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Pathway Description
Methylglyoxal Degradation II
Escherichia coli
Category:
Metabolite Pathway
Sub-Category:
Metabolic
Created: 2015-10-13
Last Updated: 2025-05-31
The most common pathway for methylglyoxal detoxification is the glyoxalase system, which is composed of two enzymes that together convert methylglyoxal to (R)-lactate in the presence of glutathione. However, in E. coli, a single enzyme, glyoxalase III, catalyzes this conversion in a single step without involvement of glutathione. Activity of glyoxalase III increases at the transition to stationary phase and expression is dependent on RpoS, suggesting that this pathway may be important during stationary phase. (EcoCyc)
References
Methylglyoxal Degradation II References
Benov L, Sequeira F, Beema AF: Role of rpoS in the regulation of glyoxalase III in Escherichia coli. Acta Biochim Pol. 2004;51(3):857-60. doi: 045103857.
Pubmed: 15448747
Mujacic M, Baneyx F: Regulation of Escherichia coli hchA, a stress-inducible gene encoding molecular chaperone Hsp31. Mol Microbiol. 2006 Jun;60(6):1576-89. doi: 10.1111/j.1365-2958.2006.05207.x.
Pubmed: 16796689
Itoh T, Aiba H, Baba T, Hayashi K, Inada T, Isono K, Kasai H, Kimura S, Kitakawa M, Kitagawa M, Makino K, Miki T, Mizobuchi K, Mori H, Mori T, Motomura K, Nakade S, Nakamura Y, Nashimoto H, Nishio Y, Oshima T, Saito N, Sampei G, Seki Y, Horiuchi T, et al.: A 460-kb DNA sequence of the Escherichia coli K-12 genome corresponding to the 40.1-50.0 min region on the linkage map. DNA Res. 1996 Dec 31;3(6):379-92. doi: 10.1093/dnares/3.6.379.
Pubmed: 9097040
Blattner FR, Plunkett G 3rd, Bloch CA, Perna NT, Burland V, Riley M, Collado-Vides J, Glasner JD, Rode CK, Mayhew GF, Gregor J, Davis NW, Kirkpatrick HA, Goeden MA, Rose DJ, Mau B, Shao Y: The complete genome sequence of Escherichia coli K-12. Science. 1997 Sep 5;277(5331):1453-62. doi: 10.1126/science.277.5331.1453.
Pubmed: 9278503
Campbell HD, Rogers BL, Young IG: Nucleotide sequence of the respiratory D-lactate dehydrogenase gene of Escherichia coli. Eur J Biochem. 1984 Oct 15;144(2):367-73. doi: 10.1111/j.1432-1033.1984.tb08473.x.
Pubmed: 6386470
Rule GS, Pratt EA, Chin CC, Wold F, Ho C: Overproduction and nucleotide sequence of the respiratory D-lactate dehydrogenase of Escherichia coli. J Bacteriol. 1985 Mar;161(3):1059-68.
Pubmed: 3882663
Kohn LD, Kaback HR: Mechanisms of active transport in isolated bacterial membrane vesicles. XV. Purification and properties of the membrane-bound D-lactate dehydrogenase from Escherichia coli. J Biol Chem. 1973 Oct 25;248(20):7012-7.
Pubmed: 4582730
This pathway was propagated using PathWhiz -
Pon, A. et al. Pathways with PathWhiz (2015) Nucleic Acids Res. 43(Web Server issue): W552–W559.
Propagated from SMP0002096
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