Classification of Chromoproteins | Proteins
As indicated by their name, these are coloured proteins, their prosthetic group often contains a metal element (Fe, Cu, Mg). These compounds are generally classified on the basis of their prosthetic group having, or not having, the tetrapyrrol structure called porphyrin and according to their respiratory or non-respiratory physiological role. 1. Porphyrin Chromoproteins: A. Respiratory Pigments: They all contain iron. [...]