 |
Mechanisms of Heme
The mechanisms below have been extracted from
MACiE. The substrates and products are abstracted to their essential parts,
which are necessary to explain the reaction the cofactor takes part in. The atoms
involved in the next step are highlighted in red, and the ones that have been changed
by the last step are shown in green. Red takes precedence when both applies.
Mechanism #1 for Heme
Mechanism #2 for Heme
Mechanism #3 for Heme
Description of mechanism
Often, heme is bound to a protein, which acts as a electron carrier substrate in the reaction. Mostly, the iron alone absorbs the electron changes. In mechanism 3 however, the porphyrin ring system formally lacks one electron and therefore exists in a radical state [6].
References
 |
