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Comparative Study
. 1981 Jun 25;9(12):2961-70.
doi: 10.1093/nar/9.12.2961.

Structural comparison of two yeast tRNA Glu 3 genes

A Eigel, J Olah, H Feldmann
Free PMC article
Comparative Study

Structural comparison of two yeast tRNA Glu 3 genes

A Eigel et al. Nucleic Acids Res. .
Free PMC article

Abstract

DNA sequences in a 1.7 kb Pst fragment from yeast have been determined. This fragment is part of a yeast 7.4 kb Hind III segment cloned ino pBR322 (pY 5). The fragment carries a single gene for a glutamate tRNA. The coding portion of this gene is identical in sequence to that of the tRNA Glu 3 gene from pY 20 [1]. The flanking regions differ in their sequences, but possible secondary structures within the 5'-flanking regions bear similar features. Sequence homologies between pY 5 and pY 20 were detected far outside the tRNA genes. More surprisingly, extended sequence homologies were seen between the flanking regions of the pY 20 tRNA Glu 3 gene and a tRNA Ser gene [2,3]. We have also checked the known tRNA genes for structural similarities. Hybridization studies indicate that portions of the Pst fragment are repeated within the yeast genome.

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References

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