Annotations: 1IZN

Crystal Structure of Actin Filament Capping Protein CapZ

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)
B	d1iznb_	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	chicken (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)
D	d1iznd_	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	chicken (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)
C	d1iznc_	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	chicken (Gallus gallus ) [TaxId: 9031 ],	SCOPe (2.08)
A	d1izna_	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	chicken (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)
B	SCOP2 Family	Capz beta-1 subunit	8019835	4003781	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Subunits of heterodimeric actin filament capping protein Capz	8032215	3001499	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	Subunits of heterodimeric actin filament capping protein Capz	8032215	3001499	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Subunits of heterodimeric actin filament capping protein Capz	8032214	3001499	SCOP2B (2022-06-29)
A	SCOP2 Family	Capz alpha-1 subunit	8019834	4003791	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Subunits of heterodimeric actin filament capping protein Capz	8032214	3001499	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	TrmK	e1iznB1	A: alpha arrays	X: Ribosomal protein L19 (L19e) C-terminal domain	H: Ribosomal protein L19 (L19e) C-terminal domain	T: Ribosomal protein L19 (L19e) C-terminal domain	F: TrmK	ECOD (v295)
D	TrmK	e1iznD1	A: alpha arrays	X: Ribosomal protein L19 (L19e) C-terminal domain	H: Ribosomal protein L19 (L19e) C-terminal domain	T: Ribosomal protein L19 (L19e) C-terminal domain	F: TrmK	ECOD (v295)
C	DUF309	e1iznC1	A: alpha arrays	X: Urease, gamma-subunit	H: Flavivirus capsid protein C	T: Flavivirus capsid protein C	F: DUF309	ECOD (v295)
C	OsmC	e1iznC2	A: alpha arrays	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: OsmC	ECOD (v295)
C	C1_1	e1iznC3	A: alpha arrays	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: C1_1	ECOD (v295)
A	F-actin_cap_A	e1iznA1	A: alpha bundles	X: alpha-helical domain in subunits of heterodimeric actin filament capping protein Capz	H: alpha-helical domain in subunits of heterodimeric actin filament capping protein Capz	T: alpha-helical domain in subunits of heterodimeric actin filament capping protein Capz	F: F-actin_cap_A	ECOD (v295)
A	F-actin_cap_A	e1iznA2	A: a+b two layers	X: a+b domain in Capz	H: a+b domain in Capz	T: a+b domain in Capz	F: F-actin_cap_A	ECOD (v295)
A	F-actin_cap_A	e1iznA3	A: few secondary structure elements	X: beta-barrel domain in Capz	H: beta-barrel domain in Capz	T: beta-barrel domain in Capz	F: F-actin_cap_A	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
D	1.20.58.570	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
D	3.90.1150.210	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	F-actin capping protein, beta subunit	CATH (4.3.0)
D	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)
C	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)
C	3.90.1150.210	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	F-actin capping protein, beta 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
B, D	PF01115	F-actin capping protein, beta subunit (F_actin_cap_B)	F-actin capping protein, beta subunit	-	Family
A, C	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
B, D	CapZ beta-1 subunit	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding	filopodium assembly regulation of cellular component organization regulation of cellular process cell projection organization negative regulation of filopodium assembly negative regulation of biological process regulation of filopodium assembly plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis negative regulation of plasma membrane bounded cell projection assembly cellular component assembly negative regulation of cellular process cellular component organization or biogenesis filopodium assembly regulation of cellular component organization regulation of cellular process cell projection organization negative regulation of filopodium assembly negative regulation of biological process regulation of filopodium assembly plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis negative regulation of plasma membrane bounded cell projection assembly cellular component assembly negative regulation of cellular process cellular component organization or biogenesis negative regulation of cell projection organization regulation of biological process plasma membrane bounded cell projection organization negative regulation of cellular component organization regulation of cell projection organization regulation of cell projection assembly biological regulation regulation of cellular component biogenesis regulation of plasma membrane bounded cell projection assembly cellular process cell projection assembly regulation of plasma membrane bounded cell projection organization developmental process anatomical structure morphogenesis anatomical structure development cell morphogenesis lamellipodium assembly regulation of lamellipodium assembly regulation of lamellipodium organization 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 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	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 cytoskeleton F-actin capping protein complex actin cytoskeleton cytosol postsynaptic density postsynapse neuron to neuron synapse postsynaptic specialization synapse cell junction asymmetric synapse Schaffer collateral - CA1 synapse apical part of cell cluster of actin-based cell projections brush border sperm head-tail coupling apparatus cell cortex cortical cytoskeleton cell periphery
A, C	CapZ alpha-1 subunit	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
B, D	IPR019771	F-actin capping protein, beta subunit, conserved site	Conserved Site
B, D	IPR001698	F-actin-capping protein subunit beta	Family
B, D	IPR043175	F-actin-capping protein subunit beta, N-terminal domain	Homologous Superfamily
B, D	IPR037282	F-actin-capping protein subunit alpha/beta	Homologous Superfamily
B, D	IPR042276	F-actin-capping protein subunit alpha/beta, domain 2	Homologous Superfamily
A, C	IPR002189	F-actin-capping protein subunit alpha	Family
A, C	IPR042489	F-actin capping protein, alpha subunit, domain 1	Homologous Superfamily
A, C	IPR037282	F-actin-capping protein subunit alpha/beta	Homologous Superfamily
A, C	IPR017865	F-actin capping protein, alpha subunit, conserved site	Conserved Site
A, C	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.