SEM（对称等效分子）：一个基于网络的图形用户界面，用于生成和可视化大分子。
SEM (Symmetry Equivalent Molecules): A web-based GUI to generate and visualize the macromolecules.
作者信息
Hussain A S Z, Kumar Ch Kiran, Rajesh C K, Sheik S S, Sekar K
机构信息
Bioinformatics Centre, Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore, 560 012, India.
出版信息
Nucleic Acids Res. 2003 Jul 1;31(13):3356-8. doi: 10.1093/nar/gkg587.
SEM, Symmetry Equivalent Molecules, is a web-based graphical user interface to generate and visualize the symmetry equivalent molecules (proteins and nucleic acids). In addition, the program allows the users to save the three-dimensional atomic coordinates of the symmetry equivalent molecules in the local machine. The widely recognized graphics program RasMol has been deployed to visualize the reference (input atomic coordinates) and the symmetry equivalent molecules. This program is written using CGI/Perl scripts and has been interfaced with all the three-dimensional structures (solved using X-ray crystallography) available in the Protein Data Bank. The program, SEM, can be accessed over the World Wide Web interface at http://dicsoft2.physics.iisc.ernet.in/sem/ or http://144.16.71.11/sem/.
SEM（对称等效分子）是一个基于网络的图形用户界面，用于生成和可视化对称等效分子（蛋白质和核酸）。此外，该程序允许用户在本地机器上保存对称等效分子的三维原子坐标。广泛认可的图形程序RasMol已被用于可视化参考（输入原子坐标）和对称等效分子。该程序使用CGI/Perl脚本编写，并已与蛋白质数据库中所有可用的三维结构（通过X射线晶体学解析）进行了接口连接。程序SEM可通过万维网界面访问，网址为http://dicsoft2.physics.iisc.ernet.in/sem/ 或http://144.16.71.11/sem/ 。
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