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Heat of the reaction forming the three-stranded poly (A + 2U) complex

✍ Scribed by Philip D. Ross; Robert L. Scruggs

Book ID
101713797
Publisher
Wiley (John Wiley & Sons)
Year
1965
Tongue
English
Weight
382 KB
Volume
3
Category
Article
ISSN
0006-3525

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✦ Synopsis

+3800 cal./mole (A + 2U) formed and AS = 11.5 cal./mole of (A + 2U) formed. It is concluded from the calorimetric data that the driving force for the poly (A + U) to poly (A + 2U) conversion reaction is the favorable entropy change.

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## Abstract To assess the thermodynamic contribution of the 5‐methyl group of thymine, we have studied the two‐stranded helical complexes poly(dA) Β· poly(dU) and poly(dA) Β· poly(dT) and the three‐stranded complexesβ€”poly(dA) Β· 2poly(dU), poly(dA) Β· poly(dT) Β· poly(dU) and poly(dA) Β· 2poly(dT)β€”by dif