Metabolism Quiz
Mitochondrial matrix

β-Oxidation mnemonics

Four steps, repeated. Two carbons off per round.

The four steps
Oxidize Hydrate Oxidize Thiolyze
Word by word
StepWordStands forEnzyme wordEnzyme
· Fatty acyl-CoA (matrix) (entry) Carnitine acyltransferase I
1 Enoyl-CoA Oxidize Acyl-CoA dehydrogenase
2 3-Hydroxyacyl-CoA Hydrate Enoyl-CoA hydratase
3 3-Ketoacyl-CoA Oxidize 3-Hydroxyacyl-CoA dehydrogenase
4 Acetyl-CoA + shortened acyl-CoA Thiolyze Thiolase

A mnemonic only sticks once you have used it. The quiz and the rebuild below both draw on these exact steps.