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Subject: if purely electrostatic in origin biochem. Пожалуйста, помогите перевести.Выражение встречается в следующем контексте:
An important difference between peroxidases and CcO metals that governs their primary catalytic roles is redox potentials. Specifically, the ferric/ferrous couples of peroxidases have relatively low midpoint potentials: Em7 is -270mV for HRP [11] and -194mV for CcP [13]. Both values are pH-dependent in at least part of the physiological pH range due to redox-linked protonation of the distal histidine [12, 14]. In CcP, a second histidine, H-181, located close to a heme propionate, has also been reported to undergo protonation together with the distal H-52, linked to the ferric/ferrous heme transition and resulting in two protons bound per electron [13, 15]. However, this unexpected result requires further confirmation since, if purely electrostatic in origin, would require an extreme driving force [16] and instead suggests major structural changes. Контекст привела большой - иначе не понятно...
Заранее спасибо
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