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Cryo-EM structure of the actomyosin-V complex in the rigor state (central 1er)

Electron Microscopy
3.3Å resolution
PDB entry 7plt coloured by chain, front view.
PDB entry 7plt coloured by chain, side view.
PDB entry 7plt coloured by chain, top view.
Source organisms:
Assembly composition:
hetero tetramer (preferred)
Entry contents: 4 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero tetramer
Accessible surface area: 57434.6 Å2
Buried surface area: 6254.46 Å2
Dissociation area: 1,082.23 Å2
Dissociation energy (ΔGdiss): -4.9 kcal/mol
Dissociation entropy (TΔSdiss): 20.59 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-146991

Macromolecules

Unconventional myosin-Va
Chain: A
Length: 792 amino acids
Theoretical weight: 91.36 KDa
Source organism: Gallus gallus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q02440 (Residues: 1-792; Coverage: 43%)
Gene name: MYO5A
Pfam:
InterPro:
Unconventional myosin-Va in PDB entry 7plt, assembly 1, front view.
Unconventional myosin-Va in PDB entry 7plt, assembly 1, side view.
Unconventional myosin-Va in PDB entry 7plt, assembly 1, top view.
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Actin, alpha skeletal muscle
Chain: C
Length: 377 amino acids
Theoretical weight: 42.11 KDa
Source organism: Oryctolagus cuniculus
UniProt:
  • Canonical: P68135 (Residues: 1-377; Coverage: 100%)
Gene names: ACTA, ACTA1
Pfam: Actin
InterPro:
Actin, alpha skeletal muscle in PDB entry 7plt, assembly 1, front view.
Actin, alpha skeletal muscle in PDB entry 7plt, assembly 1, side view.
Actin, alpha skeletal muscle in PDB entry 7plt, assembly 1, top view.
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Phalloidin
Chain: H
Length: 7 amino acids
Theoretical weight: 809 Da
Source organism: Amanita phalloides
Expression system: Not provided
Phalloidin in PDB entry 7plt, assembly 1, front view.
Phalloidin in PDB entry 7plt, assembly 1, side view.
Phalloidin in PDB entry 7plt, assembly 1, top view.
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Myosin light chain 6B
Chain: B
Length: 151 amino acids
Theoretical weight: 17.09 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P14649 (Residues: 58-208; Coverage: 73%)
Gene names: MLC1SA, MYL6B
InterPro:
Myosin light chain 6B in PDB entry 7plt, assembly 1, front view.
Myosin light chain 6B in PDB entry 7plt, assembly 1, side view.
Myosin light chain 6B in PDB entry 7plt, assembly 1, top view.
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