1LNS

Crystal Structure Analysis of the X-Prolyl Dipeptidyl Aminopeptidase From Lactococcus lactis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The Structural Basis for Catalysis and Specificity of the X-prolyl dipepdidyl aminopeptidase from Lactococcus lactis

Rigolet, P.Mechin, I.Delage, M.M.Chich, J.F.

(2002) Structure 10: 1383-1394


  • PubMed Abstract: 
  • The X-prolyl dipeptidyl aminopeptidase (X-PDAP) from Lactococcus lactis is a dimeric enzyme catalyzing the removal of Xaa-Pro dipeptides from the N terminus of peptides. The structure of the enzyme was solved at 2.2 A resolution and provides a model ...

    The X-prolyl dipeptidyl aminopeptidase (X-PDAP) from Lactococcus lactis is a dimeric enzyme catalyzing the removal of Xaa-Pro dipeptides from the N terminus of peptides. The structure of the enzyme was solved at 2.2 A resolution and provides a model for the peptidase family S15. Each monomer is composed of four domains. The larger one presents an alpha/beta hydrolase fold and comprises the active site serine. The specificity pocket is mainly built by residues from a small helical domain which is, together with the N-terminal domain, essential for dimerization. A C-terminal moiety probably plays a role in the tropism of X-PDAP toward the cellular membrane. These results give new insights for further exploration of the role of the enzymes of the SC clan.


    Organizational Affiliation

    L.U.R.E. Centre Universitaire Paris-Sud, Bât. 209D-BP 34, F-91898 Orsay Cedex, France. rigolet@lure.u-psud.fr




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
X-PROLYL DIPEPTIDYL AMINOPEPTIDASE
A
763Lactococcus lactis subsp. cremorisGene Names: pepX
EC: 3.4.14.11
Find proteins for P22346 (Lactococcus lactis subsp. cremoris)
Go to UniProtKB:  P22346
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.184 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 92.500α = 90.00
b = 102.500β = 90.00
c = 101.500γ = 90.00
Software Package:
Software NamePurpose
CCP4data scaling
ROTAVATAdata reduction
MOSFLMdata reduction
ROTAVATAdata scaling
MLPHAREphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-11-06
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description