Annotations: 7KCH

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth G]	SCOP2B Superfamily	Actin-like ATPases	8043438	3000092	SCOP2B (2022-06-29)
A [auth G]	SCOP2B Superfamily	Actin-like ATPases	8043436	3000092	SCOP2B (2022-06-29)
C [auth B]	SCOP2B Superfamily	Actin-like ATPases	8043436	3000092	SCOP2B (2022-06-29)
C [auth B]	SCOP2B Superfamily	Actin-like ATPases	8043438	3000092	SCOP2B (2022-06-29)
D [auth C]	SCOP2B Superfamily	Actin-like ATPases	8043438	3000092	SCOP2B (2022-06-29)
D [auth C]	SCOP2B Superfamily	Actin-like ATPases	8043436	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)
A [auth G]	PF00022	e7kchG1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: PF00022	ECOD (1.6)
C [auth B]	PF00022	e7kchB2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: PF00022	ECOD (1.6)
D [auth C]	PF00022	e7kchC2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: PF00022	ECOD (1.6)
B [auth A]	PF02736	e7kchA2	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF02736	ECOD (1.6)
B [auth A]	PF00063	e7kchA1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00063	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth G], C [auth B], D [auth C]	PF00022	Actin (Actin)	Actin	-	Family
B [auth A]	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
A [auth G], C [auth B], D [auth C]	Actin, alpha skeletal muscle	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding hydrolase activity catalytic activity	cellular developmental process cellular component assembly involved in morphogenesis non-membrane-bounded organelle assembly skeletal myofibril assembly cell development muscle cell differentiation cellular component organization cellular component biogenesis muscle structure development striated muscle cell development cellular anatomical entity morphogenesis cellular component assembly muscle cell development cell differentiation actin filament-based process cellular developmental process cellular component assembly involved in morphogenesis non-membrane-bounded organelle assembly skeletal myofibril assembly cell development muscle cell differentiation cellular component organization cellular component biogenesis muscle structure development striated muscle cell development cellular anatomical entity morphogenesis cellular component assembly muscle cell development cell differentiation actin filament-based process anatomical structure development cellular component organization or biogenesis developmental process skeletal muscle thin filament assembly actin cytoskeleton organization actomyosin structure organization organelle assembly actin filament organization anatomical structure morphogenesis organelle organization myofibril assembly anatomical structure formation involved in morphogenesis cellular process striated muscle cell differentiation supramolecular fiber organization cytoskeleton organization myotube cell development skeletal muscle fiber development skeletal muscle tissue development animal organ development tissue development myotube differentiation skeletal muscle organ development muscle tissue development muscle organ development	polymeric cytoskeletal fiber intracellular anatomical structure actin filament cellular anatomical entity actin cytoskeleton intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle supramolecular fiber supramolecular polymer supramolecular complex non-membrane-bounded organelle striated muscle thin filament polymeric cytoskeletal fiber intracellular anatomical structure actin filament cellular anatomical entity actin cytoskeleton intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle supramolecular fiber supramolecular polymer supramolecular complex non-membrane-bounded organelle striated muscle thin filament myofilament sarcomere contractile muscle fiber cytoplasm myofibril actin filament bundle actomyosin stress fiber contractile actin filament bundle
B [auth A]	Unconventional myosin heavy chain	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cytoskeletal protein binding actin binding protein binding cytoskeletal motor activity	cellular component organization organelle organization actin cytoskeleton organization actin filament organization actin filament-based process cellular process cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization actin filament-based movement	intracellular organelle protein-containing complex intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle cellular anatomical entity actin cytoskeleton non-membrane-bounded organelle myosin complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth G], C [auth B], D [auth C]	IPR020902	Actin/actin-like conserved site	Conserved Site
A [auth G], C [auth B], D [auth C]	IPR004001	Actin, conserved site	Conserved Site
A [auth G], C [auth B], D [auth C]	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A [auth G], C [auth B], D [auth C]	IPR004000	Actin family	Family
B [auth A]	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
B [auth A]	IPR037975	Class XI myosin, cargo binding domain	Domain
B [auth A]	IPR001609	Myosin head, motor domain	Domain
B [auth A]	IPR002710	Dilute domain	Domain
B [auth A]	IPR000048	IQ motif, EF-hand binding site	Binding Site
B [auth A]	IPR036018	Plant myosin, class XI, motor domain	Domain
B [auth A]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	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 R01GM133198.