1N4K

Crystal structure of the inositol 1,4,5-trisphosphate receptor binding core in complex with IP3

Structural Biology Knowledgebase: 1N4K SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.248
  • R-Value Work: 0.224

Literature

Macromolecules
Sequence Display for 1N4K

Classification: MEMBRANE PROTEIN

Total Structure Weight: 44023.79

Macromolecule Entities
Molecule Chains Length Organism Details
Inositol 1,4,5-trisphosphate receptor type 1 A 381 Mus musculus Fragment: IP3-binding core
Gene Name(s): Itpr1 Insp3r Pcd6 Pcp1
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
I3P
Query on I3P

A D-MYO-INOSITOL-1,4,5-TRIPHOSPHATE
C6 H15 O15 P3
MMWCIQZXVOZEGG-XJTPDSDZSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
I3P N/A in BindingDB
Kd: 0.09 nM  BindingMOAD
Kd: 0.09 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.248
  • R-Value Work: 0.224
  • Space Group: C 2 2 21

Unit Cell:

Length (Å) Angle (°)
a = 44.10 α = 90.00
b = 90.42 β = 90.00
c = 207.12 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2002-10-31
  • Released Date: 2002-12-25
  • Deposition author(s): Bosanac, I., Alattia, J.R., Mal, T.K., Chan, J., Talarico, S., Tong, F.K., Tong, K.I., Yoshikawa, F., Furuichi, T., Iwai, M., Michikawa, T., Mikoshiba, K., Ikura, M.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4