Rossmann fold is a super secondary structure or domain ( area where one of the coenzyme can bind ) of protein which is alternating beta alpha beta fold .
It is commonly found in enzymes which use FAD, SAM, NAD, NADP.
Mostly these are dehydrogenases. This fold is conserved during evolution.
Examples of such enzymes:
Lactate dehydrogenase
Alcohol dehydrogenase
glyceraldehyde-3-P dehydrogenase
Malate dehydrogenase
Quinone oxidoreductase
6-phospho gluconate dehydrogenase
D- glycerate dehydrogenase
Formats dehydrogenase
3 alpha, 20 beta hydroxy steroid dehydrogenase