MetaCyc Pathway: L-cysteine biosynthesis VI (from L-methionine) in Rhodosporidium toruloides IFO0880

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Methionine adenosyltransferase:
L-methionine + ATP + H2O→S-adenosyl-L-methionine + diphosphate + phosphate (EC 2.5.1.6)
mRNA_5403 (13771)
S-adenosyl-L-methionine + a demethylated methyl donor→S-adenosyl-L-homocysteine + a methylated methyl donor + H+
No genes
Adenosylhomocysteine nucleosidase:
S-adenosyl-L-homocysteine + H2O→S-ribosyl-L-homocysteine + adenine (EC 3.2.2.9)
No genes
S-ribosylhomocysteine lyase:
S-ribosyl-L-homocysteine→L-homocysteine + autoinducer 2 (EC 4.4.1.21)
No genes
Cystathionine beta-synthase:
L-homocysteine + L-serine→L-cystathionine + H2O (EC 4.2.1.22)
mRNA_7344 (15712)
Cystathionine gamma-synthase (in reverse):
L-cystathionine + H+ + succinate→L-cysteine + O-succinyl-L-homoserine (EC 2.5.1.48)
mRNA_3095 (11463)
mRNA_8250 (16618)

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Candidate genes for each reaction are identified from best hits to MetaCyc; by matching EC numbers (which are assigned by TIGRFam, SEED, or best hits to KEGG); or by matching SEED roles to KEGG reactions to MetaCyc reactions. See the "Protein" tab of each gene for more information