The Helicobacter pylori ureC gene codes for a phosphoglucosamine mutase

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The Helicobacter pylori ureC gene codes for a phosphoglucosamine mutase.

The function of UreC, the product of a 1,335-bp-long open reading frame upstream from the urease structural genes (ureAB) of Helicobacter pylori, was investigated. We present data showing that the ureC gene product is a phosphoglucosamine mutase. D. Mengin-Lecreulx and J. van Heijenoort (J. Biol. Chem. 271:32-39, 1996) observed that UreC is similar (43% identity) to the GlmM protein of Escheric...

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Identification of the Pseudomonas aeruginosa glmM gene, encoding phosphoglucosamine mutase.

A search for a potential algC homologue within the Pseudomonas aeruginosa PAO1 genome database has revealed an open reading frame (ORF) of unknown function, ORF540 in contig 54 (July 1999 Pseudomonas genome release), that theoretically coded for a 445-amino-acid-residue polypeptide (I. M. Tavares, J. H. Leitão, A. M. Fialho, and I. Sá-Correia, Res. Microbiol. 150:105-116, 1999). The product of ...

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Autophosphorylation of phosphoglucosamine mutase from Escherichia coli.

Phosphoglucosamine mutase (GlmM) catalyzes the formation of glucosamine-1-phosphate from glucosamine-6-phosphate, an essential step in the pathway for UDP-N-acetylglucosamine biosynthesis in bacteria. This enzyme must be phosphorylated to be active and acts according to a ping-pong mechanism involving glucosamine-1, 6-diphosphate as an intermediate (L. Jolly, P. Ferrari, D. Blanot, J. van Heije...

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Quaternary structure, conformational variability and global motions of phosphoglucosamine mutase.

Phosphoglucosamine mutase (PNGM) is a bacterial enzyme that participates in the peptidoglycan biosynthetic pathway. Recent crystal structures of PNGM from two bacterial pathogens, Bacillus anthracis and Francisella tularensis, have revealed key structural features of this enzyme for the first time. Here, we follow up on several novel findings from the crystallographic studies, including the obs...

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Helicobacter pylori Is Not Eradicated after Triple Therapy: A Nested PCR Based Study

Detection of Helicobacter pylori after triple therapy is usually carried out by either rapid urease test (RUT), urea breath test (UBT), histology, bacterial isolation, and single round PCR or serological tests. In this study, antral biopsy specimens from 25 patients were tested for H. pylori by RUT, culture, histology, and nested PCR in their antral biopsy specimens before and after treatment. ...

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ژورنال

عنوان ژورنال: Journal of Bacteriology

سال: 1997

ISSN: 0021-9193,1098-5530

DOI: 10.1128/jb.179.11.3488-3493.1997