title: Purification of individual tRNAs using a monoclonal anti-AMP antibody affinity column.
abstract: A murine monoclonal anti-AMP antibody affinity matrix was used for isolation of individual species of amino acid transfer nucleic acids (tRNAs). The antibodies had been prepared using 5'-AMP covalently attached to bovine serum albumin as antigen and exhibited high affinity for 5'-AMP but greatly reduced affinity for 3'-AMP. Native uncharged tRNAs that terminate in a 5'-AMP group on the amino acid acceptor arm of the molecule bind tightly to the anti-AMP affinity matrix, whereas aminoacylated tRNAs are not retained. This allows separation of a particular tRNA species as its aminoacyl derivative from a complex mixture of uncharged tRNAs under very mild conditions.
mesh_terms: D000249:Adenosine Monophosphate / Q000276:immunology*; D000911:Antibodies, Monoclonal / Q000276:immunology*; D002846:Chromatography, Affinity; D012343:RNA, Transfer / Q000302:isolation & purification*; D012346:RNA, Transfer, Amino Acyl / Q000302:isolation & purification
chemical_list: D000911:Antibodies, Monoclonal; D012346:RNA, Transfer, Amino Acyl; D000249:Adenosine Monophosphate; D012343:RNA, Transfer