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3J4K

Cryo-EM structures of the actin:tropomyosin filament reveal the mechanism for the transition from C- to M-state

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C, D, E
(A, B, C, D, E)
Actin, alpha skeletal musclepolymer37541862.65UniProt (P68135)
Pfam (PF00022)
Oryctolagus cuniculus (rabbit)Alpha-actin-1
2F, G
(F, G)
tropomyosinpolymer13611592.32Gallus gallus (chicken)
3H, I, J, K, L
(A, B, C, D, E)
ADENOSINE-5'-DIPHOSPHATEnon-polymer427.25Chemie (ADP)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains7
Total formula weight232497.6
Non-Polymers*Number of molecules5
Total formula weight2136.0
All*Total formula weight234633.6
*Water molecules are not included.

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PDB entries from 2025-06-11

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