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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >DIRECT ELECTROCHEMISTRY OF HEME UNDECAPEPTIDE IN AQUEOUS SURFACTANT SOLUTIONS - THE EFFECT OF HYDROPHOBICITY AND AXIAL LIGATION ON REDOX POTENTIAL OF HEME
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DIRECT ELECTROCHEMISTRY OF HEME UNDECAPEPTIDE IN AQUEOUS SURFACTANT SOLUTIONS - THE EFFECT OF HYDROPHOBICITY AND AXIAL LIGATION ON REDOX POTENTIAL OF HEME

机译：表面活性剂溶液中血红素十肽的直接电化学-疏水性和轴向连接对血红素氧化还原电势的影响

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Direct electrochemistry of heme undecapeptide (microperoxidase) in micellar solution has been achieved for the first time. Results show a smooth increase in the E-1/2 with increase in surfactant concentration. The diversity of redox potentials of the heme in various redox hemeproteins is an important topic of investigation in recent years. The origin of this diversity can either be variation in axial ligation or hydrophobicity of the heme pocket in different hemeproteins. We report here that association of heme undecapeptide (microperoxidase) with aqueous detergent micelles can indeed modulate the redox potential of the heme to a sizable extent. Micellar environment mimics the hydrophobicity of the protein cavity. Thus, our results demonstrate on how the hydrophobicity can tune the redox potentials of hemeproteins. [References: 16]
机译：血红素十一肽（微过氧化物酶）在胶束溶液中的直接电化学是首次实现。结果表明，E-1 / 2随表面活性剂浓度的增加而平稳增加。近年来，各种氧化还原血红蛋白中血红素的氧化还原电位的多样性是研究的重要课题。这种多样性的起源可以是不同血红蛋白中血红素囊袋的轴向连接变化或疏水性。我们在这里报告，血红素十一肽（微过氧化物酶）与水性洗涤剂胶束的结合确实可以在相当大的程度上调节血红素的氧化还原电位。胶束环境模拟蛋白质腔的疏水性。因此，我们的结果证明了疏水性如何调节血红蛋白的氧化还原电位。 [参考：16]

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