Subunit structure of casein micelles from small-angle neutron-scattering.
Subunit structure of casein micelles from small-angle neutron-scattering.
复制标题
小角中子散射的酪蛋白胶束的亚基结构。
DOI：
10.1016/0022-2836(89)90154-x
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发表时间：
1989
影响因子：
5.6
通讯作者：
P. H. Stothart
中科院分区：
文献类型：
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作者：
P. H. Stothart
用小角中子散射法研究了牛奶中全酪蛋白胶束的湿颗粒。用2h2o h2o混合物进行对比，结果表明，先前观测到的散射强度在Q ((47π sin θ)/λ)= 0.035 A∶n−1处的变化主要是由于蛋白质的散射，而不是磷酸钙的散射。测量到的散射与一个简单的蛋白质亚基堆积模型的计算结果一致，表明整个胶束包含的蛋白质亚基与自由酪蛋白亚胶束的大小大致相同，并以短程有序的排列排列。
Wet pellets of whole casein micelles of cows' milk have been studied by small-angle neutron-scattering. Contrast variation using 2 H 2 O H 2 O mixtures showed that the previously observed inflection in scattered intensity at Q ((47π sin θ)/λ)= 0.035 A ̊− 1 is due primarily to scattering from protein, and not from calcium phosphate. Agreement between measured scattering and that calculated for a simple model of packed protein subunits suggests that the whole micelle contains protein subunits of the approximate size of free casein submicelles, packed in a short-range ordered arrangement.