See Also: Porphobilinogen(medicine)
porphobilinogen(dictionary)
porphobilinogen oxygenase(medicine)
porphobilinogen synthase(medicine)
porphobilinogen synthase porphyria(medicine)

porphobilinogen (iou)



porphobilinogen noun. M20.
[from PORPHOBILIN + -OGEN.]
Biochemistry. A colourless crystalline substituted pyrrole, C10H14N2O4, which is a metabolic precursor of porphyrins and is excreted in the commoner forms of porphyria.