KEGG   PATHWAY: bom00270
Entry
bom00270                    Pathway                                
Name
Cysteine and methionine metabolism - Bos mutus (wild yak)
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
bom00270  Cysteine and methionine metabolism
bom00270

Module
bom_M00034  Methionine salvage pathway [PATH:bom00270]
bom_M00035  Methionine degradation [PATH:bom00270]
bom_M00338  Cysteine biosynthesis, homocysteine + serine => cysteine [PATH:bom00270]
Other DBs
GO: 0006534 0006555
Organism
Bos mutus (wild yak) [GN:bom]
Gene
102269372  CTH; cystathionine gamma-lyase [KO:K01758] [EC:4.4.1.1]
102268017  KYAT3; kynurenine aminotransferase 3 [KO:K00816] [EC:2.6.1.7 4.4.1.13 2.6.1.64]
102274277  KYAT1; kynurenine aminotransferase 1 [KO:K00816] [EC:2.6.1.7 4.4.1.13 2.6.1.64]
102274974  kynurenine--oxoglutarate transaminase 3-like [KO:K00816] [EC:2.6.1.7 4.4.1.13 2.6.1.64]
102285677  CBS; cystathionine-beta-synthase [KO:K01697] [EC:4.2.1.22]
102286920  BHMT; betaine--homocysteine S-methyltransferase 1 [KO:K00544] [EC:2.1.1.5]
102288253  BHMT2; S-methylmethionine--homocysteine S-methyltransferase BHMT2 [KO:K00547] [EC:2.1.1.10]
102272310  MTR; methionine synthase [KO:K00548] [EC:2.1.1.13]
102280530  methionine synthase [KO:K00548] [EC:2.1.1.13]
102268766  MAT2B; methionine adenosyltransferase 2B [KO:K00789] [EC:2.5.1.6]
102278311  MAT2A; methionine adenosyltransferase 2A [KO:K00789] [EC:2.5.1.6]
102286442  MAT1A; methionine adenosyltransferase 1A [KO:K00789] [EC:2.5.1.6]
102286724  AMD1; adenosylmethionine decarboxylase 1 [KO:K01611] [EC:4.1.1.50]
102280882  SRM; spermidine synthase [KO:K00797] [EC:2.5.1.16]
102270205  spermine synthase-like [KO:K00802] [EC:2.5.1.22]
102283485  SMS; spermine synthase [KO:K00802] [EC:2.5.1.22]
102284190  MTAP; methylthioadenosine phosphorylase [KO:K00772] [EC:2.4.2.28]
102279845  LACC1; laccase domain containing 1 [KO:K05810] [EC:2.4.2.1 2.4.2.28 3.5.4.4]
102283721  MRI1; methylthioribose-1-phosphate isomerase 1 [KO:K08963] [EC:5.3.1.23]
102281965  APIP; APAF1 interacting protein [KO:K08964] [EC:4.2.1.109]
102279202  ENOPH1; enolase-phosphatase 1 [KO:K09880] [EC:3.1.3.77]
102272056  ADI1; acireductone dioxygenase 1 [KO:K08967] [EC:1.13.11.53 1.13.11.54]
102267424  TAT; tyrosine aminotransferase [KO:K00815] [EC:2.6.1.5]
102281829  L-amino-acid oxidase [KO:K03334] [EC:1.4.3.2]
102265076  IL4I1; interleukin 4 induced 1 [KO:K03334] [EC:1.4.3.2]
102287446  GNMT; glycine N-methyltransferase [KO:K00552] [EC:2.1.1.20]
102275499  DNMT1; DNA methyltransferase 1 [KO:K00558] [EC:2.1.1.37]
102284316  DNMT3A; DNA methyltransferase 3 alpha [KO:K17398] [EC:2.1.1.37]
102272906  DNMT3B; DNA methyltransferase 3 beta [KO:K17399] [EC:2.1.1.37]
102280841  AHCYL1; adenosylhomocysteinase like 1 [KO:K01251] [EC:3.13.2.1]
102267153  AHCY; adenosylhomocysteinase [KO:K01251] [EC:3.13.2.1]
102267442  AHCYL2; adenosylhomocysteinase like 2 [KO:K01251] [EC:3.13.2.1]
102281806  BCAT2; branched chain amino acid transaminase 2 [KO:K00826] [EC:2.6.1.42]
102287550  BCAT1; branched chain amino acid transaminase 1 [KO:K00826] [EC:2.6.1.42]
102269782  AGXT2; alanine--glyoxylate aminotransferase 2 [KO:K00827] [EC:2.6.1.44 2.6.1.40]
102268521  GCLC; glutamate-cysteine ligase catalytic subunit [KO:K11204] [EC:6.3.2.2]
102266741  GCLM; glutamate-cysteine ligase modifier subunit [KO:K11205]
102288014  GSS; glutathione synthetase [KO:K21456] [EC:6.3.2.3]
102270124  CDO1; cysteine dioxygenase type 1 [KO:K00456] [EC:1.13.11.20]
102284586  GOT1; glutamic-oxaloacetic transaminase 1 [KO:K14454] [EC:2.6.1.1]
102278649  GOT1L1; glutamic-oxaloacetic transaminase 1-like 1 [KO:K14454] [EC:2.6.1.1]
102268550  GOT2; glutamic-oxaloacetic transaminase 2 [KO:K14455] [EC:2.6.1.1]
102279403  TST; thiosulfate sulfurtransferase [KO:K01011] [EC:2.8.1.1 2.8.1.2]
102278933  MPST; mercaptopyruvate sulfurtransferase [KO:K01011] [EC:2.8.1.1 2.8.1.2]
102265127  LDHB; lactate dehydrogenase B [KO:K00016] [EC:1.1.1.27]
102274962  LDHA; L-lactate dehydrogenase A chain [KO:K00016] [EC:1.1.1.27]
102274105  LDHC; L-lactate dehydrogenase C chain [KO:K00016] [EC:1.1.1.27]
102282411  LDHAL6B; lactate dehydrogenase A like 6B [KO:K00016] [EC:1.1.1.27]
102270407  MDH1; malate dehydrogenase 1 [KO:K00025] [EC:1.1.1.37]
102282724  MDH2; malate dehydrogenase 2 [KO:K00026] [EC:1.1.1.37]
102286598  SDS; serine dehydratase [KO:K17989] [EC:4.3.1.17 4.3.1.19]
102286891  SDSL; serine dehydratase like [KO:K17989] [EC:4.3.1.17 4.3.1.19]
102273801  PHGDH; phosphoglycerate dehydrogenase [KO:K00058] [EC:1.1.1.95 1.1.1.399]
102287698  PSAT1; phosphoserine aminotransferase 1 [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
bom00010  Glycolysis / Gluconeogenesis
bom00250  Alanine, aspartate and glutamate metabolism
bom00260  Glycine, serine and threonine metabolism
bom00290  Valine, leucine and isoleucine biosynthesis
bom00430  Taurine and hypotaurine metabolism
bom00480  Glutathione metabolism
bom00620  Pyruvate metabolism
bom00640  Propanoate metabolism
bom00770  Pantothenate and CoA biosynthesis
bom00900  Terpenoid backbone biosynthesis
bom00920  Sulfur metabolism
KO pathway
ko00270   
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