Experimental thermodynamics of the helix-random coil transition. II. Calorimetric measurement of transition enthalpies of poly A in acid aqueous solution

Klump H, Ackermann T, Neumann E (1969)
Biopolymers 7(3): 423-431.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
The enthalpy change accompanying the double helix-coil transition of polyriboadenylic acid (poly A) in aqueous solution has been measured optically and calorimetrically in the pH range 5.7-4.5. The course of this cooperative transition was followed optically by measuring changes in ultraviolet absorption as a function of temperature at different pH values, and calorimetrically by determining the heat capacity of the solution through the transition region. From the latter measurements, the enthalpy of transition was calculated. It is shown, that H is dependent on pH as it is expected from the influence of protonation of the double helix of poly A.
Stichworte
Biochemistry and molecular biology; Biophysics
Erscheinungsjahr
1969
Zeitschriftentitel
Biopolymers
Band
7
Ausgabe
3
Seite(n)
423-431
ISSN
0006-3525
eISSN
1097-0282
Page URI
https://pub.uni-bielefeld.de/record/1774358

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Klump H, Ackermann T, Neumann E. Experimental thermodynamics of the helix-random coil transition. II. Calorimetric measurement of transition enthalpies of poly A in acid aqueous solution. Biopolymers. 1969;7(3):423-431.
Klump, H., Ackermann, T., & Neumann, E. (1969). Experimental thermodynamics of the helix-random coil transition. II. Calorimetric measurement of transition enthalpies of poly A in acid aqueous solution. Biopolymers, 7(3), 423-431. doi:10.1002/bip.1969.360070313
Klump, H., Ackermann, T., and Neumann, E. (1969). Experimental thermodynamics of the helix-random coil transition. II. Calorimetric measurement of transition enthalpies of poly A in acid aqueous solution. Biopolymers 7, 423-431.
Klump, H., Ackermann, T., & Neumann, E., 1969. Experimental thermodynamics of the helix-random coil transition. II. Calorimetric measurement of transition enthalpies of poly A in acid aqueous solution. Biopolymers, 7(3), p 423-431.
H. Klump, T. Ackermann, and E. Neumann, “Experimental thermodynamics of the helix-random coil transition. II. Calorimetric measurement of transition enthalpies of poly A in acid aqueous solution”, Biopolymers, vol. 7, 1969, pp. 423-431.
Klump, H., Ackermann, T., Neumann, E.: Experimental thermodynamics of the helix-random coil transition. II. Calorimetric measurement of transition enthalpies of poly A in acid aqueous solution. Biopolymers. 7, 423-431 (1969).
Klump, H., Ackermann, Theodor, and Neumann, Eberhard. “Experimental thermodynamics of the helix-random coil transition. II. Calorimetric measurement of transition enthalpies of poly A in acid aqueous solution”. Biopolymers 7.3 (1969): 423-431.
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