Protein
Adenine phosphoribosyltransferase 1, chloroplastic
Organism
Arabidopsis thaliana
Function
Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis. Contributes primarily to the recycling of adenine into adenylate nucleotides, but is also involved in the inactivation of cytokinins by phosphoribosylation. Catalyzes the conversion of cytokinins from free bases (active form) to the corresponding nucleotides (inactive form).
Similarity
Belongs to the purine/pyrimidine phosphoribosyltransferase family.
Sequence
MQTIIISPLVSHRLCLARAVPCNRLLNNHHRAPPSIRLSNHRSTTSLRLFSSAAASRDSEMATEDVQDPRIAKIASSIRVIPDFPKPGIMFQDITTLLLDTEAFKDTIALFVDRYKDKGISVVAGVEARGFIFGPPIALAIGAKFVPMRKPKKLPGKVISEEYSLEYGTDTIEMHVGAVEPGERAIIIDDLIATGGTLAAAIRLLERVGVKIVECACVIELPELKGKEKLGETSLFVLVKSAA