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Escherichia coli
New Escherichia coli study findings have been reported by researchers at Pennsylvania State University
December 16th, 2008
"Quinolinate synthase (NadA) catalyzes a unique condensation reaction between iminoaspartate and dihydroxyacetone phosphate, affording quinolinic acid, a central intermediate in the biosynthesis of nicotinamide adenine dinucleotide (NAD). Iminoaspartate is generated via the action Of L-aspartate oxidase (NadB), which catalyzes the first step in the biosynthesis of NAD in most prokaryotes," scientists in the United States report. "NadA from Escherichia coli was hypothesized to contain an iron-sulfur cluster as early as 1991, because of its observed labile activity, especially in the presence of hyperbaric oxygen, and because its primary structure contained a CXXCXXC...
Source: TB & Outbreaks Week (2008-12-16)
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