Titin(肌联蛋白)是目前已知的最大的蛋白质，它的分子量为2700kDa(25,000多个氨基端)，长度为1μm，约占肌节的一半，是高度弹性分子。根据IUPAC(国际理论和应用化学联合会)命名规则，该肌联蛋白的名字足足有189819个字母，是名副其实最大的单词。

一个坐在那啥事都不干快速读完也要读3个多少时，别以为没有这样的“傻子”，下面视频中这哥们就这么干了。不禁感慨这哥们不是一般的有耐性哇，当然这视频也不是单纯的一直读，2:09:21有惊喜哦。

http://player.youku.com/player.php/sid/XNDc2NTcwNTY0/v.swf

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