Genetics, Vol 129, 669-673, Copyright © 1991


INVESTIGATIONS

Seven-Base-Pair Inverted Repeats in DNA Form Stable Hairpins in Vivo in Saccharomyces cerevisiae

D. K. Nag and T. D. Petes
Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599-3280

Palindromic sequences in single-stranded DNA and RNA have the potential for intrastrand base pairing, resulting in formation of ``hairpin'' structures. We previously reported a genetic method for detecting such structures in vivo in the yeast Saccharomyces cerevisiae. Below, we describe evidence indicating that a 14-base-pair palindrome (7 bp per inverted repeat) is sufficient for formation of a hairpin in vivo.


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