X-ray diffraction
1.9Å resolution

Crystal Structure of Ca2+/Calmodulin bound to NMDA Receptor NR1C1 peptide


Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Calmodulin-3 Chain: A
Molecule details ›
Chain: A
Length: 148 amino acids
Theoretical weight: 16.72 KDa
Source organism: Rattus norvegicus
Expression system: Escherichia coli
  • Canonical: P0DP31 (Residues: 2-149; Coverage: 99%)
Gene names: CaMIII, Calm3, Cam3, Camc
Sequence domains: EF-hand domain pair
Structure domains: EF-hand
Glutamate receptor ionotropic, NMDA 1 Chain: B
Molecule details ›
Chain: B
Length: 24 amino acids
Theoretical weight: 2.77 KDa
Source organism: Homo sapiens
Expression system: Not provided
  • Canonical: Q05586 (Residues: 875-898; Coverage: 3%)
Gene names: GRIN1, NMDAR1

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 17-ID
Spacegroup: P3221
Unit cell:
a: 40.371Å b: 40.371Å c: 175.765Å
α: 90° β: 90° γ: 120°
R R work R free
0.207 0.206 0.248
Expression systems:
  • Escherichia coli
  • Not provided