Features description.

For every feature, proteins are divided into a definite number of bins in terms of the different feature values. Then we use number(from 1 to 113) to represent different bins for different features. For every feature, the biggest number represents no feature record for one protein, and the other numbers correspond to different bins separately. For example, for feature Mit1, 1 represents no More than one N-terminal residue is cut for one protein, 2 represents More than one N-terminal residue is cut for one protein, and 3 denotes no feature record for this protein.