Elleman T C, Crewther W G, Van Der Touw J
Biochem J. 1978 Aug 1;173(2):387-91. doi: 10.1042/bj1730387.
The distribution of the different types of amino acid residue within two helical segments isolated from the low-sulphur fraction of wool keratin was examined for periodicity and larger sequence repeats. Both were detected, the former corresponding to the geometry of the proposed coiled=coil structure and the latter suggesting a distant gene duplication, though the existence of the repeat might equally well be related to interactions within the microfibril.
对从羊毛角蛋白低硫组分中分离出的两个螺旋片段内不同类型氨基酸残基的分布进行了周期性和较大序列重复的检测。两者均被检测到，前者与所提出的卷曲螺旋结构的几何形状相对应，后者表明存在远距离基因重复，尽管这种重复的存在也可能同样与微原纤维内的相互作用有关。
