Genetic analysis of microcin H47 antibiotic system-Reference-Cited by-同舟云学术

Genetic analysis of microcin H47 antibiotic system

Published:1993-09 Issue:17 Volume:175 Page:5420-5427
ISSN:0021-9193
Container-title:Journal of Bacteriology
language:en
Short-container-title:J Bacteriol

Author:

Gaggero C¹,Moreno F¹,Laviña M¹

Affiliation:

1. División Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.

Abstract

The microcin H47 genetic determinants span a DNA region of ca. 10 kb and represent the first description of an enterobacterial antibiotic system located in the chromosome of the producing strain. Transcriptional and translational fusions to lacZ showed a complex transcriptional organization of the microcin H47 system. Complementation tests identified six genes that are necessary for the production of the antibiotic; the products of two of them are involved in the export of microcin to the extracellular medium. The immunity determinant was located in an 0.8-kb DNA fragment. There is a putative "silent region" of ca. 3 kb inside the system that could not be clearly related to any antibiotic function. Protein products were identified and assigned to three production genes and also to a gene from the silent region.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Link

https://journals.asm.org/doi/pdf/10.1128/jb.175.17.5420-5427.1993

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