D-threitol serves as a antifreeze agent in the Alaskan beetle Upis ceramboides.
[1]. Walters KR Jr, et al. Cryoprotectant biosynthesis and the selective accumulation of threitol in the freeze-tolerant Alaskan beetle, Upis ceramboides. J Biol Chem. 2009 Jun 19;284(25):16822-31.
















