Key points are not available for this paper at this time.
The sequence of 29 nucleotides immediately preceding the starting point of transcription of the E. coli tyrosine tRNA gene has been determined. This is: Formula: see text The sequence contains regions of 2-fold symmetry. Transcription of the gene begins at the first nucleotide to the left of nucleotide 1 and is leftward.
Sekiya et al. (Thu,) studied this question.