Since 1940, various conformations have been proposed for the secondary structure of protein.
自1940年代以来，已有许多不同构形的蛋白质二级结构陆续被提出。
2
It was indicated that structural protein of icosahedral viruses capsid in fact take on various conformations.
二十面体病毒衣壳结构蛋白具有不同的构象。
3
When ligands bind to a specific subset of receptors, the ligands stabilize specific proteinconformations, turning on (or off) molecular switches that control diverse cellular functions.