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Sabine C. Mueller, Stefan Nickels, D. Stoeckel, A.K. Dehof, H.P. Lenhof, Andreas Hildebrandt (Intel Visual Computing Institute, Center for Bioinformatics, Saarbrücken, Saarland, Johannes-Gutenberg Universität, Mainz)Molecular visualization and editing functionality are crucial components of application scenarios in structural bioinformatics. Typically, the graphical interfaces to molecular modeling packages are aimed at domain experts and require an extensive learning period. In several scenarios, such as teaching, presentations and demonstrations, it would be highly preferable to have an intuitive environment for showcasing molecular functionality required for the demonstration. Here, we present our new presentation framework PresentaBALL, which uses established web technology standards to provide a freely configurable browser-based interface into the extensive modeling and visualization capabilities of the Biochemical Algorithms Library BALL. BALL is a versatile C++ class library for structural bioinformatics. PresentaBALL is a novel HTML based extension embedded in the graphical front-end BALLView, which provides complete access to the Python scripting interface of BALL and thus enables interaction with the molecular scene in BALLView. Hence, users are able to easily setup academic tutorials, demonstrations or scientific presentations with 3D structure content and interactive workflows.