1CBS

CRYSTAL STRUCTURE OF CELLULAR RETINOIC-ACID-BINDING PROTEINS I AND II IN COMPLEX WITH ALL-TRANS-RETINOIC ACID AND A SYNTHETIC RETINOID


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Crystal structures of cellular retinoic acid binding proteins I and II in complex with all-trans-retinoic acid and a synthetic retinoid.

Kleywegt, G.J.Bergfors, T.Senn, H.Le Motte, P.Gsell, B.Shudo, K.Jones, T.A.

(1994) Structure 2: 1241-1258

  • DOI: https://doi.org/10.1016/s0969-2126(94)00125-1
  • Primary Citation of Related Structures:  
    1CBQ, 1CBR, 1CBS

  • PubMed Abstract: 

    Retinoic acid (RA) plays a fundamental role in diverse cellular activities. Cellular RA binding proteins (CRABPs) are thought to act by modulating the amount of RA available to nuclear RA receptors. CRABPs and cellular retinol-binding proteins (CRBPs) share a unique fold of two orthogonal beta-sheets that encapsulate their ligands. It has been suggested that a trio of residues are the prime determinants defining the high specificity of CRBPs and CRABPs for their physiological ligands.


  • Organizational Affiliation

    Department of Molecular Biology, Uppsala University, Sweden.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CELLULAR RETINOIC ACID BINDING PROTEIN TYPE II137Homo sapiensMutation(s): 0 
Gene Names: HUMAN CRABP-II
UniProt & NIH Common Fund Data Resources
Find proteins for P29373 (Homo sapiens)
Explore P29373 
Go to UniProtKB:  P29373
GTEx:  ENSG00000143320 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP29373
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
REA
Query on REA

Download Ideal Coordinates CCD File 
B [auth A]RETINOIC ACID
C20 H28 O2
SHGAZHPCJJPHSC-YCNIQYBTSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
REA BindingDB:  1CBS Kd: 200 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.65α = 90
b = 47.56β = 90
c = 77.61γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-01-26
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-07
    Changes: Data collection, Database references, Derived calculations, Other