Fidelity of secondary and tertiary interactions in tRNA - PubMed (original) (raw)

Fidelity of secondary and tertiary interactions in tRNA

T Haselman et al. Nucleic Acids Res. 1988.

Free PMC article

Abstract

Contingency table analysis has previously been used to detect sequence correlations in RNAs caused by either secondary or tertiary interactions. An approach known as matrix reduction is developed here as an alternative to the usual Chi square test. This approach is especially sensitive to covariation between equivalent positions and is effective at detecting tertiary interactions that exhibit such covariation. Matrix reduction was also effective at detecting Watson-Crick base-pairs that exhibit a high degree of pairing fidelity. The method was applied to five closely related structural classes of tRNA and a number of tertiary interactions were detected in each class.

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