AN ALGORITHM TO FIND CHANNELS AND CAVITIES WITHIN PROTEIN CRYSTALS

We have written a package called CHANNEL for determining and analyzing the channels and cavities within protein crystal. By using CHANNEL, t he intermolecular space within a crystal lattice can be divided into c losed cavities and channels. This package is certainly useful in deter mining the channel topological structure and quantitative characterist ics. The package allows also the volume, and maximal and minimal areas of channel along a required direction to be calculated.