KEGG   PATHWAY: bsh00270
Entry
bsh00270                    Pathway                                
Name
Cysteine and methionine metabolism - Bacillus subtilis subsp. subtilis 6051-HGW
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
bsh00270  Cysteine and methionine metabolism
bsh00270

Module
bsh_M00017  Methionine biosynthesis, aspartate => homoserine => methionine [PATH:bsh00270]
bsh_M00021  Cysteine biosynthesis, serine => cysteine [PATH:bsh00270]
bsh_M00034  Methionine salvage pathway [PATH:bsh00270]
bsh_M00609  Cysteine biosynthesis, methionine => cysteine [PATH:bsh00270]
Other DBs
GO: 0006534 0006555
Organism
Bacillus subtilis subsp. subtilis 6051-HGW [GN:bsh]
Gene
BSU6051_00930  cysE; serine acetyltransferase CysE [KO:K00640] [EC:2.3.1.30]
BSU6051_29970  ytkP; putative cysteine synthase-like protein YtkP [KO:K01738] [EC:2.5.1.47]
BSU6051_00730  cysK; cysteine synthase CysK [KO:K01738] [EC:2.5.1.47]
BSU6051_27250  mccB; cystathionine gamma-lyase and homocysteine gamma-lyase for reverse transsulfuration pathway MccB [KO:K17217] [EC:4.4.1.1 4.4.1.2]
BSU6051_11880  metC; cystathionine beta-lyase MetC [KO:K01760] [EC:4.4.1.13]
BSU6051_31440  patB; C-S lyase PatB [KO:K14155] [EC:4.4.1.13]
BSU6051_27260  mccA; cystathionine beta-synthase for the reverse transsulfuration pathway MccA [KO:K17216] [EC:2.5.1.134]
BSU6051_02410  ybgG; homocysteine methylase using (R,S)AdoMet [KO:K00547] [EC:2.1.1.10]
BSU6051_11010  yitJ; homocysteine S-methyltransferase using (R,S)AdoMet and methylenetetrahydrofolate reductase NAD(P)H YitJ [KO:K24042] [EC:2.1.1.13 1.5.1.54]
BSU6051_13180  metE; cobalamin-independent methionine synthase MetE [KO:K00549] [EC:2.1.1.14]
BSU6051_30550  metK; S-adenosylmethionine synthetase MetK [KO:K00789] [EC:2.5.1.6]
BSU6051_29010  speD; S-adenosylmethionine decarboxylase SpeD [KO:K01611] [EC:4.1.1.50]
BSU6051_37500  speE; spermidine synthase, polyamine metabolism SpeE [KO:K00797] [EC:2.5.1.16]
BSU6051_27270  mtnN; methylthioadenosine / S-adenosylhomocysteine nucleosidase MtnN [KO:K01243] [EC:3.2.2.9]
BSU6051_13560  mtnK; methylthioribose kinase MtnK [KO:K00899] [EC:2.7.1.100]
BSU6051_15370  ylmD; YlmD [KO:K05810] [EC:2.4.2.1 2.4.2.28 3.5.4.4]
BSU6051_13550  mtnA; methylthioribose-1-phosphate isomerase MtnA [KO:K08963] [EC:5.3.1.23]
BSU6051_13610  mtnB; methylthioribulose-1-phosphate dehydratase MtnB [KO:K08964] [EC:4.2.1.109]
BSU6051_13590  mtnW; 2,3-diketo-5-methylthiopentyl-1-phosphate enolase MtnW [KO:K08965] [EC:5.3.2.5]
BSU6051_13600  mtnX; 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate phosphatase MtnX [KO:K08966] [EC:3.1.3.87]
BSU6051_13620  mtnD; acireductone dioxygenase MtnD [KO:K08967] [EC:1.13.11.53 1.13.11.54]
BSU6051_13580  mtnE; methionine-glutamine aminotransferase MtnE [KO:K08969] [EC:2.6.1.117]
BSU6051_29640  ytsP; YtsP [KO:K08968] [EC:1.8.4.14]
BSU6051_20250  mtbP; putative SP-beta prophage DNA (cytosine-5-)-methyltransferase MtbP [KO:K00558] [EC:2.1.1.37]
BSU6051_06060  ydiO; cytosine specific DNA-methyltransferase YdiO [KO:K00558] [EC:2.1.1.37]
BSU6051_06070  ydiP; cytosine specific DNA-methyltransferase YdiP [KO:K00558] [EC:2.1.1.37]
BSU6051_27280  yrrT; putative AdoMet-dependent methyltransferase YrrT [KO:K17462] [EC:2.1.1.-]
BSU6051_30670  luxS; S-ribosylhomocysteine lyase LuxS [KO:K07173] [EC:4.4.1.21]
BSU6051_28470  lysC; aspartokinase II LysC [KO:K00928] [EC:2.7.2.4]
BSU6051_16760  dapG; aspartokinase I alpha and beta subunits DapG [KO:K00928] [EC:2.7.2.4]
BSU6051_03790  yclM; aspartate kinase III [KO:K00928] [EC:2.7.2.4]
BSU6051_16750  asd; aspartate-semialdehyde dehydrogenase Asd [KO:K00133] [EC:1.2.1.11]
BSU6051_32260  hom; homoserine dehydrogenase Hom [KO:K00003] [EC:1.1.1.3]
BSU6051_32240  thrB; homoserine kinase ThrB [KO:K00872] [EC:2.7.1.39]
BSU6051_21910  metA; putative homoserine O-acetyltransferase MetA [KO:K00651] [EC:2.3.1.46 2.3.1.31]
BSU6051_11870  metI; cystathionine gamma-synthase and O-acetylhomoserine thiolyase MetI [KO:K01739] [EC:2.5.1.48]
BSU6051_38550  ilvK; branched-chain amino acid aminotransferase IlvK [KO:K00826] [EC:2.6.1.42]
BSU6051_02390  ilvE; ketomethiobutyrate-branched-chain/aromatic aminoacid aminotransferase IlvE [KO:K00826] [EC:2.6.1.42]
BSU6051_31140  cdoA; cysteine dioxygenase CdoA [KO:K00456] [EC:1.13.11.20]
BSU6051_22370  aspB; putative aspartate aminotransferase AspB [KO:K00812] [EC:2.6.1.1]
BSU6051_09570  yhdR; putative aspartate aminotransferase YhdR [KO:K11358] [EC:2.6.1.1]
BSU6051_03050  ldh; L-lactate dehydrogenase Ldh [KO:K00016] [EC:1.1.1.27]
BSU6051_34430  racX; amino acid racemase RacX [KO:K25316] [EC:5.1.1.10]
BSU6051_29120  mdh; malate dehydrogenase Mdh [KO:K00024] [EC:1.1.1.37]
BSU6051_15850  sdaAB; L-serine dehydratase beta chain SdaAB [KO:K01752] [EC:4.3.1.17]
BSU6051_15860  sdaAA; L-serine dehydratase alpha chain SdaAA [KO:K01752] [EC:4.3.1.17]
BSU6051_18560  yoaD; putative 2-hydroxyacid dehydrogenase YoaD [KO:K00058] [EC:1.1.1.95 1.1.1.399]
BSU6051_23070  serA; 3-phosphoglycerate dehydrogenase SerA [KO:K00058] [EC:1.1.1.95 1.1.1.399]
BSU6051_10020  serC; phosphoserine aminotransferase SerC [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
bsh00010  Glycolysis / Gluconeogenesis
bsh00250  Alanine, aspartate and glutamate metabolism
bsh00260  Glycine, serine and threonine metabolism
bsh00290  Valine, leucine and isoleucine biosynthesis
bsh00430  Taurine and hypotaurine metabolism
bsh00480  Glutathione metabolism
bsh00620  Pyruvate metabolism
bsh00640  Propanoate metabolism
bsh00770  Pantothenate and CoA biosynthesis
bsh00900  Terpenoid backbone biosynthesis
bsh00920  Sulfur metabolism
KO pathway
ko00270   
LinkDB

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