methyl 6-[6-amino-2-(methylamino)-8-oxo-7,8-dihydro-1H-imidazo[4,5-g]quinazolin-4-yl]-5,6-dideoxy-3-O-methyl-beta-D-ribo-hexofuranoside

P28720 — Queuine tRNA-ribosyltransferase