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Comparison of several calculations of helix–coil transitions in hetergeneous polymers

✍ Scribed by Thomas R. Fink; Donald M. Crothers

Publisher
Wiley (John Wiley & Sons)
Year
1968
Tongue
English
Weight
427 KB
Volume
6
Category
Article
ISSN
0006-3525

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✦ Synopsis

S ynposis

Random number methods are used to calculate helix-coil transition curves for the model of a heterogeneous polypeptide of random sequence. These curves are compared with several other calculations. The random number computations confirm the exact calculation of Lehman; among the several approximate calculations examined only that of Fixman and Zeroka agrees closely with results of the random number met.hod over the whole range of conditions considered. Calculations are also reported of the average lengt,h of helix and coil sections in a heterogeneous molecule of random sequence which is undergoing the helix-coil transition.

📜 SIMILAR VOLUMES

Conformation of polypeptide in the, heli
Conformation of polypeptide in the, helix–coil transition region
✍ T. M. Birshtein 📂 Article 📅 1969 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 96 KB 👁 2 views

## Conformation of Polypeptide i n the Helix-Coil Transition Region A recently published work by Go, Saito, and Ochiail presented a calculation of the mean values of the second (R2) and the fourth (R4) powers of the end-to-end distance of the polypeptide chain in the helix-coil transition region.

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✍ M. Gō; N. Saitô 📂 Article 📅 1970 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 60 KB 👁 2 views

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✍ D. D. F. Shiao; J. M. Sturtevant 📂 Article 📅 1973 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 432 KB 👁 1 views

## Abstract Thermal denaturation of calf thymus DNA at both alkaline and neutral pH values was studied by differential scanning calorimetry. It was shown that the dependence of the enthalpy of transition on pH and salt concentration could be accounted for on the basis of a heat capacity change of +