Protein
Alpha-D-ribose 1-methylphosphonate 5-triphosphate synthase subunit PhnI
Organism
Escherichia coli (strain K12)
Function
Together with PhnG, PhnH and PhnL is required for the transfer of the ribose triphosphate moiety from ATP to methyl phosphonate. PhnI alone has nucleosidase activity, catalyzing the hydrolysis of ATP or GTP forming alpha-D-ribose 5-triphosphate and adenine or guanine, respectively.
Similarity
Belongs to the PhnI family.
Sequence
MYVAVKGGEKAIDAAHALQESRRRGDTDLPELSVAQIEQQLNLAVDRVMTEGGIADRELAALALKQASGDNVEAIFLLRAYRTTLAKLAVSEPLDTTGMRLERRISAVYKDIPGGQLLGPTYDYTHRLLDFTLLANGEAPTLTTADSEQQPSPHVFSLLARQGLAKFEEDSGAQPDDITRTPPVYPCSRSSRLQQLMRGDEGYLLALAYSTQRGYGRNHPFAGEIRSGYIDVSIVPEELGFAVNVGELLMTECEMVNGFIDPPGEPPHFTRGYGLVFGMSERKAMAMALVDRALQAPEYGEHATGPAQDEEFVLAHADNVEAAGFVSHLKLPHYVDFQAELELLKRLQQEQNHG