Annotations: 1BYN

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1byna_	All beta proteins	C2 domain-like	C2 domain (Calcium/lipid-binding domain, CaLB)	Synaptotagmin-like (S variant)	Synaptogamin I	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	C2 domain (calcium/lipid-binding domain, calb)	8086451	3000965	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)
A	C2_2	e1bynA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: C2 domain (From Topology)	T: C2 domain	F: C2_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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	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	PROTEIN (SYNAPTOTAGMIN I)	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 phosphatidylserine binding clathrin binding cation binding ion binding calcium ion binding metal ion binding small molecule 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 anion 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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000008	C2 domain	Domain
A	IPR001565	Synaptotagmin	Domain
A	IPR035892	C2 domain superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Monotopic/peripheral	All beta monotopic/peripheral	C2 domain	C2 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.