Annotations: 2KXP

Solution NMR structure of V-1 bound to capping protein (CP)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C	d2kxpc_	Alpha and beta proteins (a+b)	beta-hairpin-alpha-hairpin repeat	Ankyrin repeat	Ankyrin repeat	Myotrophin	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d2kxpb_	Multi-domain proteins (alpha and beta)	Subunits of heterodimeric actin filament capping protein Capz	Subunits of heterodimeric actin filament capping protein Capz	Capz beta-1 subunit	Capz beta-1 subunit	bantam,chickens (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)
A	d2kxpa_	Multi-domain proteins (alpha and beta)	Subunits of heterodimeric actin filament capping protein Capz	Subunits of heterodimeric actin filament capping protein Capz	Capz alpha-1 subunit	Capz alpha-1 subunit	bantam,chickens (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2 Family	Ankyrin repeat	8081102	4000366	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	Ankyrin repeat	8081103	3000154	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Subunits of heterodimeric actin filament capping protein Capz	8032215	3001499	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Subunits of heterodimeric actin filament capping protein Capz	8032214	3001499	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)
C	PBP	e2kxpC1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Immunoglobulin-related	T: PEBP-like	F: PBP	ECOD (v294.1)
B	FmrO	e2kxpB1	A: a/b three-layered sandwiches	X: Anticodon-binding domain of Class II aaRS	H: Anticodon-binding domain of Class II aaRS	T: Anticodon-binding domain of Class II aaRS	F: FmrO	ECOD (v294.1)
A	PBP	e2kxpA1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Immunoglobulin-related	T: PEBP-like	F: PBP	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	1.25.40.20	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Ankyrin repeat-containing domain	CATH (4.3.0)
B	1.20.58.570	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
B	3.90.1150.210	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	F-actin capping protein, beta subunit	CATH (4.3.0)
B	6.10.250.30	Special	Helix non-globular	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Capz alpha-1 subunit	CATH (4.3.0)
A	3.30.1140.60	Alpha Beta	2-Layer Sandwich	Ribosomal protein S3 C-terminal domain	F-actin capping protein, alpha subunit	CATH (4.3.0)
A	3.90.1150.210	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	F-actin capping protein, beta subunit	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C	PF12796	Ankyrin repeats (3 copies) (Ank_2)	Ankyrin repeats (3 copies)	-	Repeat
B	PF01115	F-actin capping protein, beta subunit (F_actin_cap_B)	F-actin capping protein, beta subunit	-	Family
A	PF01267	F-actin capping protein alpha subunit (F-actin_cap_A)	F-actin capping protein alpha subunit	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C	Myotrophin	sequence-specific DNA binding DNA binding binding nucleic acid binding	regulation of growth regulation of biological process regulation of cellular process regulation of cellular component organization biological regulation growth positive regulation of biological process positive regulation of cell growth regulation of cell growth cell growth cellular component organization positive regulation of growth cellular process cellular component organization or biogenesis regulation of growth regulation of biological process regulation of cellular process regulation of cellular component organization biological regulation growth positive regulation of biological process positive regulation of cell growth regulation of cell growth cell growth cellular component organization positive regulation of growth cellular process cellular component organization or biogenesis positive regulation of cellular process positive regulation of protein metabolic process regulation of protein metabolic process primary metabolic process regulation of macromolecule metabolic process regulation of primary metabolic process positive regulation of metabolic process metabolic process positive regulation of macromolecule metabolic process protein metabolic process macromolecule metabolic process regulation of metabolic process regulation of biosynthetic process positive regulation of macromolecule biosynthetic process macromolecule biosynthetic process biosynthetic process positive regulation of biosynthetic process regulation of macromolecule biosynthetic process muscle hypertrophy regulation of muscle adaptation multicellular organismal process system process positive regulation of cardiac muscle hypertrophy response to stimulus regulation of system process striated muscle hypertrophy regulation of muscle system process muscle system process regulation of cardiac muscle hypertrophy regulation of muscle hypertrophy muscle adaptation regulation of response to stimulus positive regulation of muscle hypertrophy cardiac muscle hypertrophy positive regulation of multicellular organismal process regulation of multicellular organismal process regulation of cellular component size regulation of biological quality regulation of cell size regulation of anatomical structure size negative regulation of biological process protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization cellular component biogenesis regulation of actin filament depolymerization actin filament capping cellular component assembly actin filament-based process negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization cellular component disassembly barbed-end actin filament capping negative regulation of cellular component organization actin filament 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 barbed-end actin filament capping supramolecular fiber organization regulation of cytoskeleton organization regulation of actin filament-based process regulation of protein-containing complex assembly negative regulation of protein-containing complex disassembly protein-containing complex assembly negative regulation of cellular process negative regulation of protein polymerization regulation of actin filament polymerization protein polymerization actin polymerization or depolymerization regulation of actin filament organization actin cytoskeleton organization actin filament polymerization protein-containing complex organization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization regulation of cellular component biogenesis organelle organization negative regulation of organelle organization regulation of actin filament length regulation of actin cytoskeleton organization negative regulation of actin filament depolymerization protein depolymerization cytoskeleton organization	intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle F-actin capping protein complex intracellular membraneless organelle actin cytoskeleton cytoplasm cytosol perinuclear region of cytoplasm axon intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle F-actin capping protein complex intracellular membraneless organelle actin cytoskeleton cytoplasm cytosol perinuclear region of cytoplasm axon cell projection neuron projection plasma membrane bounded cell projection membrane-bounded organelle nucleus intracellular membrane-bounded organelle
B	F-actin-capping protein subunit beta isoforms 1 and 2	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding	lamellipodium assembly plasma membrane bounded cell projection organization cell projection organization plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis cellular component assembly lamellipodium organization cellular process cellular component organization or biogenesis cell projection assembly developmental process anatomical structure morphogenesis regulation of biological process lamellipodium assembly plasma membrane bounded cell projection organization cell projection organization plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis cellular component assembly lamellipodium organization cellular process cellular component organization or biogenesis cell projection assembly developmental process anatomical structure morphogenesis regulation of biological process regulation of developmental process anatomical structure development biological regulation cell morphogenesis regulation of cell morphogenesis regulation of anatomical structure morphogenesis filopodium assembly regulation of cellular component organization regulation of cellular process negative regulation of filopodium assembly negative regulation of biological process regulation of filopodium assembly negative regulation of plasma membrane bounded cell projection assembly negative regulation of cellular process negative regulation of cell projection organization negative regulation of cellular component organization regulation of cell projection organization regulation of cell projection assembly regulation of cellular component biogenesis regulation of plasma membrane bounded cell projection assembly regulation of plasma membrane bounded cell projection organization organelle organization cytoskeleton organization regulation of lamellipodium assembly regulation of lamellipodium organization regulation of cellular component size protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization actin filament capping actin filament-based process regulation of biological quality negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization cellular component disassembly barbed-end actin filament capping actin filament 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 supramolecular fiber organization regulation of cytoskeleton organization regulation of actin filament-based process regulation of protein-containing complex assembly negative regulation of protein-containing complex disassembly protein-containing complex assembly negative regulation of protein polymerization regulation of actin filament polymerization actin polymerization or depolymerization protein polymerization regulation of actin filament organization actin cytoskeleton organization actin filament polymerization protein-containing complex organization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization negative regulation of organelle organization regulation of actin filament length regulation of actin cytoskeleton organization negative regulation of actin filament depolymerization protein depolymerization regulation of anatomical structure size	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium protein-containing complex intracellular anatomical structure WASH complex cytoplasm membrane intracellular membraneless organelle Z disc sarcomere intracellular organelle cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium protein-containing complex intracellular anatomical structure WASH complex cytoplasm membrane intracellular membraneless organelle Z disc sarcomere intracellular organelle I band organelle membraneless organelle contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex cytosol apical part of cell cluster of actin-based cell projections brush border sperm head-tail coupling apparatus cytoskeleton F-actin capping protein complex actin cytoskeleton postsynaptic density postsynapse neuron to neuron synapse postsynaptic specialization synapse cell junction asymmetric synapse Schaffer collateral - CA1 synapse cell cortex cortical cytoskeleton cell periphery
A	F-actin-capping protein subunit alpha-1	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding	cellular component organization cellular component biogenesis cell junction organization cellular component assembly cell junction assembly cellular process cellular component organization or biogenesis regulation of cellular process regulation of cellular component size negative regulation of biological process protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization cellular component organization cellular component biogenesis cell junction organization cellular component assembly cell junction assembly cellular process cellular component organization or biogenesis regulation of cellular process regulation of cellular component size negative regulation of biological process protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization actin filament capping actin filament-based process regulation of biological quality negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization cellular component disassembly regulation of biological process barbed-end actin filament capping negative regulation of cellular component organization actin filament 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 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 actin polymerization or depolymerization protein polymerization regulation of actin filament organization actin cytoskeleton organization actin filament polymerization protein-containing complex organization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization biological regulation regulation of cellular component biogenesis organelle organization negative regulation of organelle organization regulation of actin filament length regulation of actin cytoskeleton organization negative regulation of actin filament depolymerization protein depolymerization cytoskeleton organization regulation of anatomical structure size	protein-containing complex cellular anatomical structure intracellular anatomical structure WASH complex cytoplasm intracellular membraneless organelle Z disc sarcomere intracellular organelle I band organelle membraneless organelle contractile muscle fiber supramolecular fiber protein-containing complex cellular anatomical structure intracellular anatomical structure WASH complex cytoplasm intracellular membraneless organelle Z disc sarcomere intracellular organelle I band organelle membraneless organelle contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex cytoskeleton F-actin capping protein complex actin cytoskeleton cytosol cell periphery plasma membrane membrane cell cortex cortical cytoskeleton

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR002110	Ankyrin repeat	Repeat
C	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
B	IPR001698	F-actin-capping protein subunit beta	Family
B	IPR019771	F-actin capping protein, beta subunit, conserved site	Conserved Site
B	IPR043175	F-actin-capping protein subunit beta, N-terminal domain	Homologous Superfamily
B	IPR037282	F-actin-capping protein subunit alpha/beta	Homologous Superfamily
B	IPR042276	F-actin-capping protein subunit alpha/beta, domain 2	Homologous Superfamily
A	IPR002189	F-actin-capping protein subunit alpha	Family
A	IPR042489	F-actin capping protein, alpha subunit, domain 1	Homologous Superfamily
A	IPR037282	F-actin-capping protein subunit alpha/beta	Homologous Superfamily
A	IPR017865	F-actin capping protein, alpha subunit, conserved site	Conserved Site
A	IPR042276	F-actin-capping protein subunit alpha/beta, domain 2	Homologous Superfamily

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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.