Heme O

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Heme O
Heme o structure.svg
Identifiers
CAS number 137397-56-9
PubChem 6323367
MeSH heme+O
Properties
Molecular formula C49H58O5N4Fe
Molar mass 838.854 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Heme O (or haem O) differs from the closely related heme A by having a methyl group at ring position 8 instead of the formyl group. The isoprenoid chain at position 2 is the same.

Heme O, found in the bacterium Escherichia coli,[1] functions in a similar manner to heme A in mammalian oxygen reduction.

References[edit]

  1. ^ Myles R. Cheesman, Vasily S. Oganesyan, Nicholas J. Watmough, Clive S. Butler, and Andrew J. Thomson (2004). "The Nature of the Exchange Coupling between High-Spin Fe(III) Heme o3 and CuB(II) in Escherichia coli Quinol Oxidase, Cytochrome bo3:  MCD and EPR Studies". J. Am. Chem. Soc. 126: 4157–4166. doi:10.1021/ja038858m. 

See also[edit]