Abstract
This report describes experiments showing that tRNA Ala II can be cleaved specifically at the G residue of its anticodon to give “half” molecules in high yield. Neither of these fragments has alanine-acceptor activity, but this activity can be reconstituted by mixing the fragments in the presence of Mg +2 . In dilute salt, on the other hand, the active complex dissociates spontaneously at 25° into the two fragments. Thus, both “halves” of tRNA Ala II are necessary for acceptor activity and, in the presence of Mg +2 , combination of these fragments to give an active duplex is thermodynamically favorable.
Dates
Type | When |
---|---|
Created | 19 years, 3 months ago (May 31, 2006, 2:12 a.m.) |
Deposited | 3 years, 4 months ago (April 13, 2022, 10 a.m.) |
Indexed | 1 year, 7 months ago (Jan. 18, 2024, 9:37 p.m.) |
Issued | 56 years, 5 months ago (April 1, 1969) |
Published | 56 years, 5 months ago (April 1, 1969) |
Published Online | 56 years, 5 months ago (April 1, 1969) |
Published Print | 56 years, 5 months ago (April 1, 1969) |
@article{Imura_1969, title={TRANSFER RNA, III. RECONSTITUTION OF ALANINE ACCEPTOR ACTIVITY FROM FRAGMENTS PRODUCED BY SPECIFIC CLEAVAGE OF tRNA Ala II AT ITS ANTICODON}, volume={62}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.62.4.1203}, DOI={10.1073/pnas.62.4.1203}, number={4}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Imura, Nobumasa and Schwam, Harvey and Chambers, Robert W.}, year={1969}, month=apr, pages={1203–1209} }