1AQB

RETINOL-BINDING PROTEIN (RBP) FROM PIG PLASMA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of pig plasma retinol-binding protein at 1.65 A resolution.

Zanotti, G.Panzalorto, M.Marcato, A.Malpeli, G.Folli, C.Berni, R.

(1998) Acta Crystallogr.,Sect.D 54: 1049-1052


  • PubMed Abstract: 
  • The crystal structure of pig plasma retinol-binding protein (RBP) has been determined at 1.65 A resolution. The space group is P212121, with a = 45.81 (4), b = 53.14 (5), c = 72.97 (8) A and one protein molecule in the asymmetric unit. The structure ...

    The crystal structure of pig plasma retinol-binding protein (RBP) has been determined at 1.65 A resolution. The space group is P212121, with a = 45.81 (4), b = 53.14 (5), c = 72.97 (8) A and one protein molecule in the asymmetric unit. The structure has been solved using the molecular replacement method and refined with restrained least squares to an R factor of 0.1844 and an Rfree of 0.237 for 18 874 and 1001 independent reflections, respectively. The relatively high resolution structure of pig holoRBP has revealed some new structural details. Moreover, it has provided a description of the binding site for Cd2+, a metal ion which is required for protein crystallization. The hepta-coordination of the RBP-bound cadmium ion involves different residues of two symmetry-related RBP molecules, consistent with the participation of the cation in intermolecular interactions that in turn promote protein crystallization.


    Related Citations: 
    • Crystal Structure of Liganded and Unliganded Forms of Bovine Plasma Retinol-Binding Protein
      Zanotti, G.,Berni, R.,Monaco, H.L.
      (1993) J.Biol.Chem. 268: 10728
    • Crystal Structure of the Trigonal Form of Human Plasma Retinol-Binding Protein at 2.5 A Resolution
      Zanotti, G.,Ottonello, S.,Berni, R.,Monaco, H.L.
      (1993) J.Mol.Biol. 230: 613


    Organizational Affiliation

    Department of Organic Chemistry, University of Padova and Biopolymer Research Center, CNR, 35131 Padova, Italy. zanotti@pdchor.chor.unipd.it




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RETINOL-BINDING PROTEIN
A
183Sus scrofaGene Names: RBP4
Find proteins for P27485 (Sus scrofa)
Go to Gene View: RBP4
Go to UniProtKB:  P27485
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RTL
Query on RTL

Download SDF File 
Download CCD File 
A
RETINOL
C20 H30 O
FPIPGXGPPPQFEQ-OVSJKPMPSA-N
 Ligand Interaction
CD
Query on CD

Download SDF File 
Download CCD File 
A
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.237 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 45.810α = 90.00
b = 53.137β = 90.00
c = 72.966γ = 90.00
Software Package:
Software NamePurpose
SAINTdata reduction
SAINTdata scaling
SHELXL-93phasing
SHELXL-93refinement
SHELXL-93model building
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-01-28
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance