EOG8N06VS	GO:0033014	22/80	tetrapyrrole biosynthetic process	biological_process	"The chemical reactions and pathways leading to the formation of tetrapyrroles, natural pigments containing four pyrrole rings joined by one-carbon units linking position 2 of one pyrrole ring to position 5 of the next." [CHEBI:26932, GOC:mah]
EOG8N06VS	GO:0004418	22/80	hydroxymethylbilane synthase activity	molecular_function	"Catalysis of the reaction: H(2)O + 4 porphobilinogen = hydroxymethylbilane + 4 NH(4)(+)." [EC:2.5.1.61, RHEA:13188]
EOG8N06VS	GO:0018160	21/80	peptidyl-pyrromethane cofactor linkage	biological_process	"The covalent binding of a pyrromethane (dipyrrin) cofactor to protein via the sulfur atom of cysteine forming dipyrrolylmethanemethyl-L-cysteine." [CHEBI:30410, RESID:AA0252]