Function
Catalyzes the phosphorylation of ribose at O-5 in a reaction requiring ATP and magnesium. The resulting D-ribose-5-phosphate can then be used either for sythesis of nucleotides, histidine, and tryptophan, or as a component of the pentose phosphate pathway. Specifically phosphorylates D-ribose. Fails to phosphorylate 4, 5 or 6 D-carbon sugars (erythrose, threose, xylulose, arabinose, fructose and glucose).
Sequence
MHRVQNVQSHVGEYAPDILVVGSCFLDYVGYVDHMPQVGETMHSESFHKGFGGKGANQAVAAGRLGAKVAMVSMVGTDGDGSDYIKELERNGVHTAYMLRTGKSSTGLAMILVDTKSSNNEIVICPNATNYFTPELLRAQTSNYEKILHTGLKYLICQNEIPLPTTLDTIKEAHSRGVYTVFNSAPAPKPAEVEQIKPFLPYVSLFCPNEVEAALITGMKVTDTESAFRAIKALQQLGVRDVVITLGAAGFALSENGAEPVHVTGKHVKAVDTTGAGDCFVGSMVYFMSRGRNLLEACKRANECAAISVTRKGTQLSYPHPSELPAGVT