involved in morphogenesis generation of neurons positive regulation of dendrite extension cellular developmental process regulation of developmental process plasma membrane bounded cell projection morphogenesis cell development cell growth cell morphogenesis neurogenesis dendrite extension regulation of anatomical structure morphogenesis neuron projection extension regulation of developmental growth plasma membrane bounded cell projection organization developmental cell growth growth regulation of dendrite extension positive regulation of cell growth regulation of cell growth anatomical structure morphogenesis positive regulation of growth neuron development monoamine transport nitrogen compound transport regulation of catecholamine secretion organic hydroxy compound transport dopamine transport catecholamine transport dopamine secretion catecholamine secretion amine transport regulation of amine transport regulation of dopamine secretion positive regulation of amine transport positive regulation of catecholamine secretion positive regulation of dopamine secretion spontaneous synaptic transmission spontaneous neurotransmitter secretion synchronous neurotransmitter secretion synaptic transmission, glutamatergic regulation of synaptic transmission, glutamatergic fast, calcium ion-dependent exocytosis of neurotransmitter organelle assembly membraneless organelle assembly detection of stimulus detection of chemical stimulus detection of calcium ion	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane presynapse presynaptic active zone presynaptic membrane membrane-bounded organelle cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane presynapse presynaptic active zone presynaptic membrane membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle glutamatergic synapse cell projection neuron projection plasma membrane bounded cell projection Golgi apparatus transport vesicle membrane bounding membrane of organelle vesicle membrane synaptic vesicle synaptic vesicle membrane transport vesicle exocytic vesicle membrane cytoplasmic vesicle membrane organelle membrane exocytic vesicle axon axon terminus distal axon terminal bouton neuron projection terminus cytosolic region presynaptic cytosol cytosol neuron to neuron synapse hippocampal mossy fiber to CA3 synapse excitatory synapse postsynaptic density postsynaptic specialization asymmetric synapse chromaffin granule membrane chromaffin granule secretory granule membrane postsynaptic cytosol
D, J	Synaptosomal-associated protein 25	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 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 protein binding binding protein domain specific binding syntaxin-1 binding SNARE binding syntaxin binding transmembrane transporter binding lipid binding cytoskeletal protein binding myosin binding calcium-dependent protein binding	positive regulation of cell communication regulation of localization regulation of cellular process regulation of hormone secretion signaling transport positive regulation of biological process positive regulation of secretion by cell hormone secretion cell communication localization positive regulation of hormone secretion regulation of secretion by cell secretion by cell positive regulation of secretion positive regulation of cell communication regulation of localization regulation of cellular process regulation of hormone secretion signaling transport positive regulation of biological process positive regulation of secretion by cell hormone secretion cell communication localization positive regulation of hormone secretion regulation of secretion by cell secretion by cell positive regulation of secretion signal release regulation of biological quality positive regulation of cellular process regulation of signaling regulation of biological process regulation of transport secretion regulation of hormone levels biological regulation export from cell cell-cell signaling establishment of localization regulation of secretion positive regulation of transport regulation of cell communication hormone transport cellular process positive regulation of signaling establishment of protein localization regulation of protein localization macromolecule localization regulation of establishment of protein localization intracellular protein localization membrane organization protein-containing complex organization membrane fusion organelle membrane fusion vesicle-mediated transport 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 multicellular organismal process axonogenesis cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis neurogenesis multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation anatomical structure development system development developmental process plasma membrane bounded cell projection organization nervous system development axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron development cellular localization establishment of localization in cell intracellular transport endosomal transport regulated exocytosis synaptic vesicle cycle synaptic vesicle exocytosis vesicle-mediated transport in synapse synaptic signaling calcium-ion regulated exocytosis calcium ion-regulated exocytosis of neurotransmitter trans-synaptic signaling neurotransmitter secretion neurotransmitter transport chemical synaptic transmission signal release from synapse exocytosis anterograde trans-synaptic signaling regulation of cellular component organization cell junction assembly regulation of synapse structure or activity regulation of synapse assembly synapse organization regulation of cellular component biogenesis regulation of cell junction assembly regulation of synapse organization cell junction organization synapse assembly establishment of organelle localization dense core granule localization organelle localization presynaptic dense core vesicle exocytosis secretory granule localization vesicle localization establishment of vesicle localization neuronal dense core vesicle exocytosis dense core granule exocytosis synaptic vesicle priming exocytic process behavior locomotory behavior system process learning or memory long-term memory nervous system process cognition memory learning associative learning endomembrane system organization vesicle fusion to plasma membrane synaptic vesicle fusion to presynaptic active zone membrane synaptic vesicle membrane organization nitrogen compound transport positive regulation of establishment of protein localization positive regulation of insulin secretion regulation of peptide hormone secretion positive regulation of peptide hormone secretion establishment of protein localization to extracellular region protein secretion regulation of protein secretion positive regulation of protein localization regulation of peptide secretion protein localization to extracellular region positive regulation of protein transport peptide secretion amide transport positive regulation of peptide secretion regulation of peptide transport regulation of protein transport positive regulation of protein secretion peptide transport protein transport regulation of insulin secretion peptide hormone secretion insulin secretion regulation of neuron projection development regulation of cell projection organization regulation of plasma membrane bounded cell projection organization modulation of chemical synaptic transmission long-term synaptic potentiation regulation of synaptic plasticity positive regulation of synaptic transmission regulation of trans-synaptic signaling	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane photoreceptor inner segment intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane photoreceptor inner segment intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cell periphery presynapse synapse cell junction plasma membrane presynaptic membrane plasma membrane region synaptic membrane cytoplasm glutamatergic synapse neuron projection membrane-bounded organelle Golgi apparatus subcompartment Golgi apparatus organelle subcompartment intracellular membrane-bounded organelle endomembrane system 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 perinuclear region of cytoplasm somatodendritic compartment cell body neuronal cell body axon synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex transport vesicle intracellular vesicle cytoplasmic vesicle synaptic vesicle secretory vesicle vesicle exocytic vesicle actin-based cell projection filopodium growth cone distal axon axonal growth cone site of polarized growth cell cortex axon terminus terminal bouton neuron projection terminus ribbon synapse voltage-gated potassium channel complex plasma membrane protein complex potassium channel complex cation channel complex transporter complex transmembrane transporter complex monoatomic ion channel complex endosome extrinsic component of plasma membrane extrinsic component of synaptic membrane extrinsic component of presynaptic membrane extrinsic component of membrane BLOC complex intracellular protein-containing complex BLOC-1 complex
C, I	Synaptosomal-associated protein 25	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 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 protein binding binding protein domain specific binding syntaxin-1 binding SNARE binding syntaxin binding transmembrane transporter binding lipid binding cytoskeletal protein binding myosin binding calcium-dependent protein binding	positive regulation of cell communication regulation of localization regulation of cellular process regulation of hormone secretion signaling transport positive regulation of biological process positive regulation of secretion by cell hormone secretion cell communication localization positive regulation of hormone secretion regulation of secretion by cell secretion by cell positive regulation of secretion positive regulation of cell communication regulation of localization regulation of cellular process regulation of hormone secretion signaling transport positive regulation of biological process positive regulation of secretion by cell hormone secretion cell communication localization positive regulation of hormone secretion regulation of secretion by cell secretion by cell positive regulation of secretion signal release regulation of biological quality positive regulation of cellular process regulation of signaling regulation of biological process regulation of transport secretion regulation of hormone levels biological regulation export from cell cell-cell signaling establishment of localization regulation of secretion positive regulation of transport regulation of cell communication hormone transport cellular process positive regulation of signaling establishment of protein localization regulation of protein localization macromolecule localization regulation of establishment of protein localization intracellular protein localization membrane organization protein-containing complex organization membrane fusion organelle membrane fusion vesicle-mediated transport 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 multicellular organismal process axonogenesis cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis neurogenesis multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation anatomical structure development system development developmental process plasma membrane bounded cell projection organization nervous system development axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron development cellular localization establishment of localization in cell intracellular transport endosomal transport regulated exocytosis synaptic vesicle cycle synaptic vesicle exocytosis vesicle-mediated transport in synapse synaptic signaling calcium-ion regulated exocytosis calcium ion-regulated exocytosis of neurotransmitter trans-synaptic signaling neurotransmitter secretion neurotransmitter transport chemical synaptic transmission signal release from synapse exocytosis anterograde trans-synaptic signaling regulation of cellular component organization cell junction assembly regulation of synapse structure or activity regulation of synapse assembly synapse organization regulation of cellular component biogenesis regulation of cell junction assembly regulation of synapse organization cell junction organization synapse assembly establishment of organelle localization dense core granule localization organelle localization presynaptic dense core vesicle exocytosis secretory granule localization vesicle localization establishment of vesicle localization neuronal dense core vesicle exocytosis dense core granule exocytosis synaptic vesicle priming exocytic process behavior locomotory behavior system process learning or memory long-term memory nervous system process cognition memory learning associative learning endomembrane system organization vesicle fusion to plasma membrane synaptic vesicle fusion to presynaptic active zone membrane synaptic vesicle membrane organization nitrogen compound transport positive regulation of establishment of protein localization positive regulation of insulin secretion regulation of peptide hormone secretion positive regulation of peptide hormone secretion establishment of protein localization to extracellular region protein secretion regulation of protein secretion positive regulation of protein localization regulation of peptide secretion protein localization to extracellular region positive regulation of protein transport peptide secretion amide transport positive regulation of peptide secretion regulation of peptide transport regulation of protein transport positive regulation of protein secretion peptide transport protein transport regulation of insulin secretion peptide hormone secretion insulin secretion regulation of neuron projection development regulation of cell projection organization regulation of plasma membrane bounded cell projection organization modulation of chemical synaptic transmission long-term synaptic potentiation regulation of synaptic plasticity positive regulation of synaptic transmission regulation of trans-synaptic signaling	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane photoreceptor inner segment intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane photoreceptor inner segment intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cell periphery presynapse synapse cell junction plasma membrane presynaptic membrane plasma membrane region synaptic membrane cytoplasm glutamatergic synapse neuron projection membrane-bounded organelle Golgi apparatus subcompartment Golgi apparatus organelle subcompartment intracellular membrane-bounded organelle endomembrane system 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 perinuclear region of cytoplasm somatodendritic compartment cell body neuronal cell body axon synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex transport vesicle intracellular vesicle cytoplasmic vesicle synaptic vesicle secretory vesicle vesicle exocytic vesicle actin-based cell projection filopodium growth cone distal axon axonal growth cone site of polarized growth cell cortex axon terminus terminal bouton neuron projection terminus ribbon synapse voltage-gated potassium channel complex plasma membrane protein complex potassium channel complex cation channel complex transporter complex transmembrane transporter complex monoatomic ion channel complex endosome extrinsic component of plasma membrane extrinsic component of synaptic membrane extrinsic component of presynaptic membrane extrinsic component of membrane BLOC complex intracellular protein-containing complex BLOC-1 complex
B, H	Syntaxin-1A	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
A, G	Vesicle-associated membrane protein 3	syntaxin-1 binding protein binding binding SNARE binding syntaxin binding SNAP receptor activity protein-macromolecule adaptor activity molecular adaptor activity	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 cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis regulated exocytosis secretion export from cell secretion by cell exocytosis calcium-ion regulated exocytosis membrane organization membrane fusion organelle membrane fusion vesicle organization organelle fusion organelle organization SNARE complex assembly vesicle fusion cell adhesion substrate adhesion-dependent cell spreading cell-substrate adhesion establishment of localization in cell regulation of signaling regulation of biological process regulation of cellular process signaling regulation of receptor recycling biological regulation positive regulation of biological process regulation of macromolecule metabolic process receptor recycling positive regulation of metabolic process receptor metabolic process positive regulation of receptor recycling positive regulation of macromolecule metabolic process metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process positive regulation of signaling biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response response to type II interferon response to cytokine defense response to symbiont response to external stimulus cellular response to type II interferon response to biotic stimulus response to peptide response to chemical immune system process defense response to other organism response to stress innate immune response cellular response to cytokine stimulus response to external biotic stimulus intracellular transport endosomal transport cytosolic transport retrograde transport, endosome to Golgi regulation of localization regulation of transport negative regulation of biological process negative regulation of transport regulation of secretion negative regulation of secretion regulation of secretion by cell negative regulation of cellular process negative regulation of secretion by cell	cell periphery cellular anatomical structure apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cytoplasmic vesicle organelle cell periphery cellular anatomical structure apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cytoplasmic vesicle organelle clathrin-coated vesicle coated vesicle cytoplasm vesicle cell surface cytosol SNARE complex protein-containing complex membrane protein complex phagocytic vesicle endocytic vesicle endomembrane system secretory granule secretory vesicle coated vesicle membrane cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane organelle membrane clathrin-coated vesicle membrane cell projection neuron projection plasma membrane bounded cell projection early endosome endosome endosome membrane recycling endosome recycling endosome membrane early endosome membrane perinuclear region of cytoplasm synapse transport vesicle membrane presynapse synaptic vesicle synaptic vesicle membrane cell junction transport vesicle exocytic vesicle membrane exocytic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E, F, K	IPR000008	C2 domain	Domain
E, F, K	IPR001565	Synaptotagmin	Domain
E, F, K	IPR035892	C2 domain superfamily	Homologous Superfamily
D, J	IPR000727	Target SNARE coiled-coil homology domain	Domain
D, J	IPR039077	SNAP25, N-terminal SNARE motif, chordates	Domain
D, J	IPR000928	SNAP-25 domain	Domain
C, I	IPR000727	Target SNARE coiled-coil homology domain	Domain
C, I	IPR039077	SNAP25, N-terminal SNARE motif, chordates	Domain
C, I	IPR000928	SNAP-25 domain	Domain
B, H	IPR000727	Target SNARE coiled-coil homology domain	Domain
B, H	IPR006012	Syntaxin/epimorphin, conserved site	Conserved Site
B, H	IPR010989	SNARE	Homologous Superfamily
B, H	IPR006011	Syntaxin, N-terminal domain	Domain
B, H	IPR045242	Syntaxin	Family
A, G	IPR001388	Synaptobrevin-like	Family
A, G	IPR016444	Synaptobrevin/Vesicle-associated membrane protein	Family
A, G	IPR042855	v-SNARE, coiled-coil homology domain	Domain

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.