title: Crystallization and preliminary X-ray analysis of a UDP-MurNAc-tripeptide D-alanyl-D-alanine-adding enzyme (PaMurF) from Pseudomonas aeruginosa.
abstract: The ATP-dependent UDP-MurNAc-tripeptide:D-Ala-D-Ala ligase MurF catalyses the last step in the cytoplasmic phase of peptidoglycan biosynthesis, which is critical in the formation of the bacterial cell wall and in the recycling of peptidoglycan intermediates. In this study, the crystallization of MurF from the Gram-negative pathogen Pseudomonas aeruginosa in the presence of its UDP-MurNAc-tripeptide substrate is reported. The crystals belonged to space group P212121, with unit-cell parameters a = 57.81, b = 87.29, c = 92.61 Å, and data were collected to 1.92 Å resolution, allowing study of the enzyme in the substrate-liganded form for the first time.
authors.affiliation: School of Life Sciences, University of Warwick, Gibbet Hill Road, Coventry, West Midlands CV4 7AL, England.
authors.forename: Vita
authors.initials: V
authors.lastname: Majce
authors.forename: Karen M
authors.initials: KM
authors.lastname: Ruane
authors.forename: Stanislav
authors.initials: S
authors.lastname: Gobec
authors.forename: David I
authors.initials: DI
authors.lastname: Roper
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry*; D003460:Crystallization; D018360:Crystallography, X-Ray; D010457:Peptidoglycan / Q000737:chemistry; D011550:Pseudomonas aeruginosa / Q000201:enzymology*; D014538:Uridine Diphosphate N-Acetylmuramic Acid / Q000031:analogs & derivatives* / Q000737:chemistry
chemical_list: D001426:Bacterial Proteins; D010457:Peptidoglycan; D014538:Uridine Diphosphate N-Acetylmuramic Acid; C076606:UDP-N-acetylmuramylalanine
keywords: MurF; Pseudomonas aeruginosa; peptidoglycan