3J04 | pdb_00003j04

EM structure of the heavy meromyosin subfragment of Chick smooth muscle Myosin with regulatory light chain in phosphorylated 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)
F	SCOP2B Superfamily	EF-hand	8040884	3001983	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	EF-hand	8040884	3001983	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	EF-hand	8062869	3001983	SCOP2B (2022-06-29)
B	SCOP2 Family	Calmodulin-like	8062868	4000924	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	EF-hand	8062869	3001983	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	P-loop motor domain	8044301	3002036	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Myosin s1 fragment, N-terminal domain	8041636	3000319	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	P-loop motor domain	8044301	3002036	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Myosin s1 fragment, N-terminal domain	8041636	3000319	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	Ras	e3j04F1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Ras	ECOD (v294.1)
C	MHC_I	e3j04C1	A: a/b three-layered sandwiches	X: MHC antigen-recognition domain	H: MHC antigen-recognition domain	T: MHC antigen-recognition domain	F: MHC_I	ECOD (v294.1)
E	Ras	e3j04E1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Ras	ECOD (v294.1)
B	MHC_I	e3j04B1	A: a/b three-layered sandwiches	X: MHC antigen-recognition domain	H: MHC antigen-recognition domain	T: MHC antigen-recognition domain	F: MHC_I	ECOD (v294.1)
D	Ribosomal_S6e	e3j04D1	A: a/b three-layered sandwiches	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Ribosomal_S6e	ECOD (v294.1)
D		e3j04D3	A: a/b three-layered sandwiches	X: Rossmann-like	H: Glycosyl hydrolase domain	T: Glycosyl hydrolase domain	F:	ECOD (v294.1)
A	Ribosomal_S6e	e3j04A1	A: a/b three-layered sandwiches	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Ribosomal_S6e	ECOD (v294.1)
A		e3j04A3	A: a/b three-layered sandwiches	X: Rossmann-like	H: Glycosyl hydrolase domain	T: Glycosyl hydrolase domain	F:	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, E	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair		Domain
A, D	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, D	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
C, F	Myosin light polypeptide 6	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding nucleoside phosphate binding ADP binding purine nucleotide binding anion binding adenyl nucleotide binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding nucleoside phosphate binding ADP binding purine nucleotide binding anion binding adenyl nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding calcium ion binding myosin heavy chain binding cytoskeletal protein binding protein binding myosin binding structural molecule activity structural constituent of muscle myosin II 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 component organization organelle organization actomyosin structure organization actin cytoskeleton organization actin filament-based process cellular process cellular component organization or biogenesis cytoskeleton organization cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly muscle cell differentiation cellular component biogenesis cellular component organization organelle organization actomyosin structure organization actin cytoskeleton organization actin filament-based process cellular process cellular component organization or biogenesis cytoskeleton organization cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly muscle cell differentiation cellular component biogenesis muscle structure development striated muscle cell development cellular anatomical entity morphogenesis cellular component assembly muscle cell development cell differentiation anatomical structure development developmental process organelle assembly anatomical structure morphogenesis myofibril assembly anatomical structure formation involved in morphogenesis striated muscle cell differentiation supramolecular fiber organization	cellular anatomical structure myosin II filament myosin filament supramolecular fiber supramolecular polymer supramolecular complex protein-containing complex intracellular anatomical structure intracellular membraneless organelle actin cytoskeleton myosin complex intracellular organelle cytoskeleton organelle cellular anatomical structure myosin II filament myosin filament supramolecular fiber supramolecular polymer supramolecular complex protein-containing complex intracellular anatomical structure intracellular membraneless organelle actin cytoskeleton myosin complex intracellular organelle cytoskeleton organelle membraneless organelle myosin II complex contractile muscle fiber cytoplasm muscle myosin complex actomyosin cytosol
B, E	Myosin regulatory light chain 2, smooth muscle major isoform	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding myosin heavy chain binding cytoskeletal protein binding protein binding myosin binding structural molecule activity structural constituent of muscle myosin II binding	cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly 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 anatomical structure development actin filament-based process cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly 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 anatomical structure development actin filament-based process cellular component organization or biogenesis developmental process actomyosin structure organization actin cytoskeleton organization organelle assembly anatomical structure morphogenesis myofibril assembly organelle organization anatomical structure formation involved in morphogenesis cellular process striated muscle cell differentiation supramolecular fiber organization cytoskeleton organization	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 muscle myosin complex actin filament bundle actomyosin stress fiber contractile actin filament bundle
A, D	Myosin-11	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding structural molecule activity structural constituent of muscle myosin II binding myosin binding myosin light chain binding cation binding magnesium ion binding ion binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding structural molecule activity structural constituent of muscle myosin II binding myosin binding myosin light chain binding cation binding magnesium ion binding ion binding metal ion binding small molecule 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 ADP 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	cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly myosin filament assembly skeletal myofibril assembly 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 cellular developmental process cellular component assembly involved in morphogenesis cell development membraneless organelle assembly myosin filament assembly skeletal myofibril assembly 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 anatomical structure development actin filament-based process protein-containing complex assembly cellular component organization or biogenesis skeletal muscle myosin thick filament assembly developmental process actomyosin structure organization actin cytoskeleton organization organelle assembly protein-containing complex organization myosin filament organization anatomical structure morphogenesis striated muscle myosin thick filament assembly myofibril assembly organelle organization anatomical structure formation involved in morphogenesis cellular process striated muscle cell differentiation supramolecular fiber organization cytoskeleton organization multicellular organismal process system process smooth muscle contraction muscle contraction muscle system process cardiac muscle cell development striated muscle tissue development multicellular organism development cardiac cell development muscle tissue development system development heart development cardiac muscle tissue development animal organ development cardiac muscle cell differentiation tissue development cardiocyte differentiation circulatory system development elastic fiber assembly extracellular matrix organization extracellular matrix assembly extracellular structure organization external encapsulating structure organization	protein-containing complex intracellular anatomical structure intracellular membraneless organelle actin cytoskeleton myosin complex intracellular organelle cellular anatomical structure cytoskeleton organelle membraneless organelle contractile muscle fiber myosin II complex 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 contractile muscle fiber myosin II complex cytoplasm supramolecular fiber muscle myosin complex supramolecular polymer supramolecular complex myosin filament myofibril

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, F	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
C, F	IPR002048	EF-hand domain	Domain
C, F	IPR011992	EF-hand domain pair	Homologous Superfamily
B, E	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
B, E	IPR002048	EF-hand domain	Domain
B, E	IPR011992	EF-hand domain pair	Homologous Superfamily
B, E	IPR050403	Myosin regulatory light chain	Family
A, D	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
A, D	IPR001609	Myosin head, motor domain-like	Domain
A, D	IPR000048	IQ motif, EF-hand binding site	Binding Site
A, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A, D	IPR004009	Myosin, SH3 domain	Domain
A, D	IPR014751	DNA repair protein XRCC4-like, C-terminal	Homologous Superfamily
A, D	IPR002928	Myosin tail	Domain
A, D	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.