Membrane Protein Explorer (MPEx), a tool for exploring the topology and other features of membrane proteins by means of hydropathy plots based upon thermodynamic principles. Click on the Java applet button at right to start MPEx. For instructions, see Features at a Glance and Brief Instructions for MPEx below, or the full documentation. Current version: 3.0. MPEx can also be installed on your computer as a Web Start application. A useful adjunct to MPEx is MPtopo, a database of Membrane Protein topology accessible from MPEx.
（Membrane Protein Explorer）研究膜蛋白拓扑学结构和其它特性的JAVA软件。软件可以很方便地使用膜蛋白拓扑结构数据库MPtopo,（a
database of Membrane Protein topology）。需要JAVA运行环境。软件已经不提供单机版，可直接到该网站点击运行。