KEGG   PATHWAY: mlv00270
Entry
mlv00270                    Pathway                                
Name
Cysteine and methionine metabolism - Microbacterium lemovicicum
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 metabolism
Pathway map
mlv00270  Cysteine and methionine metabolism
mlv00270

Module
mlv_M00017  Methionine biosynthesis, aspartate => homoserine => methionine [PATH:mlv00270]
mlv_M00021  Cysteine biosynthesis, serine => cysteine [PATH:mlv00270]
Other DBs
GO: 0006534 0006555
Organism
Microbacterium lemovicicum [GN:mlv]
Gene
CVS47_00934  cysE; Serine acetyltransferase [KO:K00640] [EC:2.3.1.30]
CVS47_00935  cysK1; O-acetylserine sulfhydrylase [KO:K01738] [EC:2.5.1.47]
CVS47_00381  metC_1; Cystathionine beta-lyase [KO:K14155] [EC:4.4.1.13]
CVS47_01247  Putative cystathionine beta-lyase [KO:K14155] [EC:4.4.1.13]
CVS47_03264  metC_2; Cystathionine beta-lyase [KO:K14155] [EC:4.4.1.13]
CVS47_02739  cbs; Putative cystathionine beta-synthase [KO:K01697] [EC:4.2.1.22]
CVS47_03037  mmuM; Homocysteine S-methyltransferase [KO:K00547] [EC:2.1.1.10]
CVS47_02554  xecA1; 2-hydroxypropyl-CoM lyase [KO:K00549] [EC:2.1.1.14]
CVS47_01359  metK; S-adenosylmethionine synthase [KO:K00789] [EC:2.5.1.6]
CVS47_02637  mtnN; 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase [KO:K01243] [EC:3.2.2.9]
CVS47_00771  ahcY; Adenosylhomocysteinase [KO:K01251] [EC:3.13.2.1]
CVS47_00979  acdS; 1-aminocyclopropane-1-carboxylate deaminase [KO:K01505] [EC:3.5.99.7]
CVS47_02353  ask; Aspartokinase [KO:K00928] [EC:2.7.2.4]
CVS47_02350  asd; Aspartate-semialdehyde dehydrogenase [KO:K00133] [EC:1.2.1.11]
CVS47_00929  hom; Homoserine dehydrogenase [KO:K00003] [EC:1.1.1.3]
CVS47_00829  metX; Homoserine O-acetyltransferase [KO:K00641] [EC:2.3.1.31 2.3.1.46]
CVS47_02738  metB; Cystathionine gamma-synthase [KO:K01739] [EC:2.5.1.48]
CVS47_00832  mgl; L-methionine gamma-lyase [KO:K01740] [EC:2.5.1.49]
CVS47_02751  megL; L-methionine gamma-lyase [KO:K01740] [EC:2.5.1.49]
CVS47_01713  ilvE; Branched-chain-amino-acid aminotransferase [KO:K00826] [EC:2.6.1.42]
CVS47_02478  aspC_2; Aspartate aminotransferase [KO:K00812] [EC:2.6.1.1]
CVS47_02518  Aspartate aminotransferase [KO:K00812] [EC:2.6.1.1]
CVS47_02018  sseB; Putative thiosulfate sulfurtransferase SseB [KO:K01011] [EC:2.8.1.1 2.8.1.2]
CVS47_01425  sseA; Putative thiosulfate sulfurtransferase SseA [KO:K01011] [EC:2.8.1.1 2.8.1.2]
CVS47_02687  sdaA; L-serine dehydratase [KO:K01752] [EC:4.3.1.17]
CVS47_03275  hprA; Glycerate dehydrogenase [KO:K00058] [EC:1.1.1.95 1.1.1.399]
CVS47_01717  serA; D-3-phosphoglycerate dehydrogenase [KO:K00058] [EC:1.1.1.95 1.1.1.399]
CVS47_02211  serC; Phosphoserine aminotransferase [KO:K00831] [EC:2.6.1.52]
Compound
C00019  S-Adenosyl-L-methionine
C00021  S-Adenosyl-L-homocysteine
C00022  Pyruvate
C00041  L-Alanine
C00049  L-Aspartate
C00051  Glutathione
C00059  Sulfate
C00065  L-Serine
C00073  L-Methionine
C00094  Sulfite
C00097  L-Cysteine
C00109  2-Oxobutanoate
C00155  L-Homocysteine
C00170  5'-Methylthioadenosine
C00197  3-Phospho-D-glycerate
C00263  L-Homoserine
C00283  Hydrogen sulfide
C00409  Methanethiol
C00441  L-Aspartate 4-semialdehyde
C00491  L-Cystine
C00506  L-Cysteate
C00606  3-Sulfino-L-alanine
C00793  D-Cysteine
C00957  Mercaptopyruvate
C00979  O-Acetyl-L-serine
C01005  O-Phospho-L-serine
C01077  O-Acetyl-L-homoserine
C01118  O-Succinyl-L-homoserine
C01137  S-Adenosylmethioninamine
C01180  4-Methylthio-2-oxobutanoic acid
C01234  1-Aminocyclopropane-1-carboxylate
C01817  L-Homocystine
C01962  Thiocysteine
C02218  Dehydroalanine
C02291  L-Cystathionine
C02356  (S)-2-Aminobutanoate
C02989  L-Methionine S-oxide
C03082  4-Phospho-L-aspartate
C03089  5-Methylthio-D-ribose
C03145  N-Formylmethionine
C03232  3-Phosphonooxypyruvate
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
C05324  Nicotianamine
C05524  Aminoacyl-L-methionine
C05526  S-Glutathionyl-L-cysteine
C05527  3-Sulfinylpyruvate
C05528  3-Sulfopyruvate
C05823  3-Mercaptolactate
C05824  S-Sulfo-L-cysteine
C06547  Ethylene
C08276  3-(Methylthio)propanoate
C09306  Sulfur dioxide
C11437  1-Deoxy-D-xylulose 5-phosphate
C11481  HSO3-
C11499  (S)-3-Sulfolactate
C11537  (2R)-3-Sulfolactate
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
C21016  Ophthalmate
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
BMC Microbiol 4:9 (2004)
DOI:10.1186/1471-2180-4-9
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
Science 302:286-90 (2003)
DOI:10.1126/science.1086997
Reference
  Authors
Sekowska A, Danchin A.
  Title
The methionine salvage pathway in Bacillus subtilis.
  Journal
BMC Microbiol 2:8 (2002)
DOI:10.1186/1471-2180-2-8
Reference
  Authors
Berger BJ, English S, Chan G, Knodel MH.
  Title
Methionine regeneration and aminotransferases in Bacillus subtilis, Bacillus cereus, and Bacillus anthracis.
  Journal
J Bacteriol 185:2418-31 (2003)
DOI:10.1128/JB.185.8.2418-2431.2003
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
Plant Cell Physiol 48:232-42 (2007)
DOI:10.1093/pcp/pcl055
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
Proc Natl Acad Sci U S A 103:15687-92 (2006)
DOI:10.1073/pnas.0606195103
Reference
  Authors
Pirkov I, Norbeck J, Gustafsson L, Albers E
  Title
A complete inventory of all enzymes in the eukaryotic methionine salvage pathway.
  Journal
FEBS J 275:4111-20 (2008)
DOI:10.1111/j.1742-4658.2008.06552.x
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
Biosci Biotechnol Biochem 72:959-67 (2008)
DOI:10.1271/bbb.70651
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
J Bacteriol 182:143-5 (2000)
DOI:10.1128/JB.182.1.143-145.2000
Reference
  Authors
Mino K, Ishikawa K
  Title
Characterization of a novel thermostable O-acetylserine sulfhydrylase from Aeropyrum pernix K1.
  Journal
J Bacteriol 185:2277-84 (2003)
DOI:10.1128/JB.185.7.2277-2284.2003
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
Yakugaku Zasshi 128:881-900 (2008)
DOI:10.1248/yakushi.128.881
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
Nat Chem Biol 5:251-7 (2009)
DOI:10.1038/nchembio.153
Related
pathway
mlv00010  Glycolysis / Gluconeogenesis
mlv00250  Alanine, aspartate and glutamate metabolism
mlv00260  Glycine, serine and threonine metabolism
mlv00290  Valine, leucine and isoleucine biosynthesis
mlv00430  Taurine and hypotaurine metabolism
mlv00480  Glutathione metabolism
mlv00620  Pyruvate metabolism
mlv00640  Propanoate metabolism
mlv00770  Pantothenate and CoA biosynthesis
mlv00900  Terpenoid backbone biosynthesis
mlv00920  Sulfur metabolism
KO pathway
ko00270   
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