4AZD

T57V mutant of aspartate decarboxylase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.62 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.185 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Threonine 57 is Required for the Post-Translational Activation of Escherichia Coli Aspartate Alpha-Decarboxylase

Webb, M.E.Yorke, B.A.Kershaw, T.Lovelock, S.Lobley, C.M.C.Kilkenny, M.L.Smith, A.G.Blundell, T.L.Pearson, A.R.Abell, C.

(2014) Acta Crystallogr.,Sect.D 70: 1166

  • DOI: 10.1107/S1399004713034275

  • PubMed Abstract: 
  • Aspartate α-decarboxylase is a pyruvoyl-dependent decarboxylase required for the production of β-alanine in the bacterial pantothenate (vitamin B5) biosynthesis pathway. The pyruvoyl group is formed via the intramolecular rearrangement of a serine re ...

    Aspartate α-decarboxylase is a pyruvoyl-dependent decarboxylase required for the production of β-alanine in the bacterial pantothenate (vitamin B5) biosynthesis pathway. The pyruvoyl group is formed via the intramolecular rearrangement of a serine residue to generate a backbone ester intermediate which is cleaved to generate an N-terminal pyruvoyl group. Site-directed mutagenesis of residues adjacent to the active site, including Tyr22, Thr57 and Tyr58, reveals that only mutation of Thr57 leads to changes in the degree of post-translational activation. The crystal structure of the site-directed mutant T57V is consistent with a non-rearranged backbone, supporting the hypothesis that Thr57 is required for the formation of the ester intermediate in activation.


    Organizational Affiliation

    Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ASPARTATE 1-DECARBOXYLASE
A, B
143Escherichia coli (strain K12)Mutation(s): 1 
Gene Names: panD
EC: 4.1.1.11
Find proteins for P0A790 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A790
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MLI
Query on MLI

Download SDF File 
Download CCD File 
A, B
MALONATE ION
C3 H2 O4
OFOBLEOULBTSOW-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.62 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.185 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 69.920α = 90.00
b = 69.920β = 90.00
c = 217.720γ = 120.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOSFLMdata reduction
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-07-25
    Type: Initial release
  • Version 1.1: 2014-04-09
    Type: Database references
  • Version 1.2: 2014-04-16
    Type: Database references