COX10 transforms heme to heme O

Stable Identifier
R-HSA-2995330
Type
Reaction [transition]
Species
Homo sapiens
Compartment
Synonyms
(2E,6E)-farnesyl diphosphate + H2O + heme b => diphosphate + Fe(II)-heme o
ReviewStatus
5/5
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Heme A and less frequently heme O function as prosthetic groups of heme-copper respiratory oxidases(Rivett et al. 2021). Mitochondrial protoheme IX farnesyltransferase (COX10) mediates the transformation of protoheme IX (heme) and farnesyl diphosphate (FAPP) to heme O (Glerum & Tzagoloff 1994). COX10 is highly expressed in muscle, heart and brain (Murakami et al. 1997).
Literature References
PubMed ID Title Journal Year
9177788 Genomic structure and expression of the human heme A:farnesyltransferase (COX10) gene

Reiter, LT, Murakami, T, Lupski, JR

Genomics 1997
34428995 Biosynthesis and trafficking of heme o and heme a: new structural insights and their implications for reaction mechanisms and prenylated heme transfer

Feig, M, Rivett, ED, Heo, L, Hegg, EL

Crit Rev Biochem Mol Biol 2021
8078902 Isolation of a human cDNA for heme A:farnesyltransferase by functional complementation of a yeast cox10 mutant

Tzagoloff, A, Glerum, DM

Proc. Natl. Acad. Sci. U.S.A. 1994
Participants
Participates
Catalyst Activity

protoheme IX farnesyltransferase activity of COX10(?-443) [mitochondrial inner membrane]

Orthologous Events
Authored
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