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[紫外线和血清素诱导的人血红蛋白结构活性变化]

[Structure-activity changes in human hemoglobin induced by UV-light and serotonin].

作者信息

Vashanov G A, Artiukhov V G

出版信息

Biofizika. 1994 Jul-Aug;39(4):571-5.

PMID:7981266
Abstract

Basic indices of oxygen-binding properties of the human hemoglobin solutions modified by the UV-light (240-390 nm) in dose range 151-604 J/m2 together with serotonin (10(-5)-10(-3) mol/l) have been analysed by means of spectrophotometry registration of the oxyhemoglobin dissociation curves. In these conditions biogenic amine displays maximum photoprotective effect at the concentration 4 x 10(-4) mol/l. At the highest concentrations serotonin exert photosensibilitive that influences the course of the protein molecule disorganisation. It has been demonstrated that three-dimensional surfaces analysis can be used to forecast the influence of the serotonin photoprotection on the hemoglobin functional activity.

摘要

通过对氧合血红蛋白解离曲线进行分光光度法记录,分析了在剂量范围为151 - 604 J/m²的紫外线(240 - 390 nm)以及血清素(10⁻⁵ - 10⁻³ mol/l)作用下,人血红蛋白溶液的氧结合特性基本指标。在这些条件下,生物胺在浓度为4×10⁻⁴ mol/l时表现出最大的光保护作用。在最高浓度时,血清素具有光敏作用,影响蛋白质分子的解体过程。已经证明,三维表面分析可用于预测血清素光保护对血红蛋白功能活性的影响。

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