4I9R

Crystal Structure of the R111K:R132L:Y134F:T54V:R59W:A32W Mutant of the Cellular Retinoic Acid Binding Protein Type II in Complex with All-Trans Retinal at 2.6 Angstrom Resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Rational Design of a Colorimetric pH Sensor from a Soluble Retinoic Acid Chaperone.

Berbasova, T.Nosrati, M.Vasileiou, C.Wang, W.Lee, K.S.Yapici, I.Geiger, J.H.Borhan, B.

(2013) J Am Chem Soc 135: 16111-16119

  • DOI: 10.1021/ja404900k
  • Primary Citation of Related Structures:  
    4I9R, 4I9S, 4M6S, 4M7M

  • PubMed Abstract: 
  • Reengineering of cellular retinoic acid binding protein II (CRABPII) to be capable of binding retinal as a protonated Schiff base is described. Through rational alterations of the binding pocket, electrostatic perturbations of the embedded retinylide ...

    Reengineering of cellular retinoic acid binding protein II (CRABPII) to be capable of binding retinal as a protonated Schiff base is described. Through rational alterations of the binding pocket, electrostatic perturbations of the embedded retinylidene chromophore that favor delocalization of the iminium charge lead to exquisite control in the regulation of chromophoric absorption properties, spanning the visible spectrum (474-640 nm). The pKa of the retinylidene protonated Schiff base was modulated from 2.4 to 8.1, giving rise to a set of proteins of varying colors and pH sensitivities. These proteins were used to demonstrate a concentration-independent, ratiometric pH sensor.


    Organizational Affiliation

    Department of Chemistry, Michigan State University , East Lansing, Michigan 48824, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cellular retinoic acid-binding protein 2A137Homo sapiensMutation(s): 6 
Gene Names: CRABP2
Find proteins for P29373 (Homo sapiens)
Explore P29373 
Go to UniProtKB:  P29373
NIH Common Fund Data Resources
PHAROS  P29373
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RET
Query on RET

Download CCD File 
A
RETINAL
C20 H28 O
NCYCYZXNIZJOKI-OVSJKPMPSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
RETKd :  112   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.199 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.483α = 90
b = 57.483β = 90
c = 109.799γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
MOLREPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-09
    Type: Initial release
  • Version 1.1: 2014-02-19
    Changes: Database references
  • Version 1.2: 2018-01-31
    Changes: Advisory, Experimental preparation