1OLA

THE STRUCTURAL BASIS OF MULTISPECIFICITY IN THE OLIGOPEPTIDE-BINDING PROTEIN OPPA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structural basis of sequence-independent peptide binding by OppA protein.

Tame, J.R.Murshudov, G.N.Dodson, E.J.Neil, T.K.Dodson, G.G.Higgins, C.F.Wilkinson, A.J.

(1994) Science 264: 1578-1581

  • Also Cited By: 1QKA, 1QKB

  • PubMed Abstract: 
  • Specific protein-ligand interactions are critical for cellular function, and most proteins select their partners with sharp discrimination. However, the oligopeptide-binding protein of Salmonella typhimurium (OppA) binds peptides of two to five amino ...

    Specific protein-ligand interactions are critical for cellular function, and most proteins select their partners with sharp discrimination. However, the oligopeptide-binding protein of Salmonella typhimurium (OppA) binds peptides of two to five amino acid residues without regard to sequence. The crystal structure of OppA reveals a three-domain organization, unlike other periplasmic binding proteins. In OppA-peptide complexes, the ligands are completely enclosed in the protein interior, a mode of binding that normally imposes tight specificity. The protein fulfills the hydrogen bonding and electrostatic potential of the ligand main chain and accommodates the peptide side chains in voluminous hydrated cavities.


    Related Citations: 
    • Structure Determination of Oppa at 2.3 Angstroms Resolution Using Multiple Wavelength Anomalous Methods
      Glover, I.D.,Denny, R.,Nguti, N.D.,Mcsweeney, S.,Thompson, A.,Dodson, E.,Wilkinson, A.J.,Tame, J.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    Department of Chemistry, University of York, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
OLIGO-PEPTIDE BINDING PROTEIN
A
517Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)Gene Names: oppA
Find proteins for P06202 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Go to UniProtKB:  P06202
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PEPTIDE VAL-LYS-PRO-GLY
B
4N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IUM
Query on IUM

Download SDF File 
Download CCD File 
A
URANYL (VI) ION
O2 U
IZLHQJIUOZHTLW-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 106.500α = 90.00
b = 74.500β = 90.00
c = 70.000γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-07-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance