KEGG   PATHWAY: csi00270
Entry
csi00270                    Pathway                                
Name
Cysteine and methionine metabolism - Cronobacter malonaticus CMCC45402
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
csi00270  Cysteine and methionine metabolism
csi00270

Module
csi_M00017  Methionine biosynthesis, aspartate => homoserine => methionine [PATH:csi00270]
csi_M00021  Cysteine biosynthesis, serine => cysteine [PATH:csi00270]
csi_M00034  Methionine salvage pathway [PATH:csi00270]
csi_M00338  Cysteine biosynthesis, homocysteine + serine => cysteine [PATH:csi00270]
Other DBs
GO: 0006534 0006555
Organism
Cronobacter malonaticus CMCC45402 [GN:csi]
Gene
P262_05629  serine acetyltransferase [KO:K00640] [EC:2.3.1.30]
P262_01593  cysteine synthase A [KO:K01738] [EC:2.5.1.47]
P262_04236  pyridoxal-5'-phosphate-dependent protein subunit beta [KO:K01738] [EC:2.5.1.47]
P262_04128  cystathionine gamma-lyase [KO:K01758] [EC:4.4.1.1]
P262_00835  metC protein [KO:K01760] [EC:4.4.1.13]
P262_02288  hypothetical protein [KO:K14155] [EC:4.4.1.13]
P262_03105  protein MalY [KO:K14155] [EC:4.4.1.13]
P262_04129  cystathionine beta-synthase [KO:K01697] [EC:4.2.1.22]
P262_04366  homocysteine methyltransferase [KO:K00547] [EC:2.1.1.10]
P262_00543  B12-dependent methionine synthase [KO:K00548] [EC:2.1.1.13]
P262_05449  5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase [KO:K00549] [EC:2.1.1.14]
P262_01004  S-adenosylmethionine synthase [KO:K00789] [EC:2.5.1.6]
P262_04732  S-adenosylmethionine decarboxylase proenzyme [KO:K01611] [EC:4.1.1.50]
P262_04730  spermidine synthase [KO:K00797] [EC:2.5.1.16]
P262_04685  mtnN protein [KO:K01243] [EC:3.2.2.9]
P262_01563  methylthioribose kinase [KO:K00899] [EC:2.7.1.100]
P262_01376  yfiH protein [KO:K05810] [EC:2.4.2.1 2.4.2.28 3.5.4.4]
P262_01564  Methylthioribose-1-phosphate isomerase [KO:K08963] [EC:5.3.1.23]
P262_04076  Methylthioribulose-1-phosphate dehydratase [KO:K08964] [EC:4.2.1.109]
P262_04077  Enolase-phosphatase E1 [KO:K09880] [EC:3.1.3.77]
P262_04079  acireductone dioxygenase [KO:K08967] [EC:1.13.11.53 1.13.11.54]
P262_00601  aromatic amino acid aminotransferase [KO:K00832] [EC:2.6.1.57]
P262_02358  hypothetical protein [KO:K08968] [EC:1.8.4.14]
P262_02144  DNA cytosine methylase [KO:K00558] [EC:2.1.1.37]
P262_05036  hypothetical protein [KO:K00558] [EC:2.1.1.37]
P262_02750  cytosine methylase [KO:K00558] [EC:2.1.1.37]
P262_01236  luxS protein [KO:K07173] [EC:4.4.1.21]
P262_00558  lysC protein [KO:K00928] [EC:2.7.2.4]
P262_04899  bifunctional aspartokinase I/homoserine dehydrogenase I [KO:K12524] [EC:2.7.2.4 1.1.1.3]
P262_00209  bifunctional aspartate kinase II/homoserine dehydrogenase II [KO:K12525] [EC:2.7.2.4 1.1.1.3]
P262_00362  aspartate-semialdehyde dehydrogenase [KO:K00133] [EC:1.2.1.11]
P262_00533  Homoserine O-succinyltransferase [KO:K00651] [EC:2.3.1.46 2.3.1.31]
P262_00208  cystathionine gamma-synthase [KO:K01739] [EC:2.5.1.48]
P262_05519  branched-chain amino acid aminotransferase [KO:K00826] [EC:2.6.1.42]
P262_01234  gshA protein [KO:K01919] [EC:6.3.2.2]
P262_00995  glutathione synthetase [KO:K01920] [EC:6.3.2.3]
P262_03660  aromatic amino acid aminotransferase [KO:K00813] [EC:2.6.1.1]
P262_01463  3-mercaptopyruvate sulfurtransferase [KO:K01011] [EC:2.8.1.1 2.8.1.2]
P262_02881  hypothetical protein [KO:K00016] [EC:1.1.1.27]
P262_01082  hypothetical protein [KO:K25316] [EC:5.1.1.10]
P262_02213  D-cysteine desulfhydrase [KO:K05396] [EC:4.4.1.15]
P262_05318  hypothetical protein [KO:K00024] [EC:1.1.1.37]
P262_01138  L-serine deaminase II [KO:K01752] [EC:4.3.1.17]
P262_02384  L-serine dehydratase 1 [KO:K01752] [EC:4.3.1.17]
P262_01585  cysteine synthase B [KO:K12339] [EC:2.5.1.144]
P262_01026  D-3-phosphoglycerate dehydrogenase [KO:K00058] [EC:1.1.1.95 1.1.1.399]
P262_03687  3-phosphoserine/phosphohydroxythreonine 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
csi00010  Glycolysis / Gluconeogenesis
csi00250  Alanine, aspartate and glutamate metabolism
csi00260  Glycine, serine and threonine metabolism
csi00290  Valine, leucine and isoleucine biosynthesis
csi00430  Taurine and hypotaurine metabolism
csi00480  Glutathione metabolism
csi00620  Pyruvate metabolism
csi00640  Propanoate metabolism
csi00770  Pantothenate and CoA biosynthesis
csi00900  Terpenoid backbone biosynthesis
csi00920  Sulfur metabolism
KO pathway
ko00270   
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