This entry represents methylmalonic aciduria and homocystinuria type D protein (also known as cobalamin trafficking protein CblD) and homologues. These proteins are involved in cobalamin (vitamin B12) metabolism and trafficking [, , , ]CblD plays a role in regulating the biosynthesis and the proportion of two coenzymes, methylcob(III)alamin (MeCbl) and 5'-deoxyadenosylcobalamin (AdoCbl) [, , ]. It also promotes the oxidation of cob(II)alamin bound to MMACHC [].
