Nucleic Acids Research, 1985, Vol. 13, No. 7 2583-2601
© 1985
Articles |
Novel non-suppressing mutants of Escherichia coli tRNATyr su3+
Department of Biology, Yale University New Haven, CT 06520, USA
Received November 28, 1984. Revised February 27, 1985. Accepted February 27, 1985.
Several addition and deletion mutations were constructed in the region of the gene for Escherichia coli tRNATyr
corresponding to the dihydrouracil loop of the mature tRNA. None of these resulting mutants had detectable suppressor function compared to the parent gene yet some directed the synthesis of mature tRNA. These latter mutants may affect the ability of the tRNA to be aminoacylated or to interact with the translational machinery on the ribosome.