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Protoporphyrin vs Porphyrinogen - What's the difference?

protoporphyrin | porphyrinogen |

In biochemistry terms the difference between protoporphyrin and porphyrinogen

is that protoporphyrin is any porphyrin that lacks a central metal ion while porphyrinogen is a reduced form of porphyrin that is an intermediate in the biosynthesis of heme.

protoporphyrin

English

Noun

(wikipedia protoporphyrin) (en noun)
  • (biochemistry) Any porphyrin that lacks a central metal ion

    • porphyrinogen

    English

    Noun

    (en noun)
  • (biochemistry) A reduced form of porphyrin that is an intermediate in the biosynthesis of heme