Posted: July 16th, 2017

Of the metabolic sequences below, which one represents the correct formation of heme from porphobilinogen (PBG)?

Of the metabolic sequences below, which one represents the correct formation of heme
from porphobilinogen (PBG)?
coproporphyrinogen to uroporphyrinogen to protoporphyrinogen IX to protoporphyrin
IX to heme
protoporphyrin IX to uroporphyrin to coproporphyrin to heme
uroporphyrinogen to coproporphyrinogen to protoporphyrinogen IX to protoporphyrin
IX to heme
uroporphyrin to coproporphyrin to protoporphyrin IX to heme