11. protoporphyrin IX + + ATP + \ rightleftharpoons ADP + phosphate + Mg-protoporphyrin IX + 212. Protoporphyrin IX + + ATP + \ rightleftharpoons ADP + phosphate + Mg-protoporphyrin IX + 2 13. Hemeproteins probably evolved to incorporate the iron atom contained within the protoporphyrin IX ring of heme into proteins. 14. Reports may refer to Free Erythrocyte Protoporphyrin ( FEP ) or Erythrocyte Protoporphyrin ( EP or EPP ). 15. Reports may refer to Free Erythrocyte Protoporphyrin ( FEP ) or Erythrocyte Protoporphyrin ( EP or EPP ). 16. A significant increase in the hepatobiliary excretion on protoporphyrin can damage the liver through both cholestatic phenomena and oxidative stress 17. The heme moiety consists of a porphyrin ring called Fe ( II )-protoporphyrin IX ( FP ). 18. The interior of the active site pocket contains a highly conserved acidic surface that facilitates proton extraction from protoporphyrin . 19. For example, isolation of protoporphyrin IX from blood samples can be used as a diagnostic tool for atherosclerosis. 20. The team transplanted mouse hearts into rats dosed with a chemical, tin protoporphyrin , that blocks HO-1.
