KEGG   PATHWAY: srn00270
Entry
srn00270                    Pathway                                
Name
Cysteine and methionine metabolism - Streptomyces rubrolavendulae
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
srn00270  Cysteine and methionine metabolism
srn00270

Module
srn_M00017  Methionine biosynthesis, aspartate => homoserine => methionine [PATH:srn00270]
srn_M00035  Methionine degradation [PATH:srn00270]
srn_M00338  Cysteine biosynthesis, homocysteine + serine => cysteine [PATH:srn00270]
Other DBs
GO: 0006534 0006555
Organism
Streptomyces rubrolavendulae [GN:srn]
Gene
A4G23_00368  sbnA_1; putative siderophore biosynthesis protein SbnA [KO:K01738] [EC:2.5.1.47]
A4G23_02776  metC; Cystathionine beta-lyase [KO:K01758] [EC:4.4.1.1]
A4G23_02951  patB; Cystathionine beta-lyase PatB [KO:K14155] [EC:4.4.1.13]
A4G23_02101  cbs; Putative cystathionine beta-synthase [KO:K01697] [EC:4.2.1.22]
A4G23_04987  mmuM; Homocysteine S-methyltransferase [KO:K00547] [EC:2.1.1.10]
A4G23_00891  metH; Methionine synthase [KO:K00548] [EC:2.1.1.13]
A4G23_00720  metK; S-adenosylmethionine synthase [KO:K00789] [EC:2.5.1.6]
A4G23_00164  speE_1; Spermidine synthase [KO:K00797] [EC:2.5.1.16]
A4G23_02946  speE_2; Spermidine synthase [KO:K00797] [EC:2.5.1.16]
A4G23_03646  mtnN; 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase [KO:K01243] [EC:3.2.2.9]
A4G23_02228  mtnP; S-methyl-5'-thioadenosine phosphorylase [KO:K00772] [EC:2.4.2.28]
A4G23_01270  yfiH; Laccase domain protein YfiH [KO:K05810] [EC:2.4.2.1 2.4.2.28 3.5.4.4]
A4G23_02014  mtnA; Methylthioribose-1-phosphate isomerase [KO:K08963] [EC:5.3.1.23]
A4G23_00546  haeIIIM; Modification methylase HaeIII [KO:K00558] [EC:2.1.1.37]
A4G23_02026  ahcY; Adenosylhomocysteinase [KO:K01251] [EC:3.13.2.1]
A4G23_03861  dcyD; D-cysteine desulfhydrase [KO:K01505] [EC:3.5.99.7]
A4G23_02366  lysC; Aspartokinase [KO:K00928] [EC:2.7.2.4]
A4G23_02995  ask; Aspartokinase [KO:K00928] [EC:2.7.2.4]
A4G23_02367  asd_2; Aspartate-semialdehyde dehydrogenase [KO:K00133] [EC:1.2.1.11]
A4G23_01720  asd_1; Aspartate-semialdehyde dehydrogenase [KO:K00133] [EC:1.2.1.11]
A4G23_03945  hom; Homoserine dehydrogenase [KO:K00003] [EC:1.1.1.3]
A4G23_01554  metA; Homoserine O-succinyltransferase [KO:K00651] [EC:2.3.1.46 2.3.1.31]
A4G23_03633  metB; Cystathionine gamma-synthase [KO:K01739] [EC:2.5.1.48]
A4G23_01553  metZ; O-succinylhomoserine sulfhydrylase [KO:K10764] [EC:2.5.1.-]
A4G23_04084  ilvE_2; Branched-chain-amino-acid aminotransferase [KO:K00826] [EC:2.6.1.42]
A4G23_00790  ilvE_1; Branched-chain-amino-acid aminotransferase [KO:K00826] [EC:2.6.1.42]
A4G23_05245  gshA; Glutamate--cysteine ligase GshA [KO:K01919] [EC:6.3.2.2]
A4G23_03312  Aspartate aminotransferase [KO:K00812] [EC:2.6.1.1]
A4G23_04927  tyrB; Aromatic-amino-acid aminotransferase [KO:K00813] [EC:2.6.1.1]
A4G23_04347  sseA; 3-mercaptopyruvate sulfurtransferase [KO:K01011] [EC:2.8.1.1 2.8.1.2]
A4G23_02528  Putative thiosulfate sulfurtransferase [KO:K01011] [EC:2.8.1.1 2.8.1.2]
A4G23_03498  mdh; Malate dehydrogenase [KO:K00024] [EC:1.1.1.37]
A4G23_04038  sdaA; L-serine dehydratase 1 [KO:K01752] [EC:4.3.1.17]
A4G23_04076  serA; D-3-phosphoglycerate dehydrogenase [KO:K00058] [EC:1.1.1.95 1.1.1.399]
A4G23_02358  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
srn00010  Glycolysis / Gluconeogenesis
srn00250  Alanine, aspartate and glutamate metabolism
srn00260  Glycine, serine and threonine metabolism
srn00290  Valine, leucine and isoleucine biosynthesis
srn00430  Taurine and hypotaurine metabolism
srn00480  Glutathione metabolism
srn00620  Pyruvate metabolism
srn00640  Propanoate metabolism
srn00770  Pantothenate and CoA biosynthesis
srn00900  Terpenoid backbone biosynthesis
srn00920  Sulfur metabolism
KO pathway
ko00270   
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