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Berg, B.H. et al.

Comparison of the rate of aminoacylation of tRNA isolated from NMRI mouse liver with tRNA isolated from Krebs II ascites or mouse plasmacytoma cells.

A comparison of the initial rates of aminoacylation of tRNAs isolated from different sources for 17 amino acids was performed. tRNA was isolated from NMRI mouse liver (tRNA L) and from Krebs II ascites tumors (tRNA Asc), and aminoacyl-tRNA synthetases were prepared from the latter cells. The aminoacylation of tRNA Asc was 31-88% slower than the charging of tRNA L. In similar studies, tRNA from a mouse plasmacytoma tumor (tRNA Mt) and from suspension cultured cells of the same cell line (tRNA M) were compared to tRNA L in the aminoacylation reaction catalysed by synthetases isolated from tumor or suspension cultured cells. About half of the tRNAs (Mt or M) for the 17 amino acids tested differed in charging rate when compared to tRNA L, but the differences were not as great as those observed in the experiments where tRNA Asc and tRNA L were compared.[1]

References

Comparison of the rate of aminoacylation of tRNA isolated from NMRI mouse liver with tRNA isolated from Krebs II ascites or mouse plasmacytoma cells. Berg, B.H., Pryme, I.F. Cancer Lett. (1981) [Pubmed]

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