Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1979 Jan;110(1):61-6.
doi: 10.1099/00221287-110-1-61.

Uroporphyrin- and coproporphyrin I-accumulating mutant of Escherichia coli K12

P Chartrand, D Tardif, A Săsărman

Uroporphyrin- and coproporphyrin I-accumulating mutant of Escherichia coli K12

P Chartrand et al. J Gen Microbiol. 1979 Jan.

Abstract

A new type of haem-deficient mutant was isolated in Escherichia coli K12 by neomycin selection. The mutant was deficient in uroporphyrinogen III cosynthase activity as indicated by the accumulation of uroporphyrin I and coproporphyrin. The mapping of the corresponding hemD gene by P1-mediated transduction showed that the new gene was located between ilv and cya, at min 83 on the chromosomal map of Escherichia coli K12.

PubMed Disclaimer

MeSH terms