Medical Subject Headings

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/MESH/D011524
http://purl.bioontology.org/ontology/MESH/D011524
Preferred Name

Protoporphyrins

Definitions
Porphyrins with four methyl, two vinyl, and two propionic acid side chains attached to the pyrrole rings. Protoporphyrin IX occurs in hemoglobin, myoglobin, and most of the cytochromes.
Type http://www.w3.org/2002/07/owl#Class
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