1LAG

STRUCTURAL BASES FOR MULTIPLE LIGAND SPECIFICITY OF THE PERIPLASMIC LYSINE-, ARGININE-, ORNITHINE-BINDING PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.06 Å
  • R-Value Work: 0.162 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural basis for multiple ligand specificity of the periplasmic lysine-, arginine-, ornithine-binding protein.

Oh, B.H.Ames, G.F.Kim, S.H.

(1994) J.Biol.Chem. 269: 26323-26330

  • Primary Citation of Related Structures:  1LAF, 1LAH

  • PubMed Abstract: 
  • The substrate-binding site of a protein with multiple specificity should satisfy geometric and energetic complementarity for several different substrates. The structural basis of the multiple ligand specificity of the periplasmic lysine-, arginine-, ...

    The substrate-binding site of a protein with multiple specificity should satisfy geometric and energetic complementarity for several different substrates. The structural basis of the multiple ligand specificity of the periplasmic lysine-, arginine-, ornithine-binding protein (LAO) was investigated by determining and analyzing the structures of the protein unliganded and liganded with each of the three high-affinity ligands (L-lysine, L-arginine, and L-ornithine) and with one low-affinity ligand (L-histidine). The geometric complementarity is achieved primarily by virtue of the large size of the ligand-binding site which can accommodate the maximum common volume of the four ligands plus three water molecules. The optimization of energetic complementarity is achieved by the relocation of protein-bound water molecules and by the movement of the Asp-11 side chain. The structure of the LAO-histidine complex indicates that the 30-fold reduced affinity of the protein for histidine is primarily due to unavailability of one ionic interaction of the histidine side chain with the protein which is present in the other three complexes.


    Related Citations: 
    • Three-Dimensional Structures of the Periplasmic Lysine-, Arginine-, Ornithine-Binding Protein with and without a Ligand
      Oh, B.-H.,Pandit, J.,Kang, C.-H.,Nikaido, K.,Gokcen, S.,Ames, G.F.-L.,Kim, S.-H.
      (1993) J.Biol.Chem. 268: 11348


    Organizational Affiliation

    Department of Chemistry, Lawrence Berkeley Laboratory, Berkeley, California.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LYSINE, ARGININE, ORNITHINE-BINDING PROTEIN
E
238Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)Gene Names: argT
Find proteins for P02911 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Go to UniProtKB:  P02911
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HIS
Query on HIS

Download SDF File 
Download CCD File 
E
HISTIDINE
C6 H10 N3 O2
HNDVDQJCIGZPNO-YFKPBYRVSA-O
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
HISKd: 500 nM BINDINGMOAD
HISKd: 500 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.06 Å
  • R-Value Work: 0.162 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 37.490α = 90.00
b = 58.190β = 90.00
c = 117.650γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1993-10-06 
  • Released Date: 1995-07-10 
  • Deposition Author(s): Kim, S.-H., Oh, B.-H.

Revision History 

  • Version 1.0: 1995-07-10
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other