Journal
JOURNAL OF BIOLOGICAL CHEMISTRY
Volume 282, Issue 31, Pages 22364-22369Publisher
AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
DOI: 10.1074/jbc.M701801200
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- NINDS NIH HHS [R01 NS38050-03] Funding Source: Medline
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Long chain fatty acyl glycines represent a new class of signaling molecules whose biosynthetic pathway is unknown. Here we report that cytochrome c catalyzes the formation of oleoylglycine from oleoyl-CoA and glycine, in the presence of hydrogen peroxide. The identity of oleoylglycine product was confirmed by isotope labeling and fragmentation mass spectrometry. Synthesis of oleoylglycine by cytochrome c was dependent upon substrate concentration and time. Other heme-containing proteins, myoglobin and hemoglobin, did not catalyze oleoylglycine synthesis. The functional properties of the reaction closely resemble those observed for the ability of cytochrome c to mediate the synthesis of oleamide from oleoyl-CoA and ammonia, in the presence of hydrogen peroxide (Driscoll, W. J., Chaturvedi., S., and Mueller, G. P. (2007) J. Biol. Chem. 282). The ability of cytochrome c to catalyze the formation of oleoylglycine experimentally indicates the potential importance of cytochrome c as a novel mechanism for the generation of long chain fatty acyl glycine messengers in vivo.
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