# Candidate

orgId: NCBI__GCF_009909615.1
pathwayId: lys
stepId: dapH
locusId: WP_160632337.1
sysName: GQN54_RS04570
desc: DapH/DapD/GlmU-related protein
curatedIds: curated2:A7HJ58
otherIds:
CharProtDB::CH_088634,SwissProt::P77791,ecocyc::MALTACETYLTRAN-MONOMER,metacyc::MALTACETYLTRAN-MONOMER


orgId: NCBI__GCF_009909615.1
pathwayId: met
stepId: metH
locusId: WP_160631245.1
sysName: GQN54_RS01485
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__GCF_009909615.1
pathwayId: phe
stepId: PPYAT
locusId: WP_160632370.1
sysName: GQN54_RS04745
desc: branched-chain amino acid aminotransferase
curatedIds:
CharProtDB::CH_024500,ecocyc::BRANCHED-CHAINAMINOTRANSFER-MONOMER,metacyc::BRANCHED-CHAINAMINOTRANSFER-MONOMER


orgId: NCBI__GCF_009909615.1
pathwayId: trp
stepId: trpD_1
locusId: WP_160632918.1
sysName: GQN54_RS07520
desc: glutamine-hydrolyzing GMP synthase
curatedIds: curated2:P26923
otherIds:
BRENDA::P04079,CharProtDB::CH_003303,SwissProt::P04079,ecocyc::GMP-SYN-MONOMER,metacyc::GMP-SYN-MONOMER


# RequirementNotMet

orgId: NCBI__GCF_009909615.1
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.


