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FEBS Lett. 1991 Apr 9;281(1-2):59-63.

Pyruvate-formate-lyase-deactivase and acetyl-CoA reductase activities of Escherichia coli reside on a polymeric protein particle encoded by adhE.

Author information

  • 1Institut für Biologische Chemie, Universität Heidelberg, Germany.

Abstract

A 4.8 kb DNA-fragment was cloned and sequenced encompassing the structural gene of PFL-deactivase (2.7 kb) and 2 kb of the 5' flanking region that contains the elements for anaerobic induction. A mutant lacking deactivase was shown to require exogenous electron acceptors for anaerobic growth with glucose. This revealed the identity of PFL-deactivase with the alcohol and acetaldehyde dehydrogenases of E. coli. The multienzyme represents a homopolymeric protein (approximately 40 x 96 kDa) requiring Fe2+ for all functions.

PMID:
2015910
[PubMed - indexed for MEDLINE]
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