Annotations: 8ZBK

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
H [auth R]	ABC_tran+ABC_membrane	e8zbkR01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: ABC_tran+ABC_membrane	ECOD (v294.1)
B	ABC_tran+ABC_membrane	e8zbkB01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: ABC_tran+ABC_membrane	ECOD (v294.1)
A	ABC_tran+ABC_membrane	e8zbkA01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: ABC_tran+ABC_membrane	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
H [auth R], I [auth T], J [auth S], K [auth U]	PF00261	Tropomyosin (Tropomyosin)	Tropomyosin	-	Coiled-coil
B, C [auth I], D [auth J], E [auth D], F [auth K], B, C [auth I], D [auth J], E [auth D], F [auth K], G [auth M]	PF00022	Actin (Actin)	Actin	-	Family
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	PF02736	Myosin N-terminal SH3-like domain (Myosin_N)	Myosin N-terminal SH3-like domain	This domain has an SH3-like fold. It is found at the N-terminus of many but not all myosins. The function of this domain is unknown.	Domain
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	PF00063	Myosin head (motor domain) (Myosin_head)	Myosin head (motor domain)		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
H [auth R], I [auth T], J [auth S], K [auth U]	Tropomyosin alpha-1 chain	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding protein heterodimerization activity protein dimerization activity identical protein binding protein homodimerization activity structural constituent of cytoskeleton structural molecule activity disordered domain specific binding protein domain specific binding	regulation of vascular associated smooth muscle cell migration negative regulation of locomotion regulation of biological process vascular associated smooth muscle cell migration regulation of cell motility regulation of cellular process negative regulation of vascular associated smooth muscle cell migration regulation of smooth muscle cell migration biological regulation negative regulation of biological process smooth muscle cell migration muscle cell migration negative regulation of smooth muscle cell migration regulation of locomotion regulation of cell migration regulation of vascular associated smooth muscle cell migration negative regulation of locomotion regulation of biological process vascular associated smooth muscle cell migration regulation of cell motility regulation of cellular process negative regulation of vascular associated smooth muscle cell migration regulation of smooth muscle cell migration biological regulation negative regulation of biological process smooth muscle cell migration muscle cell migration negative regulation of smooth muscle cell migration regulation of locomotion regulation of cell migration negative regulation of cellular process negative regulation of cell motility cell migration cellular process cell motility locomotion negative regulation of cell migration multicellular organismal process system process muscle filament sliding actin filament-based process actin-mediated cell contraction actin filament-based movement muscle contraction muscle system process actin-myosin filament sliding developmental process multicellular organism development embryo development ending in birth or egg hatching chordate embryonic development anatomical structure development embryo development in utero embryonic development regulation of developmental process regulation of cell shape cell morphogenesis regulation of cell morphogenesis anatomical structure morphogenesis regulation of biological quality regulation of anatomical structure morphogenesis cell adhesion positive regulation of cell adhesion regulation of cell adhesion positive regulation of biological process positive regulation of cellular process regulation of cellular component size protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization cellular component biogenesis actin filament capping cellular component assembly negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization cellular component disassembly 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 cellular component organization regulation of protein-containing complex assembly negative regulation of protein-containing complex disassembly protein-containing complex assembly negative regulation of protein polymerization cellular component organization or biogenesis 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 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 wound healing response to stimulus response to stress response to wounding plasma membrane bounded cell projection organization ruffle organization cell projection organization heart process circulatory system process cardiac muscle contraction heart contraction blood circulation striated muscle contraction ventricular cardiac muscle tissue morphogenesis heart morphogenesis striated muscle tissue development muscle structure development ventricular cardiac muscle tissue development cardiac chamber development animal organ morphogenesis muscle tissue development muscle organ development system development heart development cardiac chamber morphogenesis cardiac muscle tissue development animal organ development tissue development muscle tissue morphogenesis circulatory system development tissue morphogenesis cardiac ventricle morphogenesis cardiac muscle tissue morphogenesis cardiac ventricle development muscle organ morphogenesis positive regulation of organelle organization positive regulation of cellular component organization regulation of actin filament bundle assembly positive regulation of actin filament bundle assembly actin filament bundle organization positive regulation of stress fiber assembly stress fiber assembly actomyosin structure organization positive regulation of cellular component biogenesis positive regulation of cytoskeleton organization positive regulation of supramolecular fiber organization regulation of stress fiber assembly contractile actin filament bundle assembly regulation of actomyosin structure organization actin filament bundle assembly cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly muscle cell differentiation striated muscle cell development cellular anatomical entity morphogenesis muscle cell development cell differentiation sarcomere organization organelle assembly myofibril assembly anatomical structure formation involved in morphogenesis striated muscle cell differentiation regulation of vascular associated smooth muscle cell proliferation negative regulation of cell population proliferation cell population proliferation regulation of smooth muscle cell proliferation negative regulation of vascular associated smooth muscle cell proliferation smooth muscle cell proliferation negative regulation of smooth muscle cell proliferation regulation of cell population proliferation muscle cell proliferation vascular associated smooth muscle cell proliferation regulation of systemic arterial blood pressure mediated by a chemical signal regulation of heart contraction regulation of system process positive regulation of blood pressure positive regulation of blood circulation regulation of systemic arterial blood pressure by norepinephrine-epinephrine positive regulation of blood pressure by epinephrine-norepinephrine regulation of multicellular organismal process regulation of heart rate regulation of heart rate by chemical signal regulation of blood pressure positive regulation of heart rate positive regulation of heart rate by epinephrine-norepinephrine positive regulation of heart contraction regulation of blood circulation regulation of systemic arterial blood pressure positive regulation of heart rate by epinephrine positive regulation of multicellular organismal process	ruffle cell leading edge plasma membrane membrane leading edge membrane plasma membrane bounded cell projection cell periphery cell projection cellular anatomical structure ruffle membrane plasma membrane region cell projection membrane intracellular organelle intracellular anatomical structure ruffle cell leading edge plasma membrane membrane leading edge membrane plasma membrane bounded cell projection cell periphery cell projection cellular anatomical structure ruffle membrane plasma membrane region cell projection membrane intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cytoplasm cytosol striated muscle thin filament protein-containing complex myofilament muscle thin filament tropomyosin sarcomere contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex bleb actin filament bundle actomyosin stress fiber contractile actin filament bundle polymeric cytoskeletal fiber actin filament
B, C [auth I], D [auth J], E [auth D], F [auth K], B, C [auth I], D [auth J], E [auth D], F [auth K], G [auth M]	Actin, alpha cardiac muscle 1	hydrolase activity catalytic activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding hydrolase activity catalytic activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cytoskeletal protein binding protein binding myosin binding polypeptide conformation or assembly isomerase activity isomerase activity cytoskeletal motor activity microfilament motor activity macromolecular conformation isomerase activity ATP-dependent activity	response to stimulus response to chemical response to xenobiotic stimulus developmental process mesenchyme migration multicellular organismal process mesenchyme morphogenesis animal organ development mesenchyme development tissue development tissue morphogenesis anatomical structure morphogenesis tissue migration anatomical structure development response to stimulus response to chemical response to xenobiotic stimulus developmental process mesenchyme migration multicellular organismal process mesenchyme morphogenesis animal organ development mesenchyme development tissue development tissue morphogenesis anatomical structure morphogenesis tissue migration anatomical structure development animal organ morphogenesis heart development cardiac muscle tissue development heart morphogenesis muscle tissue morphogenesis striated muscle tissue development circulatory system development muscle structure development multicellular organism development cardiac muscle tissue morphogenesis muscle organ development muscle tissue development muscle organ morphogenesis system development regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death regulation of biosynthetic process positive regulation of biological 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 cellular process cellular developmental process cellular component assembly involved in morphogenesis skeletal myofibril assembly cell development membraneless organelle assembly muscle cell differentiation cellular component organization cellular component biogenesis striated muscle cell development cellular anatomical entity morphogenesis cellular component assembly muscle cell development cell differentiation actin filament-based process cellular component organization or biogenesis skeletal muscle thin filament assembly actin cytoskeleton organization actomyosin structure organization organelle assembly actin filament organization organelle organization myofibril assembly anatomical structure formation involved in morphogenesis striated muscle cell differentiation supramolecular fiber organization cytoskeleton organization cytoplasmic actin-based contraction involved in cell motility cell motility actin-mediated cell contraction actin filament-based movement response to alcohol response to oxygen-containing compound response to ethanol actin-myosin filament sliding heart process system process circulatory system process heart contraction blood circulation cardiac muscle contraction muscle contraction muscle system process striated muscle contraction cardiac muscle cell development cardiac cell development cardiac muscle cell differentiation cardiocyte differentiation cardiac myofibril assembly	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cytoplasm synapse cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cytoplasm synapse cell junction glutamatergic synapse sarcomere contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex polymeric cytoskeletal fiber actin filament cell body I band actin-based cell projection filopodium
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	Myosin-6	calcium-dependent ATPase activity ATP-dependent activity cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding calcium-dependent ATPase activity ATP-dependent activity cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding kinase binding enzyme binding protein kinase binding calmodulin binding identical protein binding polypeptide conformation or assembly isomerase activity isomerase activity cytoskeletal motor activity microfilament motor activity macromolecular conformation isomerase activity catalytic activity	heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process regulation of biological quality heart contraction blood circulation regulation of heart rate heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process regulation of biological quality heart contraction blood circulation regulation of heart rate regulation of blood pressure developmental process heart development heart growth regulation of growth regulation of multicellular organismal development regulation of developmental growth regulation of developmental process developmental growth growth animal organ development organ growth circulatory system development multicellular organism development regulation of organ growth regulation of heart growth anatomical structure development system development muscle contraction muscle system process striated muscle contraction nucleoside phosphate metabolic process ribose phosphate metabolic process purine nucleoside triphosphate metabolic process ATP metabolic process carbohydrate derivative metabolic process primary metabolic process nucleotide metabolic process purine-containing compound metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process ribonucleotide metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process phosphate-containing compound metabolic process metabolic process cellular process small molecule metabolic process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process phosphorus metabolic process regulation of the force of heart contraction cardiac atrium morphogenesis heart morphogenesis striated muscle tissue development muscle structure development cardiac chamber development animal organ morphogenesis muscle tissue development muscle organ development cardiac chamber morphogenesis atrial cardiac muscle tissue morphogenesis cardiac muscle tissue development cardiac atrium development tissue development atrial cardiac muscle tissue development muscle tissue morphogenesis anatomical structure morphogenesis tissue morphogenesis cardiac muscle tissue morphogenesis muscle organ morphogenesis muscle filament sliding actin filament-based process actin-mediated cell contraction actin filament-based movement actin-myosin filament sliding embryo development ending in birth or egg hatching chordate embryonic development embryo development in utero embryonic development visceral muscle development cardiac muscle cell development cellular developmental process cell development muscle cell differentiation striated muscle cell development muscle cell development cell differentiation cardiac cell development cardiac muscle cell differentiation cardiocyte differentiation striated muscle cell differentiation cardiac muscle contraction adult heart development cellular component assembly involved in morphogenesis membraneless organelle assembly cellular component organization cellular component biogenesis cellular anatomical entity morphogenesis cellular component assembly cellular component organization or biogenesis actomyosin structure organization actin cytoskeleton organization organelle assembly myofibril assembly organelle organization anatomical structure formation involved in morphogenesis supramolecular fiber organization cytoskeleton organization ventricular cardiac muscle tissue morphogenesis ventricular cardiac muscle tissue development cardiac ventricle morphogenesis cardiac ventricle development sarcomere organization muscle hypertrophy striated muscle adaptation response to stimulus striated muscle hypertrophy muscle adaptation cardiac muscle adaptation response to stress cardiac muscle hypertrophy cardiac muscle hypertrophy in response to stress muscle hypertrophy in response to stress	intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex protein-containing complex actin cytoskeleton myosin complex cytoskeleton myosin II complex muscle myosin complex myosin filament actin filament bundle actomyosin stress fiber contractile actin filament bundle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
H [auth R], I [auth T], J [auth S], K [auth U]	IPR000533	Tropomyosin	Family
B, C [auth I], D [auth J], E [auth D], F [auth K], B, C [auth I], D [auth J], E [auth D], F [auth K], G [auth M]	IPR020902	Actin/actin-like conserved site	Conserved Site
B, C [auth I], D [auth J], E [auth D], F [auth K], B, C [auth I], D [auth J], E [auth D], F [auth K], G [auth M]	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
B, C [auth I], D [auth J], E [auth D], F [auth K], B, C [auth I], D [auth J], E [auth D], F [auth K], G [auth M]	IPR004001	Actin, conserved site	Conserved Site
B, C [auth I], D [auth J], E [auth D], F [auth K], B, C [auth I], D [auth J], E [auth D], F [auth K], G [auth M]	IPR004000	Actin family	Family
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	IPR001609	Myosin head, motor domain-like	Domain
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	IPR004009	Myosin, SH3 domain	Domain
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	IPR014751	DNA repair protein XRCC4-like, C-terminal	Homologous Superfamily
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	IPR002928	Myosin tail	Domain
A, L [auth C], M [auth F], N [auth G], O [auth H], A, L [auth C], M [auth F], N [auth G], O [auth H], P [auth L]	IPR008989	Myosin S1 fragment, N-terminal	Homologous Superfamily

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.