PDBe 1kqm

X-ray diffraction
3Å resolution

SCALLOP MYOSIN S1-AMPPNP IN THE ACTIN-DETACHED CONFORMATION

Released:

Function and Biology Details

Biochemical function:
  • not assigned
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, striated muscle Chain: A
Molecule details ›
Chain: A
Length: 835 amino acids
Theoretical weight: 95.32 KDa
Source organism: Argopecten irradians
UniProt:
  • Best match: P24733 (Residues: 1-835)
Myosin essential light chain, striated adductor muscle Chain: C
Molecule details ›
Chain: C
Length: 156 amino acids
Theoretical weight: 17.64 KDa
Source organism: Argopecten irradians
UniProt:
  • Best match: P07291 (Residues: 2-157)
Myosin regulatory light chain, striated adductor muscle Chain: B
Molecule details ›
Chain: B
Length: 156 amino acids
Theoretical weight: 17.56 KDa
Source organism: Argopecten irradians
UniProt:
  • Best match: P13543 (Residues: 2-157)

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X26C
Spacegroup: P1
Unit cell:
a: 52.396Å b: 58.642Å c: 148.873Å
α: 81.64° β: 82.39° γ: 87.43°
R-values:
R R work R free
0.298 0.277 0.316