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. 1986 Dec;83(24):9373–9377. doi: 10.1073/pnas.83.24.9373

Improved free-energy parameters for predictions of RNA duplex stability.

S M Freier, R Kierzek, J A Jaeger, N Sugimoto, M H Caruthers, T Neilson, D H Turner
PMCID: PMC387140  PMID: 2432595

Abstract

Thermodynamic parameters for prediction of RNA duplex stability are reported. One parameter for duplex initiation and 10 parameters for helix propagation are derived from enthalpy and free-energy changes for helix formation by 45 RNA oligonucleotide duplexes. The oligomer sequences were chosen to maximize reliability of secondary structure predictions. Each of the 10 nearest-neighbor sequences is well-represented among the 45 oligonucleotides, and the sequences were chosen to minimize experimental errors in delta GO at 37 degrees C. These parameters predict melting temperatures of most oligonucleotide duplexes within 5 degrees C. This is about as good as can be expected from the nearest-neighbor model. Free-energy changes for helix propagation at dangling ends, terminal mismatches, and internal G X U mismatches, and free-energy changes for helix initiation at hairpin loops, internal loops, or internal bulges are also tabulated.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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