Annotations: 6XE9

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	EF-hand	8102092	3001983	SCOP2B (2022-06-29)
F [auth O]	SCOP2B Superfamily	EF-hand	8102092	3001983	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	EF-hand	8102194	3001983	SCOP2B (2022-06-29)
E [auth N]	SCOP2B Superfamily	EF-hand	8102194	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)
C	Ribosomal_L36	e6xe9C1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: Bromodomain	T: Bromodomain	F: Ribosomal_L36	ECOD (v294.1)
F [auth O]	Ribosomal_L36	e6xe9O1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: Bromodomain	T: Bromodomain	F: Ribosomal_L36	ECOD (v294.1)
B	Ribosomal_L36	e6xe9B1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: Bromodomain	T: Bromodomain	F: Ribosomal_L36	ECOD (v294.1)
E [auth N]	Ribosomal_L36	e6xe9N1	A: a/b three-layered sandwiches	X: CNF1/YfiH-like putative cysteine hydrolases	H: Bromodomain	T: Bromodomain	F: Ribosomal_L36	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C, F [auth O]	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair		Domain
A, D [auth M]	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 [auth M]	PF00063	Myosin head (motor domain) (Myosin_head)	Myosin head (motor domain)		Domain
A, D [auth M]	PF01576	Myosin tail (Myosin_tail_1)	Myosin tail	-	Coiled-coil

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, F [auth O]	Myosin light chain 9	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	-	-
B, E [auth N]	Myosin light chain smooth muscle isoform	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding structural molecule activity structural constituent of muscle	-	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex intracellular membraneless organelle actin cytoskeleton myosin complex intracellular organelle cytoskeleton organelle membraneless organelle myosin II complex
A, D [auth M]	Myosin II heavy chain (smooth muscle)	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 ADP binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding actin filament 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 component organization cellular process cellular component organization or biogenesis supramolecular fiber organization organelle organization actomyosin structure organization actin cytoskeleton organization actin filament-based process 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 myosin filament

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, F [auth O]	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
C, F [auth O]	IPR002048	EF-hand domain	Domain
C, F [auth O]	IPR011992	EF-hand domain pair	Homologous Superfamily
C, F [auth O]	IPR050403	Myosin regulatory light chain	Family
B, E [auth N]	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
B, E [auth N]	IPR002048	EF-hand domain	Domain
B, E [auth N]	IPR011992	EF-hand domain pair	Homologous Superfamily
A, D [auth M]	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
A, D [auth M]	IPR004009	Myosin, SH3 domain	Domain
A, D [auth M]	IPR014751	DNA repair protein XRCC4-like, C-terminal	Homologous Superfamily
A, D [auth M]	IPR001609	Myosin head, motor domain-like	Domain
A, D [auth M]	IPR002928	Myosin tail	Domain
A, D [auth M]	IPR008989	Myosin S1 fragment, N-terminal	Homologous Superfamily
A, D [auth M]	IPR000048	IQ motif, EF-hand binding site	Binding Site
A, D [auth M]	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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.