3NNK

Biochemical and Structural Characterization of a Ureidoglycine Aminotransferase in the Klebsiella pneumoniae Uric Acid Catabolic Pathway

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.58 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Biochemical and Structural Characterization of a Ureidoglycine Aminotransferase in the Klebsiella pneumoniae Uric Acid Catabolic Pathway.

French, J.B., Ealick, S.E.

(2010) Biochemistry 49: 5975-5977

  • DOI: 10.1021/bi1006755

  • PubMed Abstract: 

    • Many plants, fungi, and bacteria catabolize allantoin as a mechanism for nitrogen assimilation. Recent reports have shown that in plants and some bacteria the product of hydrolysis of allantoin by allantoinase is the unstable intermediate ureidoglyci ...

    Many plants, fungi, and bacteria catabolize allantoin as a mechanism for nitrogen assimilation. Recent reports have shown that in plants and some bacteria the product of hydrolysis of allantoin by allantoinase is the unstable intermediate ureidoglycine. While this molecule can spontaneously decay, genetic analysis of some bacterial genomes indicates that an aminotransferase may be present in the pathway. Here we present evidence that Klebsiella pneumoniae HpxJ is an aminotransferase that preferentially converts ureidoglycine and an alpha-keto acid into oxalurate and the corresponding amino acid. We determined the crystal structure of HpxJ, allowing us to present an explanation for substrate specificity.

    Organizational Affiliation: 

    Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ureidoglycine-glyoxylate aminotransferase
A, B, C, D, E, F, G, H, J, K, L, M, O, P, R, S
411Klebsiella michiganensis M5alMutation(s): 0 
Gene Names: hpxJ
Find proteins for B5B0L4 (Klebsiella michiganensis M5al)
Go to UniProtKB:  B5B0L4
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
LLP
Query on LLP
A, B, C, D, E, F, G, H, J, K, L, M, O, P, R, S
L-PEPTIDE LINKINGC14 H22 N3 O7 PLYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.58 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.217 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 142.150α = 90.00
b = 149.203β = 90.28
c = 197.996γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data scaling
MOLREPphasing
ADSCdata collection
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-07-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance