Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2047862 | FEBS Letters | 2012 | 5 Pages |
The first step during bacillithiol (BSH) biosynthesis involves the formation of N-acetylglucosaminylmalate from UDP-N-acetylglucosamine and l-malate and is catalyzed by a GT4 class glycosyltransferase enzyme (BshA). Recombinant Staphylococcus aureus and Bacillus subtilis BshA were highly specific and active with l-malate but the former showed low activity with d-glyceric acid and the latter with d-malate. We show that BshA is inhibited by BSH and similarly that MshA (first enzyme of mycothiol biosynthesis) is inhibited by the final product MSH.
► BshA is highly specific and active with L-malate. ► S. aureus BshA has activity with D-glyceric acid; B. subtilis BshA has activity with D-malic acid. ► Feedback inhibition of BshA and MshA occurs with bacillithiol and mycothiol, respectively.