PDBe 3pn7

X-ray diffraction
2.25Å resolution

Visualizing new hinges and a potential major source of compliance in the lever arm of myosin

Released:

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Myosin heavy chain Chains: A, D
Molecule details ›
Chains: A, D
Length: 69 amino acids
Theoretical weight: 8.6 KDa
Source organism: Placopecten magellanicus
UniProt:
  • Canonical: Q26080 (Residues: 771-839; Coverage: 4%)
Myosin essential light chain Chains: C, F
Molecule details ›
Chains: C, F
Length: 156 amino acids
Theoretical weight: 17.68 KDa
Source organism: Placopecten magellanicus
UniProt:
  • Canonical: Q26066 (Residues: 2-157; Coverage: 99%)
Sequence domains: EF-hand domain pair
Structure domains: EF-hand
Myosin regulatory light chain Chains: B, E
Molecule details ›
Chains: B, E
Length: 161 amino acids
Theoretical weight: 18.4 KDa
Source organism: Placopecten magellanicus
UniProt:
  • Canonical: Q26069 (Residues: 2-162; Coverage: 99%)
Sequence domains: EF-hand domain
Structure domains: EF-hand

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P1
Unit cell:
a: 50.737Å b: 68.779Å c: 79.305Å
α: 77.41° β: 85.94° γ: 73.61°
R-values:
R R work R free
0.191 0.191 0.241