The seleno-polypeptide of formic dehydrogenase (formate hydrogen-lyase linked) from Escherichia coli: genetic analysis.

Abstract:

:The site of integration of phage M mu d (Ap lac) in mutant M9s which leads to deficiency of formic dehydrogenase (benzylviologen-linked) activity was determined. It was shown that the phage had inserted into the gene for the seleno-polypeptide of the enzyme (80 kd) leading to the formation of a truncated peptide (60 kd) still able to incorporate Se. Synthesis of the truncated polypeptide is subject to the same regulatory signals as that of the wild-type enzyme. The formation of the 110 kd seleno-polypeptide, which is a constituent component of the formic dehydrogenase from the formate-nitrate respiratory pathway, is unimpaired in mutant M9s. The location of the gene for the 80 kd seleno-polypeptide was mapped at 92.4 min of the Escherichia coli chromosome.

journal_name

Arch Microbiol

journal_title

Archives of microbiology

authors

Pecher A,Zinoni F,Böck A

doi

10.1007/BF00428850

subject

Has Abstract

pub_date

1985-05-01 00:00:00

pages

359-63

issue

4

eissn

0302-8933

issn

1432-072X

journal_volume

141

pub_type

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