L&S

Hi juexin, Recemtly I read your code file convert_dataset.py and find the default value of pdb_end is set to 56, how to understand this setting, cause in "read_feature_MD_file_slidingwindow function" it...

In data_transforms.py, the function make_msa_feat make protein's target_feat, and add has_beak is cat to target_feat, why? if i only want get the (N,21), can i get ride of first columns...