3JAX

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF02736	e3jaxA1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF02736	ECOD (1.6)
A	PF00612,PF01576	e3jaxA2	A: alpha bundles	X: Myosin VI lever arm (From Topology)	H: Myosin VI lever arm (From Topology)	T: Myosin VI lever arm	F: PF00612,PF01576	ECOD (1.6)
A	PF00063	e3jaxA3	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)
B	PF02736	e3jaxB2	A: beta barrels	X: SH3	H: SH3	T: SH3	F: PF02736	ECOD (1.6)
B	PF00612,PF01576	e3jaxB1	A: alpha bundles	X: Myosin VI lever arm (From Topology)	H: Myosin VI lever arm (From Topology)	T: Myosin VI lever arm	F: PF00612,PF01576	ECOD (1.6)
B	PF00063	e3jaxB3	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)
D	F_UNCLASSIFIED	e3jaxD1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: F_UNCLASSIFIED	ECOD (1.6)
C	F_UNCLASSIFIED	e3jaxC1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: F_UNCLASSIFIED	ECOD (1.6)
E	F_UNCLASSIFIED	e3jaxE1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: F_UNCLASSIFIED	ECOD (1.6)
E	PF13405	e3jaxE2	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: PF13405	ECOD (1.6)
F	F_UNCLASSIFIED	e3jaxF1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: F_UNCLASSIFIED	ECOD (1.6)
F	PF13405	e3jaxF2	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: PF13405	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B	PF00612	IQ calmodulin-binding motif (IQ)	IQ calmodulin-binding motif	-	Motif
A, B	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, B	PF00063	Myosin head (motor domain) (Myosin_head)	Myosin head (motor domain)	-	Domain
E, F	PF13833	EF-hand domain pair (EF-hand_8)	EF-hand domain pair	-	Domain
E, F	PF13405	EF-hand domain (EF-hand_6)	EF-hand domain	-	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	myosin 2 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 motor activity cytoskeletal protein binding actin binding protein-containing complex binding protein binding actin filament binding	-	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
C, D	smooth muscle myosin essential light chain	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	-	-
E, F	myosin regulatory light chain	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	-	-

Chains	Accession	Name	Type
A, B	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
A, B	IPR004009	Myosin, N-terminal, SH3-like	Domain
A, B	IPR008989	Myosin S1 fragment, N-terminal	Homologous Superfamily
A, B	IPR000048	IQ motif, EF-hand binding site	Binding Site
A, B	IPR001609	Myosin head, motor domain	Domain
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C, D	IPR002048	EF-hand domain	Domain
C, D	IPR011992	EF-hand domain pair	Homologous Superfamily
E, F	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
E, F	IPR002048	EF-hand domain	Domain
E, F	IPR011992	EF-hand domain pair	Homologous Superfamily