Heme O

Heme O
Identifiers
CAS number 137397-56-9
PubChem 6323367
MeSH heme+O
Properties
Molecular formula C49H58O5N4Fe
Molar mass 838.854 g/mol
 Y (verify) (what is: Y/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
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, functions in a similar manner to heme A in mammalian oxygen reduction.

See also

Active forms
TPP / ThDP (B1) · FMN, FAD (B2) · NAD+, NADH, NADP+, NADPH (B3) · Coenzyme A (B5) · PLP / P5P (B6) · Biotin (B7) · THFA / H4FA, DHFA / H2FA, MTHF (B9) · AdoCbl, MeCbl (B12) · Ascorbic Acid (C) · Phylloquinone (K1), Menaquinone (K2) · Coenzyme F420
Ca2+ · Cu2+ · Fe2+, Fe3+ · Mg2+ · Mn2+ · Mo · Ni2+ · Se · Zn2+
Base forms
vitamins: see vitamins

M: NUT

cof, enz, met

noco, nuvi, sysi/epon, met

drug(A8/11/12)