Entry Name Cysteine and methionine metabolism - Mycolicibacterium neoaurum VKM Ac-1815D
Description Cysteine and methionine are sulfur-containing amino acids. Cysteine is synthesized from serine through different pathways in different organism groups. In bacteria and plants, cysteine is converted from serine (via acetylserine) by transfer of hydrogen sulfide [MD:
M00021 ]. In animals, methionine-derived homocysteine is used as sulfur source and its condensation product with serine (cystathionine) is converted to cysteine [MD:
M00338 ]. Cysteine is metabolized to pyruvate in multiple routes. Methionine is an essential amino acid, which animals cannot synthesize. In bacteria and plants, methionine is synthesized from aspartate [MD:
M00017 ]. S-Adenosylmethionine (SAM), synthesized from methionine and ATP, is a methyl group donor in many important transfer reactions including DNA methylation for regulation of gene expression. SAM may also be used to regenerate methionine in the methionine salvage pathway [MD:
M00034 ].
Class Metabolism; Amino acid metabolismBRITE hierarchy 
Pathway map mne00270   Cysteine and methionine metabolism 
Module Other DBs Organism Mycolicibacterium neoaurum VKM Ac-1815D [GN:
mne ]
Gene Compound C00019   S-Adenosyl-L-methionine 
C00021   S-Adenosyl-L-homocysteine 
C00441   L-Aspartate 4-semialdehyde 
C01118   O-Succinyl-L-homoserine 
C01137   S-Adenosylmethioninamine 
C01180   4-Methylthio-2-oxobutanoic acid 
C01234   1-Aminocyclopropane-1-carboxylate 
C03431   S-Inosyl-L-homocysteine 
C03539   S-Ribosyl-L-homocysteine 
C04188   S-Methyl-5-thio-D-ribose 1-phosphate 
C04582   S-Methyl-5-thio-D-ribulose 1-phosphate 
C05526   S-Glutathionyl-L-cysteine 
C08276   3-(Methylthio)propanoate 
C11437   1-Deoxy-D-xylulose 5-phosphate 
C15606   1,2-Dihydroxy-5-(methylthio)pent-1-en-3-one 
C15650   2,3-Diketo-5-methylthiopentyl-1-phosphate 
C15651   2-Hydroxy-3-keto-5-methylthiopentenyl-1-phosphate 
C18049   N-Acyl-L-homoserine lactone 
C19787   5'-S-Methyl-5'-thioinosine 
C21015   gamma-L-Glutamyl-L-2-aminobutyrate 
C22359   S-Methyl-1-thio-D-xylulose 5-phosphate 
Reference   Authors Sekowska A, Denervaud V, Ashida H, Michoud K, Haas D, Yokota A, Danchin A
  Title Bacterial variations on the methionine salvage pathway.
  Journal Reference   Authors Ashida H, Saito Y, Kojima C, Kobayashi K, Ogasawara N, Yokota A.
  Title A functional link between RuBisCO-like protein of Bacillus and photosynthetic RuBisCO.
  Journal Reference   Authors Sekowska A, Danchin A.
  Title The methionine salvage pathway in Bacillus subtilis.
  Journal Reference   Authors Berger BJ, English S, Chan G, Knodel MH.
  Title Methionine regeneration and aminotransferases in Bacillus subtilis, Bacillus cereus, and Bacillus anthracis.
  Journal Reference   Authors Goyer A, Collakova E, Shachar-Hill Y, Hanson AD
  Title Functional characterization of a methionine gamma-lyase in Arabidopsis and its implication in an alternative to the reverse trans-sulfuration pathway.
  Journal Reference   Authors Rebeille F, Jabrin S, Bligny R, Loizeau K, Gambonnet B, Van Wilder V, Douce R, Ravanel S
  Title Methionine catabolism in Arabidopsis cells is initiated by a gamma-cleavage process and leads to S-methylcysteine and isoleucine syntheses.
  Journal Reference   Authors Pirkov I, Norbeck J, Gustafsson L, Albers E
  Title A complete inventory of all enzymes in the eukaryotic methionine salvage pathway.
  Journal Reference   Authors Ashida H, Saito Y, Kojima C, Yokota A
  Title Enzymatic characterization of 5-methylthioribulose-1-phosphate dehydratase of the methionine salvage pathway in Bacillus subtilis.
  Journal Reference   Authors Kitabatake M, So MW, Tumbula DL, Soll D
  Title Cysteine biosynthesis pathway in the archaeon Methanosarcina barkeri encoded by acquired bacterial genes?
  Journal Reference   Authors Mino K, Ishikawa K
  Title Characterization of a novel thermostable O-acetylserine sulfhydrylase from Aeropyrum pernix K1.
  Journal Reference   Authors Tanabe S
  Title Development of assay methods for endogenous inorganic sulfur compounds and sulfurtransferases and evaluation of the physiological functions of bound sulfur.
  Journal Reference   Authors Nishizuka Y, Seyama Y, Ikai A, Ishimura Y, Kawaguchi A (eds).
  Title [Cellular Functions and Metabolic Maps] (In Japanese)
  Journal Tokyo Kagaku Dojin (1997)
Reference   Authors Gutierrez JA, Crowder T, Rinaldo-Matthis A, Ho MC, Almo SC, Schramm VL
  Title Transition state analogs of 5'-methylthioadenosine nucleosidase disrupt quorum sensing.
  Journal Related mne00250   Alanine, aspartate and glutamate metabolism 
mne00260   Glycine, serine and threonine metabolism 
mne00290   Valine, leucine and isoleucine biosynthesis 
mne00430   Taurine and hypotaurine metabolism 
mne00770   Pantothenate and CoA biosynthesis 
mne00900   Terpenoid backbone biosynthesis 
KO pathway