Regulation by heme of the synthesis of cytochrome C oxidase subunits V and VII in yeast.

Abstract:

:The effects of heme on the synthesis of subunits V and VII of cytochrome c oxidase were examined in the heme-deficient yeast mutant, GL1. In vitro translation and immunodetection with subunit-specific antisera indicated a 50% decrease in both proteins, with RNA obtained from hemeless cells. Unsupplemented, pulse-labeled cells contained both V and VII polypeptides, but at extremely low levels as compared with those found in delta-aminolevulinic acid-supplemented cells. The data suggest that heme controls the formation of mRNAs for the two subunits, and may also have a regulatory role in translation and in the stability of the polypeptides.

authors

Gollub EG,Dayan J

doi

10.1016/0006-291x(85)91102-7

subject

Has Abstract

pub_date

1985-05-16 00:00:00

pages

1447-54

issue

3

eissn

0006-291X

issn

1090-2104

pii

0006-291X(85)91102-7

journal_volume

128

pub_type

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