Nucleoside Q in tRNA of yellow lupin (Lupinus luteus) seeds

The nucleoside Q, 7-(4,5-cis-dihydroxyl-l-cyclopenten-3-yl-trans-aminomethyl)-7-deazaguanosine, was found in lupin seed tRNA. The nucleoside occurs in only one of the two histidine tRNA species, as proved by their chromatographic properties (RPC-5) following treatment with cyanogen bromide or periodate, and dihydroxyborylphenyl-succinamyl-aminoethyl-cellulose chromatography.