Annotations: 2Q3X

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	C2 domain (calcium/lipid-binding domain, calb)	8072603	3000965	SCOP2B (2022-06-29)
A	SCOP2 Family	Synaptotagmin-like (S variant)	8072602	4002234	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	C2 domain (calcium/lipid-binding domain, calb)	8072603	3000965	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PK_Tyr_Ser-Thr	e2q3xB1	A: a/b three-layered sandwiches	X: HTH	H: Nudix	T: Nudix	F: PK_Tyr_Ser-Thr	ECOD (v294.1)
A	SspB	e2q3xA1	A: a/b three-layered sandwiches	X: Profilin-like	H: sensor domains	T: sensor domains	F: SspB	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.60.40.150	Mainly Beta	Sandwich	Immunoglobulin-like	C2 domain	CATH (4.3.0)
A	2.60.40.150	Mainly Beta	Sandwich	Immunoglobulin-like	C2 domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00168	C2 domain (C2)	C2 domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Regulating synaptic membrane exocytosis protein 1	small GTPase binding protein binding binding enzyme binding GTPase binding SH3 domain binding protein domain specific binding transmembrane transporter binding kinase binding protein kinase binding structural constituent of presynaptic active zone structural molecule activity structural constituent of synapse cation binding small GTPase binding protein binding binding enzyme binding GTPase binding SH3 domain binding protein domain specific binding transmembrane transporter binding kinase binding protein kinase binding structural constituent of presynaptic active zone structural molecule activity structural constituent of synapse cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule 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 cellular response to stimulus positive regulation of cell communication multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process positive regulation of signal transduction response to stimulus modulation of chemical synaptic transmission regulation of system process positive regulation of excitatory postsynaptic potential positive regulation of biological process regulation of signal transduction chemical synaptic transmission, postsynaptic positive regulation of response to stimulus modulation of excitatory postsynaptic potential regulation of multicellular organismal process signal transduction regulation of biological quality positive regulation of cellular process regulation of signaling cell surface receptor signaling pathway nervous system process regulation of nervous system process regulation of trans-synaptic signaling regulation of response to stimulus regulation of cell communication excitatory postsynaptic potential regulation of membrane potential positive regulation of signaling cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis developmental process cellular developmental process cell differentiation positive regulation of inhibitory postsynaptic potential positive regulation of nervous system process modulation of inhibitory postsynaptic potential inhibitory postsynaptic potential positive regulation of multicellular organismal process regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of organelle organization regulation of localization membrane fusion vesicle organization 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 regulation of organelle organization organelle fusion positive regulation of vesicle fusion vesicle fusion regulation of cellular component organization positive regulation of cellular component organization organelle membrane fusion regulation of vesicle fusion membrane organization regulation of synaptic vesicle fusion to presynaptic active zone membrane regulation of transport synaptic vesicle fusion to presynaptic active zone membrane regulation of vesicle-mediated transport organelle organization positive regulation of transport synaptic vesicle membrane organization spontaneous synaptic transmission spontaneous neurotransmitter secretion regulation of neuronal synaptic plasticity regulation of synaptic plasticity regulation of long-term neuronal synaptic plasticity establishment of protein localization intracellular transport protein transport macromolecule localization intracellular protein localization intracellular protein transport calcium-ion regulated exocytosis calcium ion-regulated exocytosis of neurotransmitter sexual reproduction reproductive process fertilization acrosome reaction acrosomal vesicle exocytosis single fertilization positive regulation of synaptic vesicle priming regulation of synaptic vesicle priming synaptic vesicle priming regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly positive regulation of cellular component biogenesis regulation of cellular component biogenesis regulation of calcium-dependent activation of synaptic vesicle fusion calcium-dependent activation of synaptic vesicle fusion establishment of organelle localization dense core granule localization presynaptic dense core vesicle exocytosis secretory granule localization vesicle localization establishment of vesicle localization neuronal dense core vesicle exocytosis dense core granule exocytosis long-term synaptic potentiation positive regulation of synaptic transmission regulation of regulated secretory pathway regulation of secretion by cell regulation of neurotransmitter transport regulation of synaptic vesicle exocytosis regulation of secretion regulation of neurotransmitter secretion regulation of exocytosis 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 anatomical structure development positive regulation of developmental growth system development nervous system development developmental growth involved in morphogenesis generation of neurons positive regulation of dendrite extension 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	membrane-bounded organelle cellular anatomical structure organelle vesicle cell periphery plasma membrane membrane presynapse synapse cell junction presynaptic membrane plasma membrane region synaptic membrane cell cortex membrane-bounded organelle cellular anatomical structure organelle vesicle cell periphery plasma membrane membrane presynapse synapse cell junction presynaptic membrane plasma membrane region synaptic membrane cell cortex intracellular anatomical structure cytoplasmic region presynaptic active zone cytoplasmic component cell cortex region cytoplasm presynaptic active zone GABA-ergic synapse glutamatergic synapse extrinsic component of plasma membrane presynaptic active zone membrane extrinsic component of presynaptic active zone membrane extrinsic component of synaptic membrane extrinsic component of presynaptic membrane extrinsic component of membrane postsynaptic density postsynapse neuron to neuron synapse postsynaptic specialization asymmetric synapse inhibitory synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR054386	RIM, zinc finger	Domain
A, B	IPR017455	Zinc finger, FYVE-related	Domain
A, B	IPR000008	C2 domain	Domain
A, B	IPR010911	Rab-binding domain	Domain
A, B	IPR011011	Zinc finger, FYVE/PHD-type	Homologous Superfamily
A, B	IPR013083	Zinc finger, RING/FYVE/PHD-type	Homologous Superfamily
A, B	IPR036034	PDZ superfamily	Homologous Superfamily
A, B	IPR039032	Rim-like	Family
A, B	IPR035892	C2 domain superfamily	Homologous Superfamily
A, B	IPR001478	PDZ 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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.