Escherichia coli cysteine synthesis

K V. A sulfiirtransferase is required in the transfer of cysteine sulfur in the in vitro synthesis of molybdopterin from precursor Z in Escherichia coli, J Biol Chem 2001, 276, 22024-22031. 

Another approach to stabilize FDH against haloketones was followed by Yamamoto et al. They studied a set of cysteine mutants of FDH from Mycobacterium vaccae [14], A triple cysteine mutant was successfully used for the synthesis of (S)-4-chloro-3-hydroxybutanoate ester by recombinant Escherichia coli cells coexpressing the FDH mutant and a carbonyl reductase from Kluyveromyces aestuarii [15],... 

Neuwald, A.F., Krishnan, B.R., Brikun, I., Kulakauskas, S., Suziedelis, K., Tomcsanyi, T., Leyh, T.S., and Berg, D.E., 1992, CysQ, a gene needed for cysteine synthesis in Escherichia coli K-12 only during aerobic growth. J. Bacteriol. 174 415—425. 

Other pyruvate-containing enzymes include aspartate -decarboxylase from Escherichia coli, the enzyme that catalyzes the formation of -alanine for the synthesis of pantothenic acid (Section 12.2.4) proline reductase from Clostridium sticklandiv, phosphatidylserine decarboxylase from E. coli and phenylalanine aminotransferase from Pseudomonas fluorescens. Phospho-pantetheinoyl cysteine decarboxylase, involved in the synthesis of coenzyme A (Section 12.2.1), and S-adenosylmethionine decarboxylase seem to be the only mammalian pyruvoyl enzymes (Snell, 1990). 

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