5YKR

Crystal structure of a glutamate-1-semialdehyde-aminomutase from Pseudomonas aeruginosa PAO1

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.44 Å
  • R-Value Free: 0.155 
  • R-Value Work: 0.120 
  • R-Value Observed: 0.122 

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Literature

Crystal structure of a glutamate-1-semialdehyde-aminomutase from Pseudomonas aeruginosa PAO1.

Li, S., Lou, X., Xu, Y., Teng, X., Che, S., Liu, R., Bartlam, M.

(2018) Biochem Biophys Res Commun 500: 804-809

  • DOI: 10.1016/j.bbrc.2018.04.163
  • Primary Citation of Related Structures:  
    5YKR, 5YKT

  • PubMed Abstract: 

    • The C5 pathway in bacteria is responsible for the synthesis of 5-aminolevulinic acid, which forms the core skeleton of cofactors required for metabolism. One of the key actors in this pathway is a pyridoxamine-5'-phosphate (PMP)/pyridoxal-5'-phosphate (PLP) dependent enzyme called glutamate-1-semialdehyde aminomutase (GSAM) ...

    The C5 pathway in bacteria is responsible for the synthesis of 5-aminolevulinic acid, which forms the core skeleton of cofactors required for metabolism. One of the key actors in this pathway is a pyridoxamine-5'-phosphate (PMP)/pyridoxal-5'-phosphate (PLP) dependent enzyme called glutamate-1-semialdehyde aminomutase (GSAM). In this study, we crystallized the expression product of the uncharacterized pa4088 gene from the opportunistic pathogen Pseudomonas aeruginosa PAO1. The resulting high-resolution structure confirms it to be a member of the GSAM family. Continuous electron density indicates the presence of a PLP cofactor with a Schiff base linkage between the PLP cofactor and the ε-amino group of Lys286. A crystal structure of a K286A mutant in complex with PMP is also reported. As GSAM enzymes are not present in mammalian cells, this work provides a starting point for the investigation of GSAM as a target for drug development against P. aeruginosa infection.

    Organizational Affiliation: 

    College of Life Sciences, Nankai University, Tianjin, China; State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China. Electronic address: bartlam@nankai.edu.cn.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Probable aminotransferaseA, B461Pseudomonas aeruginosa PAO1Mutation(s): 0 
Gene Names: PA4088
EC: 5.4.3.8
UniProt
Find proteins for Q9HWU0 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore Q9HWU0 
Go to UniProtKB:  Q9HWU0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9HWU0
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
LLP
Query on LLP		A, B L-PEPTIDE LINKINGC14 H22 N3 O7 PLYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.44 Å
  • R-Value Free: 0.155 
  • R-Value Work: 0.120 
  • R-Value Observed: 0.122 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 89.442α = 90
b = 96.497β = 90
c = 100.349γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Science Foundation (China)China31570128

Revision History  (Full details and data files)

  • Version 1.0: 2018-09-26
    Type: Initial release