SAM decarboxylase
S-adenosylmethionine decarboxylase (AMD) catalyzes the conversion of S-adenosylmethionine (AdoMet) to S-adenosylmethioninamine . AMD is part of the polyamine biosynthesis, in particular in the biosynthesis of spermine and spermidine from putrescine. AMD uses a covalently bound pyruvate as a cofactor. The active AMD is generated by post-translational cleavage of a precursor molecule. The cleavage results in non-identical α and β subunits and the modification of a serine residue to pyruvate. There are 2 classes of AMD. AMD I is found in bacteria and archae, AMD II is found in eukaryotes.
3D structures of S-adenosylmethionine decarboxylase3D structures of S-adenosylmethionine decarboxylase
Updated on 22-August-2016