THERMAL-PROPERTIES OF DNA-POLY(L-LYSINE) SYSTEM

被引：5

作者：

FUJIOKA, K ^{[1
]}

BABA, Y ^{[1
]}

KAGEMOTO, A ^{[1
]}

机构：

[1] OSAKA INST TECHNOL, DEPT GEN EDUC, ASAHI KU, OSAKA 535, JAPAN

来源：

POLYMER JOURNAL | 1979年 / 11卷 / 07期

关键词：

Dna; Dsc; Enthalpy of conformational change; Enthalpy of interaction; Heat of mixing; Poly(L-lysine);

D O I：

10.1295/polymj.11.509

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In order to obtain information about the interaction between DNA and poly(L-lysine), calorimetric studies of DNA–poly(L-lysine) solutions prepared by direct mixing were carried out using a batch-type microcalorimeter and a differential scanning calorimeter. Furthermore, to complement this calorimetric data, CD spectra of DNA–poly(L-lysine) solutions were also measured. From the results of the calorimetric and the spectrophotometric measurements, the enthalpies of the interaction between DNA and poly(L-lysine) and the conformational change of DNA accompanied by an interaction between DNA and poly(L-lysine) were estimated to be about 4 and 6 kJ, respectively. © 1979, The Society of Polymer Science, Japan. All rights reserved.

引用

页码：509 / 513

页数：5

共 15 条

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