Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyMyosin s1 fragment, N-terminal domain 8037432 3000319 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyP-loop motor domain 8037429 3002036 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AMyosin_Ne1vomA4 A: beta barrelsX: SH3H: SH3T: SH3F: Myosin_NECOD (1.6)
AMyosin_heade1vomA1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Myosin_headECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF02736Myosin N-terminal SH3-like domain (Myosin_N)Myosin N-terminal SH3-like domainThis 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
PF00063Myosin head (motor domain) (Myosin_head)Myosin head (motor domain)- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
MYOSIN

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
myosin ATPase  M-CSA #534

Myosin is the key enzyme in transducing the energy from ATP hydrolysis into directed movement. Muscle contraction involves the relative movements of myosin and actin filaments. This movement is achieved by the interaction of the globular heads of myosin with actin, and is driven by the hydrolysis of ATP in the myosin head domains.

Defined by 8 residues: SER:A-181GLY:A-182THR:A-186ASN:A-233SER:A-236SER:A-237GLY:A-457GLU:A-459
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