| id | GO:0033014 Detailed information
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| name | tetrapyrrole biosynthetic process
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| namespace | biological_process
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| def | "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]
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| is_a | GO:0018130 ! heterocycle biosynthetic process
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| is_a | GO:0033013 ! tetrapyrrole metabolic process
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| is_a | GO:0044271 ! cellular nitrogen compound biosynthetic process
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