Annotations: 9CFX

Cryo-EM structure of myosin-1c bound to F-actin in the Rigor state

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth B]	SCOP2B Superfamily	Actin-like ATPases	8040509	3000092	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	Actin-like ATPases	8040506	3000092	SCOP2B (2022-06-29)
B [auth C]	SCOP2B Superfamily	Actin-like ATPases	8040506	3000092	SCOP2B (2022-06-29)
B [auth C]	SCOP2B Superfamily	Actin-like ATPases	8040509	3000092	SCOP2B (2022-06-29)
C [auth D]	SCOP2B Superfamily	Actin-like ATPases	8040506	3000092	SCOP2B (2022-06-29)
C [auth D]	SCOP2B Superfamily	Actin-like ATPases	8040509	3000092	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)
D [auth P]	Reovirus_L2_GTase	e9cfxP1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Reovirus_L2_GTase	ECOD (v295)
E [auth R]	Reovirus_L2_GTase	e9cfxR1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Reovirus_L2_GTase	ECOD (v295)
A [auth B]	Reovirus_L2_GTase	e9cfxB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Reovirus_L2_GTase	ECOD (v295)
B [auth C]	Reovirus_L2_GTase	e9cfxC1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Reovirus_L2_GTase	ECOD (v295)
C [auth D]	Reovirus_L2_GTase	e9cfxD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Reovirus_L2_GTase	ECOD (v295)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
D [auth P]	PF00612	IQ calmodulin-binding motif (IQ)	IQ calmodulin-binding motif	-	Motif
D [auth P]	PF00063	Myosin head (motor domain) (Myosin_head)	Myosin head (motor domain)		Domain
E [auth R]	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth P]	Unconventional myosin-Ic	small GTPase binding protein binding binding enzyme binding GTPase binding cytoskeletal protein binding actin binding protein-containing complex binding actin filament binding phospholipid binding lipid binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding small GTPase binding protein binding binding enzyme binding GTPase binding cytoskeletal protein binding actin binding protein-containing complex binding actin filament binding phospholipid binding lipid 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 calmodulin binding signaling receptor binding polypeptide conformation or assembly isomerase activity isomerase activity cytoskeletal motor activity microfilament motor activity macromolecular conformation isomerase activity catalytic activity ATP-dependent activity	cellular response to stimulus regulation of biological process regulation of cellular process cellular response to growth factor stimulus cell surface receptor signaling pathway response to stimulus signaling response to endogenous stimulus biological regulation cell surface receptor protein tyrosine kinase signaling pathway cell communication vascular endothelial growth factor signaling pathway cellular response to endogenous stimulus cellular process cellular response to stimulus regulation of biological process regulation of cellular process cellular response to growth factor stimulus cell surface receptor signaling pathway response to stimulus signaling response to endogenous stimulus biological regulation cell surface receptor protein tyrosine kinase signaling pathway cell communication vascular endothelial growth factor signaling pathway cellular response to endogenous stimulus cellular process cellular response to vascular endothelial growth factor stimulus signal transduction response to growth factor enzyme-linked receptor protein signaling pathway localization establishment of protein localization cellular localization establishment of protein localization to membrane protein targeting localization within membrane establishment of localization protein targeting to membrane cellular component organization organelle organization actin cytoskeleton organization actin filament organization actin filament-based process cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of transcription by RNA polymerase II primary metabolic process regulation of macromolecule metabolic process positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process actin filament-based movement regulation of localization regulation of protein localization positive regulation of establishment of protein localization regulation of protein targeting to membrane intracellular protein localization regulation of establishment of protein localization regulation of cellular localization regulation of protein targeting macromolecule localization positive regulation of protein targeting to membrane import into cell transport endocytosis vesicle-mediated transport cellular response to nitrogen compound response to peptide hormone regulation of cellular response to insulin stimulus positive regulation of response to stimulus response to hormone positive regulation of cellular response to insulin stimulus cellular response to hormone stimulus response to oxygen-containing compound cellular response to peptide hormone stimulus response to nitrogen compound cellular response to oxygen-containing compound cellular response to chemical stimulus regulation of response to stimulus response to chemical response to insulin cellular response to insulin stimulus bicellular tight junction assembly regulation of bicellular tight junction assembly regulation of cellular component organization tight junction organization apical junction assembly regulation of cellular component biogenesis cellular component biogenesis regulation of cell junction assembly cell junction organization cellular component assembly cell junction assembly tight junction assembly cell-cell junction assembly cell-cell junction organization biological process involved in interspecies interaction between organisms immune response response to other organism defense response response to type II interferon response to cytokine defense response to symbiont response to external stimulus cellular response to type II interferon response to biotic stimulus response to peptide immune system process defense response to other organism response to stress innate immune response cellular response to cytokine stimulus response to external biotic stimulus positive regulation of organelle organization regulation of cytoskeleton organization regulation of actin filament-based process positive regulation of cellular component organization regulation of cellular component size regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly positive regulation of protein polymerization protein-containing complex assembly regulation of actin filament polymerization regulation of biological quality protein polymerization actin polymerization or depolymerization regulation of actin filament organization actin filament polymerization protein-containing complex organization positive regulation of cellular component biogenesis positive regulation of cytoskeleton organization regulation of actin polymerization or depolymerization positive regulation of supramolecular fiber organization regulation of organelle organization regulation of protein polymerization regulation of actin filament length regulation of actin cytoskeleton organization regulation of supramolecular fiber organization positive regulation of actin filament polymerization regulation of anatomical structure size positive regulation of locomotion regulation of cell motility positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility locomotion transcription by RNA polymerase I positive regulation of transcription by RNA polymerase I regulation of transcription by RNA polymerase I positive regulation of transcription by RNA polymerase III transcription by RNA polymerase III regulation of transcription by RNA polymerase III vesicle transport along actin filament vesicle cytoskeletal trafficking vesicle localization establishment of organelle localization establishment of vesicle localization intracellular transport organelle localization establishment of localization in cell cytoskeleton-dependent intracellular transport actin filament-based transport chromatin organization chromatin remodeling	cellular anatomical structure membrane intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cytoplasm cytosol apical part of cell cluster of actin-based cell projections brush border cellular anatomical structure membrane intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cytoplasm cytosol apical part of cell cluster of actin-based cell projections brush border stereocilium bundle neuron projection membrane cell periphery stereocilium membrane cell leading edge plasma membrane neuron projection leading edge membrane plasma membrane bounded cell projection cell projection stereocilium actin-based cell projection plasma membrane region cell projection membrane protein-containing complex myosin complex microvillus polymeric cytoskeletal fiber actin filament filamentous actin supramolecular fiber supramolecular polymer supramolecular complex membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen organelle lumen nuclear lumen cell cortex ruffle ruffle membrane basal part of cell basal plasma membrane intracellular vesicle phagocytic vesicle cytoplasmic vesicle vesicle endocytic vesicle membrane microdomain membrane raft cytoplasmic vesicle membrane vesicle membrane organelle membrane lateral plasma membrane ATPase complex catalytic complex B-WICH complex nuclear protein-containing complex chromatin chromosome SWI/SNF superfamily-type complex nuclear body nucleoplasm
E [auth R]	Calmodulin-1	cytoskeletal protein binding titin binding protein binding binding enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity enzyme binding adenylate cyclase binding cytoskeletal protein binding titin binding protein binding binding enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity enzyme binding adenylate cyclase binding phosphatidylinositol 3-kinase binding channel regulator activity ion channel regulator activity calcium channel regulator activity transporter regulator activity nitric-oxide synthase regulator activity molecular function inhibitor activity transporter inhibitor activity calcium channel inhibitor activity ion channel inhibitor activity channel inhibitor activity cyclase regulator activity cyclase activator activity adenylate cyclase regulator activity adenylate cyclase activator activity protein serine/threonine kinase activator activity kinase activator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity nitric-oxide synthase binding cation binding ion binding calcium ion binding metal ion binding small molecule binding protein domain specific binding signaling receptor binding type 3 metabotropic glutamate receptor binding glutamate receptor binding G protein-coupled receptor binding G protein-coupled glutamate receptor binding transmembrane transporter binding kinase binding protein kinase binding calcium-dependent protein binding	organelle localization by membrane tethering localization organelle localization cellular process membrane docking 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 organelle localization by membrane tethering localization organelle localization cellular process membrane docking 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 localization regulation of calcium ion transport negative regulation of ion transmembrane transporter activity regulation of cellular process negative regulation of calcium ion transmembrane transporter activity transport negative regulation of monoatomic ion transport monoatomic ion transmembrane transport negative regulation of biological process negative regulation of ryanodine-sensitive calcium-release channel activity regulation of transmembrane transporter activity negative regulation of transport regulation of monoatomic ion transmembrane transport negative regulation of transmembrane transport calcium ion transport metal ion transport regulation of calcium ion transmembrane transport monoatomic cation transmembrane transport intercellular transport negative regulation of monoatomic ion transmembrane transport negative regulation of release of sequestered calcium ion into cytosol negative regulation of cellular process monoatomic ion transport negative regulation of cation transmembrane transport monoatomic cation transport regulation of metal ion transport calcium ion transmembrane import into cytosol regulation of transport regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport negative regulation of transporter activity negative regulation of molecular function establishment of localization negative regulation of calcium ion transport transmembrane transport regulation of molecular function release of sequestered calcium ion into cytosol regulation of transmembrane transport regulation of ryanodine-sensitive calcium-release channel activity regulation of monoatomic cation transmembrane transport negative regulation of calcium ion transmembrane transport calcium ion transmembrane transport response to stimulus response to metal ion response to chemical response to calcium ion sarcoplasmic reticulum calcium ion transport release of sequestered calcium ion into cytosol by sarcoplasmic reticulum release of sequestered calcium ion into cytosol by endoplasmic reticulum regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum negative regulation of voltage-gated calcium channel activity regulation of voltage-gated calcium channel activity negative regulation of high voltage-gated calcium channel activity cellular component disassembly catabolic process protein-containing complex organization macroautophagy autophagy protein-containing complex disassembly cellular component organization autophagosome maturation autophagosome membrane docking metabolic process cellular component organization or biogenesis process utilizing autophagic mechanism import into cell cellular localization regulation of cellular component organization synaptic vesicle cycle regulation of synaptic vesicle recycling vesicle-mediated transport presynaptic endocytosis vesicle-mediated transport in synapse synaptic vesicle recycling regulation of synaptic vesicle endocytosis establishment of localization in cell regulation of endocytosis synaptic vesicle endocytosis regulation of vesicle-mediated transport endocytosis cellular response to interferon-beta response to peptide response to interferon-beta response to cytokine cellular response to cytokine stimulus response to ketone response to lipid response to endogenous stimulus response to alcohol response to glucocorticoid response to oxygen-containing compound response to corticosterone response to mineralocorticoid response to corticosteroid response to hormone response to steroid hormone regulation of cytokinesis regulation of cell cycle process cytokinesis regulation of cell division cell division cell cycle regulation of cell cycle cell cycle process cellular response to stimulus cell surface receptor signaling pathway via STAT cell surface receptor signaling pathway signaling cell communication signal transduction cell surface receptor signaling pathway via JAK-STAT cardiac muscle contraction intracellular signal transduction intracellular signaling cassette regulation of cardiac muscle contraction muscle contraction regulation of striated muscle contraction calcium-mediated signaling regulation of muscle contraction regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion striated muscle contraction regulation of cardiac muscle contraction by calcium ion signaling muscle system process regulation of muscle system process cell cycle G2/M phase transition mitotic cell cycle process G2/M transition of mitotic cell cycle cell cycle phase transition mitotic cell cycle mitotic cell cycle phase transition regulated exocytosis modulation of chemical synaptic transmission synaptic vesicle exocytosis regulation of regulated secretory pathway synaptic signaling regulation of secretion by cell secretion by cell signal release trans-synaptic signaling regulation of signaling neurotransmitter secretion secretion regulation of neurotransmitter transport regulation of synaptic vesicle exocytosis export from cell cell-cell signaling neurotransmitter transport regulation of secretion chemical synaptic transmission signal release from synapse regulation of trans-synaptic signaling exocytosis regulation of neurotransmitter secretion anterograde trans-synaptic signaling regulation of exocytosis regulation of cell communication cell communication by electrical coupling involved in cardiac conduction cell communication by electrical coupling regulation of cell communication by electrical coupling involved in cardiac conduction cardiac conduction cell communication involved in cardiac conduction regulation of cell communication by electrical coupling biological process involved in interspecies interaction between organisms immune response response to other organism defense response response to type II interferon defense response to symbiont response to external stimulus cellular response to type II interferon response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus calcineurin-mediated signaling positive regulation of cell communication positive regulation of signal transduction positive regulation of biological process positive regulation of receptor signaling pathway via STAT regulation of signal transduction positive regulation of receptor signaling pathway via JAK-STAT positive regulation of response to stimulus regulation of receptor signaling pathway via JAK-STAT positive regulation of cellular process regulation of response to stimulus regulation of receptor signaling pathway via STAT positive regulation of signaling regulation of action potential regulation of cardiac muscle cell action potential action potential cardiac muscle cell action potential regulation of membrane potential response to amine response to nitrogen compound response to amphetamine detection of stimulus detection of chemical stimulus detection of calcium ion	intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle spindle pole microtubule cytoskeleton membrane-bounded organelle mitochondrial membrane mitochondrion membrane intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton spindle organelle membraneless organelle intracellular membraneless organelle spindle pole microtubule cytoskeleton membrane-bounded organelle mitochondrial membrane mitochondrion membrane intracellular membrane-bounded organelle organelle envelope mitochondrial envelope cytoplasm organelle membrane cytosol cell projection sperm midpiece cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex transmembrane transporter complex membrane protein complex cation channel complex transporter complex calcium channel complex monoatomic ion channel complex chromatin chromosome axon synapse neuron projection axon terminus presynapse distal axon calyx of Held cell junction neuron projection terminus sarcomere contractile muscle fiber supramolecular fiber myofibril supramolecular polymer supramolecular complex intracellular vesicle transport vesicle membrane endomembrane system bounding membrane of organelle cytoplasmic vesicle vesicle membrane synaptic vesicle synaptic vesicle membrane vesicle transport vesicle exocytic vesicle membrane cytoplasmic vesicle membrane secretory vesicle exocytic vesicle myelin sheath centrosome microtubule organizing center presynaptic cytosol catalytic complex growth cone site of polarized growth nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen voltage-gated potassium channel complex plasma membrane protein complex plasma membrane potassium channel complex cell periphery Schaffer collateral - CA1 synapse polymeric cytoskeletal fiber spindle microtubule microtubule postsynapse postsynaptic cytosol
A [auth B], B [auth C], C [auth D]	Actin, alpha skeletal muscle	cytoskeletal protein binding titin binding protein binding binding cation binding ion binding calcium ion binding metal ion binding small molecule binding protein domain specific binding hydrolase activity catalytic activity troponin I binding cytoskeletal motor activator activity cytoskeletal protein binding titin binding protein binding binding cation binding ion binding calcium ion binding metal ion binding small molecule binding protein domain specific binding hydrolase activity catalytic activity troponin I binding cytoskeletal motor activator activity cytoskeletal motor regulator activity molecular function activator activity molecular function regulator activity magnesium ion binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding myosin heavy chain binding myosin binding tropomyosin binding calcium-dependent protein binding identical protein binding actin monomer binding actin binding	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 myotube cell development skeletal muscle fiber development 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 myotube cell development skeletal muscle fiber development cellular developmental process skeletal muscle tissue development cell development muscle cell differentiation myotube differentiation striated muscle tissue development muscle structure development skeletal muscle organ development striated muscle cell development muscle cell development cell differentiation cellular process muscle tissue development muscle organ development striated muscle cell differentiation regulation of biosynthetic process regulation of biological process regulation of cellular process biological regulation 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 component assembly involved in morphogenesis skeletal myofibril assembly membraneless organelle assembly cellular component organization cellular component biogenesis cellular anatomical entity morphogenesis cellular component assembly 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 supramolecular fiber organization cytoskeleton organization protein polymerization actin polymerization or depolymerization actin filament polymerization protein-containing complex organization protein-containing complex assembly actin filament bundle organization actin filament bundle assembly	intracellular anatomical structure skeletal muscle myofibril intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex cell projection intracellular anatomical structure skeletal muscle myofibril intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex cell projection cell leading edge plasma membrane bounded cell projection lamellipodium cytoskeleton actin filament bundle actin cytoskeleton actomyosin stress fiber contractile actin filament bundle polymeric cytoskeletal fiber actin filament protein-containing complex filamentous actin cell body striated muscle thin filament myofilament sarcomere actin-based cell projection filopodium

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D [auth P]	IPR000048	IQ motif, EF-hand binding site	Binding Site
D [auth P]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
D [auth P]	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
D [auth P]	IPR001609	Myosin head, motor domain-like	Domain
D [auth P]	IPR010926	Class I myosin tail homology domain	Domain
D [auth P]	IPR036072	Class I myosin, motor domain	Domain
E [auth R]	IPR002048	EF-hand domain	Domain
E [auth R]	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
E [auth R]	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
E [auth R]	IPR011992	EF-hand domain pair	Homologous Superfamily
A [auth B], B [auth C], C [auth D]	IPR020902	Actin/actin-like conserved site	Conserved Site
A [auth B], B [auth C], C [auth D]	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A [auth B], B [auth C], C [auth D]	IPR004001	Actin, conserved site	Conserved Site
A [auth B], B [auth C], C [auth D]	IPR004000	Actin family	Family

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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.