# Candidate

orgId: NCBI__GCA_020634015.1
pathwayId: arg
stepId: argH
locusId: MCB9474495.1
sysName: H6678_11860
desc: aspartate ammonia-lyase
curatedIds: curated2:Q5SLL0
otherIds:
BRENDA::P0AC38,CharProtDB::CH_024464,SwissProt::P0AC38,ecocyc::ASPARTASE-MONOMER,metacyc::ASPARTASE-MONOMER


orgId: NCBI__GCA_020634015.1
pathwayId: gly
stepId: glyXS
locusId: MCB9473897.1
sysName: H6678_08815
desc: formyltetrahydrofolate deformylase
curatedIds: uniprot:Q8G509
otherIds:
BRENDA::P37051,CharProtDB::CH_002039,SwissProt::P37051,ecocyc::FORMYLTHFDEFORMYL-MONOMER,metacyc::FORMYLTHFDEFORMYL-MONOMER


orgId: NCBI__GCA_020634015.1
pathwayId: his
stepId: hisA
locusId: MCB9474967.1
sysName: H6678_14300
desc: molybdopterin molybdotransferase MoeA
curatedIds: curated2:B9KXJ4
otherIds:
BRENDA::P12281,CharProtDB::CH_002528,SwissProt::P12281,ecocyc::EG10153-MONOMER,metacyc::EG10153-MONOMER


orgId: NCBI__GCA_020634015.1
pathwayId: met
stepId: metH
locusId: MCB9474526.1
sysName: H6678_12015
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


# RequirementNotMet

orgId: NCBI__GCA_020634015.1
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.


