Biological process

porphyrin anabolism, porphyrin biosynthesis, porphyrin biosynthetic process, porphyrin formation, porphyrin synthesis

The chemical reactions and pathways resulting in the formation of any member of a large group of derivatives or analogs of porphyrin. Porphyrin consists of a ring of four pyrrole nuclei linked each to the next at their alpha positions through a methine group.