泛素是一種小型的調節型蛋白質，它在所有的生物組織中都可以發
現到它的存在。因此我們從蛋白質銀行 (protein data bank)找出泛
素的真實數據，然後利用視覺分子模擬軟體(Visual Molecular
Dynamics) 看見其分子結構，還可以看到它溶於水中的情形。最後，
我們可以利用 Steered Molecular Dynamics 去了解泛素在生物體中
有可能的結構變化。

Ubiquitin is a small regulatory protein that has been found in almost all tissues
(ubiquitously) of eukaryotic organisms [19]. The real data of ubquitin is obtained
from the protein data bank (PDB). Then, the protein is simulated by the software
Visual Molecular Dynamics (VMD). We can see the molecular structure and the
protein solvated in water. We can study the dynamical properties of the protein by
using the software Steered Molecular Dynamics.

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