Many members of this family have no known function and are predicted to be integral membrane proteins.One member of the family has been characterised as protein PGR (AtPGR). PGR is suggested to be a potential glucose-responsive regulator in carbohydrate metabolism in plants. This entry also includes protein VTE6, which is a Pphytyl-phosphate kinase catalyzing the conversion of phytyl-monophosphate to phytyl-diphosphate [].
