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. 1982 Apr 24;10(8):2701-8.
doi: 10.1093/nar/10.8.2701.

Adenine-guanine base pairing ribosomal RNA

W Traub, J L Sussman
Free PMC article

Adenine-guanine base pairing ribosomal RNA

W Traub et al. Nucleic Acids Res. .
Free PMC article

Abstract

Analyses of secondary structures proposed for ribosomal RNA's show that, of the different kinds of base pairs directly adjoining the ends of postulated double-helical regions, only A-G with A at the 5' end significantly exceeds the number expected for a random base distribution. An A(syn)-G(trans) hydrogen-bonded basepair is proposed. This could fit at the end of an undistorted double helix, but would prevent further base stacking, thus favoring a break in the double helix to produce a non-linear tertiary structure.

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