Hemeprotein

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Hemeproteins are "proteins that contain an iron-porphyrin, or heme, prosthetic group resembling that of hemoglobin."[1]

Examples of hemeproteins are:

Porphyrias are metabolic diseases in the heme biosynthetic pathway characterized by buildup of porphyrin precursors such as porphobilinogen (PBG).

References