4-trimethylaminobutyraldehyde dehydrogenase je enzyme ninu ara awon eniyan ti ALDH9A1 gene maa n koodu fun.Awon itokasiIwe akasiwaju Ayoka kukuru.. 
(Ophikún Koellokete, New Comboation, p. 283 + plate XV, figures 2, 2a, 2b). 