This is the website of Bioinformatics. Below you can find some information related to this subject. First I put 5 links which are very famous among everyone who ever tried to use computer for the sake of biological science!
Bioinformatics course at University of Stavanger provides wider insight into subcellar protein targeting prediction. This is a really important topic of protein research. Thus, there are not only few tools available, created to make the prediction easier and faster. If you are interested, you can find them by following the links given on this website.
If you are interested in 3D protein view and to work with the structure of protein, UCSF Chimera may be a good choice to start with. This tool is easy to learn and provides a lot of useful options, like high-quality images and animations which you can generate and download. Protein structure examination and structure similarity comparison are other examples of what you can do with Chimera software.