› 5xa1

X-ray diffraction
6.2Å resolution

Crystal structure of inositol 1,4,5-trisphosphate receptor cytosolic domain with inositol 1,4,5-trisphosphate

Released:
DOI: 10.2210/pdb5xa1/pdb
PDB entry 5xa1 coloured by chain, front view.
PDB entry 5xa1 coloured by chain, side view.
PDB entry 5xa1 coloured by chain, top view.
Source organism: Mus musculus
Primary publication:
IP3-mediated gating mechanism of the IP3 receptor revealed by mutagenesis and X-ray crystallography.
Hamada K, Miyatake H, Terauchi A, Mikoshiba K
Proc Natl Acad Sci U S A 114 4661-4666 (2017)
PMID: 28416699

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-145968 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Inositol 1,4,5-trisphosphate-gated calcium channel ITPR1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 1581 amino acids
Theoretical weight: 181.01 KDa
Source organism: Mus musculus
Expression system: Spodoptera
UniProt:
  • Canonical: P11881 (Residues: 1-1581; Coverage: 58%)
Gene names: Insp3r, Itpr1, Pcd6, Pcp1
Sequence domains:

Ligands and Environments

1 bound ligand:
Ligand I3P 2 x I3P
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL26B2
Spacegroup: P42
Unit cell:
a: 126.803Å b: 126.803Å c: 367.784Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.361 0.36 0.382
Expression system: Spodoptera

Quick links

Citations

16 review citations

Intracellular calcium release channels: an update.
Santulli et al. (2017)
15 more

3 mentions without citation

IP3-mediated gating mechanism of the IP3 receptor revealed by mutagenesis and X-ray crystallography.
Hamada et al. (2017)
2 more