Term Name:	porphyrins
Synonyms:	porphyrins
Definition:	Natural pigments containing a fundamental skeleton of four pyrrole nuclei united through the alpha-positions by four methine groups to form a macrocyclic structure.
Ontology:	ChEBI [CHEBI:26214] ( EBI )

Relationships

is a type of:	cyclic tetrapyrrole
has subtype:	5,10,15,20-tetrakis(N-methylpyridinium-3-yl)porphyrin 5,10,15-trisubstituted porphyrin 5,15-disubstituted porphyrin bacteriochlorins beta-substituted porphyrin borylporphyrin Chlorophyll c coproporphyrin Coproporphyrin II Cu(II) meso-Tetra(4-sulfonatophenyl) porphine cytoporphyrins Deuteroporphyrin IX dihydroporphyrin Dimethylprotoporphyrin IX dimethyl ester diporphyrin formylporphyrin haloporphyrin Harderoporphyrin Harderoporphyrinogen Heptacarboxylporphyrin I Heptacarboxylporphyrin III isobacteriochlorins Isocoproporphyrin isoporphyrin meso-substituted porphyrin mesoporphyrins metalloporphyrin octaethylporphyrin Pentacarboxyl porphyrinogen III Pentaporphyrin I phenylporphyrin porphyrin porphyrinogens protoporphyrins triporphyrin uroporphyrin
has_role:	cofactor