Temporal data - data in biological databases has been accumulated over time. The quality of that data at different points in time has not been well determined. Rather scientists tend to treat the data equally. By looking at the obsolete entries from the PDB we hope to learn more about the temporal characteristics of this data and the history of this database. Collaborative visualization - It is desirable to have two or more scientists sharing the same visual scene while being remote from each other and yet being able to collaborate.
Apoptosis is a type of cell death which is genetically controlled.
Using the same tools developed for protein families we propose a Web accessible resource which is a useful research tool to those interested in this fast expanding field. Multimedia and Java-based tools are staring to appear for use in the development and maintenance of courseware. How to make intelligent queries of this information is of increasing importance.