This website uses cookies

The University of Liège wishes to use cookies or trackers to store and access your personal data, to perform audience measurement. Some cookies are necessary for the website to function. Cookie policy.

Article (Scientific journals)
The bla gene of the cephamycin cluster of Streptomyces clavuligerus encodes a class A beta-lactamase of low enzymatic activity.
Perez-Llarena, F.; Martin, Juan F.; Galleni, Moreno et al.
1997In Journal of Bacteriology, 179 (19), p. 6035-40
Peer Reviewed verified by ORBi
 

Files


Full Text
PerezLlarena_1997.pdf
Publisher postprint (604.97 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Amino Acid Sequence; Anti-Bacterial Agents/biosynthesis/metabolism; Base Sequence; Cephamycins/biosynthesis; Cloning, Molecular; Genes, Bacterial; Kinetics; Molecular Sequence Data; Molecular Weight; Penicillin G/metabolism; Recombinant Proteins/metabolism; Streptomyces/enzymology/genetics; Transformation, Genetic; beta-Lactamases/chemistry/genetics/metabolism
Abstract :
[en] A gene (bla) encoding a beta-lactamase is present in the cephamycin gene cluster of Streptomyces clavuligerus, the strain producing clavulanic acid and a beta-lactamase inhibitory protein. The bla gene is located 5.1 kb downstream from and in the opposite orientation to cefE, encoding the deacetoxycephalosporin C synthase. The bla gene encodes a 332-residue protein (Mr, 35,218), similar to other class A beta-lactamases produced by actinomycetes. Modification (to SDG) of the SDN conserved motif of class A beta-lactamases as well as of amino acids in otherwise conserved regions in the molecule may explain the low penicillinase and cephalosporinase activities of the protein. The beta-lactamase has been purified to homogeneity and found to bind [3H]benzylpenicillin, a result reflecting a rate-limiting deacylation step. Nucleotide sequences homologous to bla were found in all tested cephamycin producers, but several other Streptomyces species which produce a beta-lactamase do not contain genes for beta-lactam antibiotic biosynthesis.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Perez-Llarena, F.
Martin, Juan F.
Galleni, Moreno ;  Université de Liège - ULiège
Coque, J. J.
Fuente, J. L.
Frère, Jean-Marie  ;  Université de Liège > Département des sciences de la vie > Centre d'ingénierie des protéines
Liras, P.
Language :
English
Title :
The bla gene of the cephamycin cluster of Streptomyces clavuligerus encodes a class A beta-lactamase of low enzymatic activity.
Publication date :
1997
Journal title :
Journal of Bacteriology
ISSN :
0021-9193
eISSN :
1098-5530
Publisher :
American Society for Microbiology, Washington, United States - District of Columbia
Volume :
179
Issue :
19
Pages :
6035-40
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 01 December 2015

Statistics


Number of views
60 (3 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
43
Scopus citations®
without self-citations
29
OpenCitations
 
31
OpenAlex citations
 
45

publications
0
supporting
0
mentioning
0
contrasting
0
Smart Citations
0
0
0
0
Citing PublicationsSupportingMentioningContrasting
View Citations

See how this article has been cited at scite.ai

scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.

Bibliography


Similar publications



Sorry the service is unavailable at the moment. Please try again later.
Contact ORBi