This enzyme plays a role in freeing proteins from ribulosamines or psicosamines, which might arise from the reaction of amines with glucose and/or glycolytic intermediates. This role is shared by EC?2.7.1.171?(protein-fructosamine 3-kinase), which has, in addition, the unique capacity to phosphorylate fructosamines [1]. The plant enzyme also phosphorylates [protein]-N6-D-erythrulosyl-L-lysine [2]. No activity with [protein]-N6-D-fructosyl-L-lysine [1,2].
Cofactor
History
Reactions
Atp + [protein]-N(6)-D-ribulosyl-L-lysine = adp + [protein]-N(6)-(3-O- phospho-D-ribulosyl)-L-lysine.
