KEGG   PATHWAY: pov00270
Entry
pov00270                    Pathway                                
Name
Cysteine and methionine metabolism - Paralichthys olivaceus (Japanese flounder)
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
pov00270  Cysteine and methionine metabolism
pov00270

Module
pov_M00034  Methionine salvage pathway [PATH:pov00270]
pov_M00035  Methionine degradation [PATH:pov00270]
pov_M00338  Cysteine biosynthesis, homocysteine + serine => cysteine [PATH:pov00270]
Other DBs
GO: 0006534 0006555
Organism
Paralichthys olivaceus (Japanese flounder) [GN:pov]
Gene
109625800  cth; cystathionine gamma-lyase [KO:K01758] [EC:4.4.1.1]
109626496  kyat1; kynurenine--oxoglutarate transaminase 1 [KO:K00816] [EC:2.6.1.7 4.4.1.13 2.6.1.64]
109625862  kyat3; kynurenine--oxoglutarate transaminase 3 [KO:K00816] [EC:2.6.1.7 4.4.1.13 2.6.1.64]
109639757  cystathionine beta-synthase-like [KO:K01697] [EC:4.2.1.22]
109625962  betaine--homocysteine S-methyltransferase 1-like [KO:K00544] [EC:2.1.1.5]
109638087  betaine--homocysteine S-methyltransferase 1-like [KO:K00544] [EC:2.1.1.5]
109637078  betaine--homocysteine S-methyltransferase 1-like [KO:K00544] [EC:2.1.1.5]
109637079  betaine--homocysteine S-methyltransferase 1 [KO:K00544] [EC:2.1.1.5]
109625597  uncharacterized protein LOC109625597 [KO:K00547] [EC:2.1.1.10]
109626681  mtr; methionine synthase [KO:K00548] [EC:2.1.1.13]
109644504  S-adenosylmethionine synthase [KO:K00789] [EC:2.5.1.6]
109626388  S-adenosylmethionine synthase-like [KO:K00789] [EC:2.5.1.6]
109638173  S-adenosylmethionine synthase isoform X1 [KO:K00789] [EC:2.5.1.6]
109636138  S-adenosylmethionine synthase-like [KO:K00789] [EC:2.5.1.6]
109642211  mat2b; methionine adenosyltransferase 2 subunit beta [KO:K00789] [EC:2.5.1.6]
109632490  amd1; S-adenosylmethionine decarboxylase proenzyme [KO:K01611] [EC:4.1.1.50]
109630941  srm; spermidine synthase [KO:K00797] [EC:2.5.1.16]
109628585  sms; spermine synthase [KO:K00802] [EC:2.5.1.22]
109638285  mtap; S-methyl-5'-thioadenosine phosphorylase [KO:K00772] [EC:2.4.2.28]
109626086  lacc1; laccase domain-containing protein 1 [KO:K05810] [EC:2.4.2.1 2.4.2.28 3.5.4.4]
109627244  mri1; methylthioribose-1-phosphate isomerase [KO:K08963] [EC:5.3.1.23]
109637181  apip; methylthioribulose-1-phosphate dehydratase [KO:K08964] [EC:4.2.1.109]
109626260  enoph1; enolase-phosphatase E1 [KO:K09880] [EC:3.1.3.77]
109628077  adi1; 1,2-dihydroxy-3-keto-5-methylthiopentene dioxygenase [KO:K08967] [EC:1.13.11.53 1.13.11.54]
109644307  tat; tyrosine aminotransferase [KO:K00815] [EC:2.6.1.5]
109639351  L-amino-acid oxidase-like [KO:K03334] [EC:1.4.3.2]
109644254  L-amino-acid oxidase-like [KO:K03334] [EC:1.4.3.2]
109628164  gnmt; glycine N-methyltransferase [KO:K00552] [EC:2.1.1.20]
109634252  dnmt1; DNA (cytosine-5)-methyltransferase 1 [KO:K00558] [EC:2.1.1.37]
109636466  DNA (cytosine-5)-methyltransferase 3A-like isoform X1 [KO:K17398] [EC:2.1.1.37]
109642379  DNA (cytosine-5)-methyltransferase 3A-like isoform X1 [KO:K17398] [EC:2.1.1.37]
109641120  uncharacterized protein LOC109641120 isoform X1 [KO:K17399] [EC:2.1.1.37]
109635285  DNA (cytosine-5)-methyltransferase 3B-like isoform X1 [KO:K17399] [EC:2.1.1.37]
109632924  putative adenosylhomocysteinase 3 [KO:K01251] [EC:3.13.2.1]
109629339  adenosylhomocysteinase 2-like [KO:K01251] [EC:3.13.2.1]
109630942  ahcyl1; adenosylhomocysteinase 2 isoform X1 [KO:K01251] [EC:3.13.2.1]
109624679  adenosylhomocysteinase 2-like isoform X1 [KO:K01251] [EC:3.13.2.1]
109645982  ahcy; adenosylhomocysteinase [KO:K01251] [EC:3.13.2.1]
109632741  branched-chain-amino-acid aminotransferase, cytosolic-like [KO:K00826] [EC:2.6.1.42]
109634218  branched-chain-amino-acid aminotransferase, cytosolic-like isoform X1 [KO:K00826] [EC:2.6.1.42]
109626465  agxt2; alanine--glyoxylate aminotransferase 2, mitochondrial [KO:K00827] [EC:2.6.1.44 2.6.1.40]
109635542  gclc; glutamate--cysteine ligase catalytic subunit [KO:K11204] [EC:6.3.2.2]
109625804  gclm; glutamate--cysteine ligase regulatory subunit [KO:K11205]
109630956  gss; glutathione synthetase [KO:K21456] [EC:6.3.2.3]
109636953  cdo1; cysteine dioxygenase type 1 [KO:K00456] [EC:1.13.11.20]
109640190  aspartate aminotransferase, cytoplasmic-like [KO:K14454] [EC:2.6.1.1]
109633639  aspartate aminotransferase, cytoplasmic-like [KO:K14454] [EC:2.6.1.1]
109643230  aspartate aminotransferase, cytoplasmic-like [KO:K14454] [EC:2.6.1.1]
109636879  got2; aspartate aminotransferase, mitochondrial [KO:K14455] [EC:2.6.1.1]
109623935  3-mercaptopyruvate sulfurtransferase-like [KO:K01011] [EC:2.8.1.1 2.8.1.2]
109647761  L-lactate dehydrogenase B-B chain-like [KO:K00016] [EC:1.1.1.27]
109637462  L-lactate dehydrogenase B chain-like [KO:K00016] [EC:1.1.1.27]
109638975  L-lactate dehydrogenase A chain [KO:K00016] [EC:1.1.1.27]
109644381  malate dehydrogenase, cytoplasmic-like [KO:K00025] [EC:1.1.1.37]
109635014  malate dehydrogenase, cytoplasmic-like [KO:K00025] [EC:1.1.1.37]
109632147  mdh2; malate dehydrogenase, mitochondrial [KO:K00026] [EC:1.1.1.37]
109647526  sds; L-serine dehydratase/L-threonine deaminase [KO:K17989] [EC:4.3.1.17 4.3.1.19]
109627959  serine dehydratase-like [KO:K17989] [EC:4.3.1.17 4.3.1.19]
109631446  phgdh; D-3-phosphoglycerate dehydrogenase [KO:K00058] [EC:1.1.1.95 1.1.1.399]
109637168  psat1; 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
C01102  O-Phospho-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
pov00010  Glycolysis / Gluconeogenesis
pov00250  Alanine, aspartate and glutamate metabolism
pov00260  Glycine, serine and threonine metabolism
pov00290  Valine, leucine and isoleucine biosynthesis
pov00430  Taurine and hypotaurine metabolism
pov00480  Glutathione metabolism
pov00620  Pyruvate metabolism
pov00640  Propanoate metabolism
pov00770  Pantothenate and CoA biosynthesis
pov00900  Terpenoid backbone biosynthesis
pov00920  Sulfur metabolism
KO pathway
ko00270   
LinkDB

DBGET integrated database retrieval system