Isolation of mammalian tRNAAspand tRNATyrby lectin-Sepharose affinity column chromatography
- 1 February 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Nucleic Acids Research
- Vol. 4 (2) , 415-423
- https://doi.org/10.1093/nar/4.2.415
Abstract
TRNAAsp from rabbit liver, rat liver and rat ascites hepatoma was readily isolated by concanavalin A-Sepharose (Con A-Sepharose) affinity column chromatography. tRNATyr from these sources was extensively purified by Ricinua communis lectin-Sepharose column chromatography. These results, together with the chromatographic behaviour of four tRNAs (tRNATyr, tRNAHis, tRNAAsn and tRNAAsP) on acetylated DBAE-cellulose column chromatography suggested that tRNAAsP contains a Q* nucleoside species having a mannose moiety while tRNATyr contains Q* nucleoside with galactose. The sugars attached in 4-position of cyclopentene diol in the Q molecule are therefore not present at random in the four tRNAs, but present only in each specific tRNA. This is the first case which shows that plant agglutinin interacts with nucleic Acid as well as polysaccharide and glycoproteins.Keywords
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