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首页> 外文期刊>Biochimica et biophysica acta: BBA: International journal of biochemistry, biophysics and molecular biololgy. Proteins and Proteomics >A comparison of solution conformation and hydrodynamic properties of equine, porcine and rabbit serum albumin using viscometric measurements
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A comparison of solution conformation and hydrodynamic properties of equine, porcine and rabbit serum albumin using viscometric measurements

机译:用粘度测量法比较马,猪和兔血清白蛋白的溶液构象和流体力学性质

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摘要

This paper presents the results of viscosity determinations on aqueous solutions of equine, porcine and rabbit serum albumin over a wide range of concentrations and at temperatures ranging from 5 °C to (42–45) °C. The results are compared with human and bovine serum albumin previously studied. Viscosity–temperature dependence is discussed on the basis of the modified Arrhenius formula. The effective specific volume, the activation energy and entropy of viscous flow for all investigated albumins are compared. Viscosity–concentration dependence, in turn, is discussed on the basis of Mooney equation. Based on the assumption that theoretical and experimental values of Simha factor – at high temperature limit – are equal to each other, the hydrodynamic volume of the studied albumins has been calculated. The numerical values of a self-crowding factor were also obtained. At low concentration limit, the numerical values of the intrinsic viscosity and of Huggins coefficient were compared.
机译:本文介绍了在浓度范围从5°C到(42-45)°C的各种浓度的马,猪和兔血清白蛋白水溶液上的粘度测定结果。将结果与先前研究的人和牛血清白蛋白进行比较。在修正的阿伦尼乌斯公式的基础上讨论了粘度与温度的关系。比较了所有研究白蛋白的有效比容,活化能和粘性流的熵。反过来,在门尼方程的基础上讨论了粘度与浓度的关系。基于高温条件下Simha因子的理论值和实验值彼此相等的假设,计算出了所研究白蛋白的流体动力学体积。还获得了自拥挤因子的数值。在低浓度极限下,比较特性粘度和哈金斯系数的数值。

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