Annotations: 1SVQ

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1svqa_	Alpha and beta proteins (a+b)	Gelsolin-like	Actin depolymerizing proteins	Gelsolin-like	Severin, domain 2	(Dictyostelium discoideum ) [TaxId: 44689 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Actin depolymerizing proteins	8036055	3000430	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	NTP_transf_2, PAP_NTPase	e1svqA1	A: alpha bundles	X: EGF-like	H: LDL receptor-like module	T: LDL receptor-like module	F: NTP_transf_2, PAP_NTPase	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.20.10	Alpha Beta	3-Layer(aba) Sandwich	Severin	Severin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00626	Gelsolin repeat (Gelsolin)	Gelsolin repeat		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	SEVERIN	ion binding binding phosphatidylinositol-4,5-bisphosphate binding anion binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding small molecule binding cation binding calcium ion binding metal ion binding cytoskeletal protein binding ion binding binding phosphatidylinositol-4,5-bisphosphate binding anion binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding small molecule binding cation binding calcium ion binding metal ion binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding actin filament binding calcium-dependent protein binding protein-containing complex destabilizing activity actin filament severing activity actin monomer binding	actin filament severing actin filament-based process cellular process cellular component disassembly actin polymerization or depolymerization actin cytoskeleton organization protein-containing complex organization actin filament organization protein-containing complex disassembly actin filament depolymerization cellular component organization organelle organization cellular component organization or biogenesis supramolecular fiber organization actin filament severing actin filament-based process cellular process cellular component disassembly actin polymerization or depolymerization actin cytoskeleton organization protein-containing complex organization actin filament organization protein-containing complex disassembly actin filament depolymerization cellular component organization organelle organization cellular component organization or biogenesis supramolecular fiber organization protein depolymerization cytoskeleton organization actin filament fragmentation regulation of cellular process regulation of cellular component size negative regulation of biological process regulation of protein-containing complex disassembly regulation of actin filament depolymerization cellular component biogenesis actin filament capping cellular component assembly regulation of biological quality negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization regulation of biological process barbed-end actin filament capping negative regulation of cellular component organization regulation of organelle organization negative regulation of protein depolymerization negative regulation of protein-containing complex assembly regulation of protein polymerization regulation of supramolecular fiber organization regulation of cytoskeleton organization regulation of cellular component organization regulation of actin filament-based process regulation of protein-containing complex assembly negative regulation of protein-containing complex disassembly negative regulation of cellular process protein-containing complex assembly negative regulation of protein polymerization regulation of actin filament polymerization protein polymerization regulation of actin filament organization actin filament polymerization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization biological regulation regulation of cellular component biogenesis negative regulation of organelle organization regulation of actin filament length regulation of actin cytoskeleton organization negative regulation of actin filament depolymerization regulation of anatomical structure size actin filament bundle organization actin filament bundle assembly	intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton membrane-bounded organelle intracellular vesicle phagocytic vesicle intracellular membrane-bounded organelle cytoplasmic vesicle cytoplasm intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton membrane-bounded organelle intracellular vesicle phagocytic vesicle intracellular membrane-bounded organelle cytoplasmic vesicle cytoplasm vesicle endocytic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR007123	Gelsolin-like domain	Domain
A	IPR029006	ADF-H/Gelsolin-like domain superfamily	Homologous Superfamily
A	IPR007122	Villin/Gelsolin	Family

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.