I'm looking for an enzyme that does not function as part of a complex in its active state. Preferably it also is not part of a kinase or other kind of activating cascade as well though I would appreciate any and all names that are not part of a complex in its active state. Also would be better if it does not require post translational modifications. Of course, pre translational modifications/ interactions at rna or dna level are all good. In eukaryotic genome but bonus points for human genome! Thanks!!
Chosen because the esterase seems like a low energy reaction so it wouldn't need energetic co-factors.
Not sure if I should do a new answer or not.