Alpha-ketoglutarate oxidoreductase, an essential salvage enzyme of energy metabolism, in coccoid form of Helicobacter pylori.

Abstract:

:In the Krebs cycle of Helicobacter pylori, the absence of alpha-ketoglutarate dehydrogenase and succinyl CoA synthetase are shown. Instead, alpha-ketoglutarate is converted to succinyl CoA and succinate by alpha-ketoglutarate oxidoreductase (KOR) and CoA transferase (CoAT). In the present study, when H. pylori transformed to the coccoid form, a viable but non-culturable form of H. pylori with reduced metabolic activity, the KOR activity was enhanced while the CoAT activity was reduced. Direct inactivation of KOR could potently kill the bacteria without allowing conversion to the coccoid form, suggesting a novel treatment strategy for the eradication of H. pylori, especially in cases infected with multiple antibiotic-resistant strains.

authors

Tsugawa H,Suzuki H,Nakagawa I,Nishizawa T,Saito Y,Suematsu M,Hibi T

doi

10.1016/j.bbrc.2008.08.078

subject

Has Abstract

pub_date

2008-11-07 00:00:00

pages

46-51

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(08)01624-0

journal_volume

376

pub_type

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