1KK8 | pdb_00001kk8

SCALLOP MYOSIN (S1-ADP-BeFx) IN THE ACTIN-DETACHED CONFORMATION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1kk8a1	All beta proteins	SH3-like barrel	Myosin S1 fragment, N-terminal domain	Myosin S1 fragment, N-terminal domain	Myosin S1 fragment, N-terminal domain	(Argopecten irradians ) [TaxId: 31199 ],	SCOPe (2.08)
A	d1kk8a2	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Motor proteins	Myosin S1, motor domain	(Argopecten irradians ) [TaxId: 31199 ],	SCOPe (2.08)
C	d1kk8c_	All alpha proteins	EF Hand-like	EF-hand	Calmodulin-like	Myosin Regulatory Chain	(Argopecten irradians ) [TaxId: 31199 ],	SCOPe (2.08)
B	d1kk8b_	All alpha proteins	EF Hand-like	EF-hand	Calmodulin-like	Myosin Essential Chain	(Argopecten irradians ) [TaxId: 31199 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Myosin s1 fragment, N-terminal domain	8030396	4001735	SCOP2 (2022-06-29)
A	SCOP2 Family	Myosin motor domain	8030398	4004054	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Myosin s1 fragment, N-terminal domain	8042775	3000319	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	P-loop motor domain	8042777	3002036	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	EF-hand	8037362	3001983	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	EF-hand	8037349	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)
A	Myosin_N	e1kk8A1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: Myosin_N	ECOD (1.6)
A	KOG0161_1st	e1kk8A3	A: alpha bundles	X: Myosin VI lever arm (From Topology)	H: Myosin VI lever arm (From Topology)	T: Myosin VI lever arm	F: KOG0161_1st	ECOD (1.6)
A	Myosin_head	e1kk8A4	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Myosin_head	ECOD (1.6)
C	EF-hand_7_8	e1kk8C4	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_8	ECOD (1.6)
C	EF-hand_7_4	e1kk8C3	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_4	ECOD (1.6)
B	EF-hand_7_8	e1kk8B2	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_8	ECOD (1.6)
B	EF-hand_7_4	e1kk8B1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_4	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.30.30.360	Mainly Beta	Roll	SH3 type barrels.	Myosin S1 fragment, N-terminal	CATH (utative)
A	1.20.58.530	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (utative)
C	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.2.0)
B	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.2.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Myosin Heavy Chain, Striated 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 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	-	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
C	Myosin Essential Light Chain,Striated adductor muscle	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	-	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
B	Myosin Regulatory Light Chain, Striated adductor muscle	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	-	intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton myosin complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
A	IPR004009	Myosin, SH3 domain	Domain
A	IPR014751	DNA repair protein XRCC4-like, C-terminal	Homologous Superfamily
A	IPR001609	Myosin head, motor domain-like	Domain
A	IPR002928	Myosin tail	Domain
A	IPR008989	Myosin S1 fragment, N-terminal	Homologous Superfamily
A	IPR000048	IQ motif, EF-hand binding site	Binding Site
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C	IPR050230	Calmodulin/Myosin light chain/Troponin C-like	Family
C	IPR002048	EF-hand domain	Domain
C	IPR011992	EF-hand domain pair	Homologous Superfamily
B	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
B	IPR002048	EF-hand domain	Domain
B	IPR011992	EF-hand domain pair	Homologous Superfamily
B	IPR050403	Myosin regulatory light chain	Family

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.