高能辐射诱导组蛋白八聚体复合物的交联。

K J Deeg, L Katsikas, W Schnabel
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引用次数: 3

摘要

小牛胸腺组蛋白八聚体配合物在n2o饱和的稀水溶液(0.5 g/l, pH 9, [NaClO4] = 1 -4 mol/l)中以50或100 ns的16 MeV电子或60 co - γ射线脉冲照射。时间分辨光散射测量和光吸收测量得出如下结论:由于oh自由基的攻击导致配合物内部交联,八聚体发生了体积收缩。从产品分析推断,通过2,2'-双酚偶联,交联在一定程度上进行。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High energy radiation-induced crosslinking of histone octamer complexes.

Calf thymus histone octamer complexes were irradiated in the native state in N2O-saturated dilute aqueous solution (0.5 g/l, pH 9, [NaClO4] = 1 -4 mol/l) with 50 or 100 ns pulses of 16 MeV electrons or 60Co-gamma-rays. Time resolved light scattering measurements and optical absorption measurements yielded the following: the octamers underwent a volume contraction due to intra-complex-crosslinking induced by the attack of OH-radicals. Crosslinking proceeded to a certain extent via 2,2'-biphenol coupling as inferred from product analyses.

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