# Candidate

orgId: NCBI__GCA_017303675.1
pathwayId: met
stepId: metH
locusId: MBN8584462.1
sysName: J0M37_05150
desc: methionine synthase
hmmId: TIGR02082
hmmDesc: metH: methionine synthase (EC 2.1.1.13)
curatedIds:
CharProtDB::CH_090726,SwissProt::P13009,ecocyc::HOMOCYSMETB12-MONOMER,metacyc::HOMOCYSMETB12-MONOMER


orgId: NCBI__GCA_017303675.1
pathwayId: phe
stepId: PPYAT
locusId: MBN8585604.1
sysName: J0M37_10960
desc: branched-chain amino acid transaminase
curatedIds:
CharProtDB::CH_024500,ecocyc::BRANCHED-CHAINAMINOTRANSFER-MONOMER,metacyc::BRANCHED-CHAINAMINOTRANSFER-MONOMER


# RequirementNotMet

orgId: NCBI__GCA_017303675.1
pathwayId: cys
ruleId: from-serine-homocysteine
requiredPathwayId: met
requiredRuleId: homocysteine
comment:
Cysteine biosynthesis via the reverse transsulfuration pathway requires homocysteine, which is an intermediate in methionine biosynthesis. Homocysteine is also an intermediate in the S-adenosylmethionine cycle, so many organisms that cannot synthesize methionine can convert it to homocysteine.


