PDBe 1scm

X-ray diffraction
2.8Å resolution

STRUCTURE OF THE REGULATORY DOMAIN OF SCALLOP MYOSIN AT 2.8 ANGSTROMS RESOLUTION

Released:

Function and Biology Details

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: 60 amino acids
Theoretical weight: 7.48 KDa
Source organism: Argopecten irradians
Expression system: Not provided
UniProt:
  • Canonical: P24733 (Residues: 777-836; Coverage: 3%)
Structure domains: Myosin, subunit A
Myosin essential light chain, striated adductor muscle Chain: C
Molecule details ›
Chain: C
Length: 149 amino acids
Theoretical weight: 16.79 KDa
Source organism: Argopecten irradians
Expression system: Not provided
UniProt:
  • Canonical: P07291 (Residues: 5-153; Coverage: 95%)
Sequence domains: EF-hand domain pair
Structure domains: EF-hand
Myosin regulatory light chain, striated adductor muscle Chain: B
Molecule details ›
Chain: B
Length: 145 amino acids
Theoretical weight: 16.52 KDa
Source organism: Argopecten irradians
Expression system: Not provided
UniProt:
  • Canonical: P13543 (Residues: 13-157; Coverage: 92%)
Sequence domains: EF-hand domain
Structure domains: EF-hand

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE
Spacegroup: P21
Unit cell:
a: 52.5Å b: 87Å c: 55.5Å
α: 90° β: 114.5° γ: 90°
R-values:
R R work R free
0.201 0.201 not available
Expression system: Not provided