Annotations: 7QIO

Homology model of myosin neck domain in skeletal sarcomere

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)
F [auth Q]	SCOP2B Superfamily	EF-hand	8102889	3001983	SCOP2B (2022-06-29)
E [auth P]	SCOP2B Superfamily	EF-hand	8102889	3001983	SCOP2B (2022-06-29)
C [auth N]	SCOP2B Superfamily	EF-hand	8102867	3001983	SCOP2B (2022-06-29)
D [auth O]	SCOP2B Superfamily	EF-hand	8102867	3001983	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)
F [auth Q]	tRNA-synt_2d	e7qioQ1	A: beta barrels	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: tRNA-synt_2d	ECOD (v294.2)
E [auth P]	Ribosomal_L36	e7qioP1	A: beta barrels	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Ribosomal_L36	ECOD (v294.2)
C [auth N]	Ribosomal_L36	e7qioN1	A: beta barrels	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Ribosomal_L36	ECOD (v294.2)
D [auth O]	tRNA-synt_2d	e7qioO1	A: beta barrels	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: tRNA-synt_2d	ECOD (v294.2)
A [auth L]	Ribosomal_L36	e7qioL1	A: beta barrels	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Ribosomal_L36	ECOD (v294.2)
B [auth M]	tRNA-synt_2d	e7qioM1	A: beta barrels	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: tRNA-synt_2d	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth P], F [auth Q]	PF13405	EF-hand domain (EF-hand_6)	EF-hand domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth P], F [auth Q]	Myosin regulatory light chain 2, skeletal muscle isoform	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding structural molecule activity structural constituent of muscle	multicellular organismal process system process muscle contraction muscle system process developmental process muscle structure development skeletal muscle organ development skeletal muscle tissue development anatomical structure development animal organ development muscle tissue development muscle organ development tissue development striated muscle tissue development	cellular anatomical structure intracellular anatomical structure cytoplasm intracellular organelle protein-containing complex cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton myosin complex
C [auth N], D [auth O]	Myosin light chain 1/3, skeletal muscle isoform	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding structural molecule activity structural constituent of muscle cytoskeletal motor activity	heart process multicellular organismal process system process circulatory system process cardiac muscle contraction heart contraction muscle contraction muscle system process blood circulation striated muscle contraction muscle filament sliding actin filament-based process cellular process actin-mediated cell contraction heart process multicellular organismal process system process circulatory system process cardiac muscle contraction heart contraction muscle contraction muscle system process blood circulation striated muscle contraction muscle filament sliding actin filament-based process cellular process actin-mediated cell contraction actin filament-based movement actin-myosin filament sliding	intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber supramolecular polymer supramolecular complex protein-containing complex actin cytoskeleton myosin complex intracellular anatomical structure intracellular membraneless organelle intracellular organelle cellular anatomical structure organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber supramolecular polymer supramolecular complex protein-containing complex actin cytoskeleton myosin complex cytoskeleton myosin II complex myofibril unconventional myosin complex
A [auth L], B [auth M]	Myosin-4	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 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 actin binding protein-containing complex binding protein binding actin filament binding RNA binding double-stranded RNA binding nucleic acid binding calmodulin binding polypeptide conformation or assembly isomerase activity isomerase activity cytoskeletal motor activity microfilament motor activity macromolecular conformation isomerase activity catalytic activity ATP-dependent activity	response to stimulus response to activity response to muscle activity multicellular organismal process system process muscle contraction muscle system process	protein-containing complex intracellular anatomical structure intracellular membraneless organelle actin cytoskeleton myosin complex intracellular organelle cellular anatomical structure cytoskeleton organelle membraneless organelle myosin II complex contractile muscle fiber cytoplasm supramolecular fiber protein-containing complex intracellular anatomical structure intracellular membraneless organelle actin cytoskeleton myosin complex intracellular organelle cellular anatomical structure cytoskeleton organelle membraneless organelle myosin II complex contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex myosin filament

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth P], F [auth Q]	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
E [auth P], F [auth Q]	IPR002048	EF-hand domain	Domain
E [auth P], F [auth Q]	IPR011992	EF-hand domain pair	Homologous Superfamily
E [auth P], F [auth Q]	IPR050403	Myosin regulatory light chain	Family
C [auth N], D [auth O]	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
C [auth N], D [auth O]	IPR002048	EF-hand domain	Domain
C [auth N], D [auth O]	IPR011992	EF-hand domain pair	Homologous Superfamily
A [auth L], B [auth M]	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
A [auth L], B [auth M]	IPR004009	Myosin, SH3 domain	Domain
A [auth L], B [auth M]	IPR014751	DNA repair protein XRCC4-like, C-terminal	Homologous Superfamily
A [auth L], B [auth M]	IPR001609	Myosin head, motor domain-like	Domain
A [auth L], B [auth M]	IPR002928	Myosin tail	Domain
A [auth L], B [auth M]	IPR008989	Myosin S1 fragment, N-terminal	Homologous Superfamily
A [auth L], B [auth M]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	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.