Porphobilinogen

Porphobilinogen is an intermediate in heme biosynthesis (see here). Porphobilinogen is made by condensing two -aminolevulinic acid (ALA) molecules. Subsequently, four porphobilinogen molecules condense to yield a porphyrinogen called uroporphyrinogen (Figure 21.30).

See also: Porphyrin and Heme Metabolism, ALA, Porphyrinogen, Uroporphyrinogen III

INTERNET LINKS:

> 1. Porphyrin and Chlorophyll Metabolism

> 2. Photosynthetic Pigments