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DNA的“整型”蛋白质,不止单程工作
为了发现SMC马达的反向齿轮,研究人员使用了一种先进的自制显微镜来观察单个DNA分子上的单个蛋白质。这本身就是一项令人印象深刻的成就,正如Barth解释的那样:“单个细胞包含数百万种蛋白质,而人体由数万亿个细胞组成。提取出一些蛋白质,并能够一个一个地‘观察’它们,这是纳米技术的一项了不起的壮举,它涉及到纳米尺度的成像——比人类头发的宽度还小10万纳米。” ...
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