PHI-DAC: protein homology database through dihedral angle conservation. - Noa Maatuk; Yitav Glantz-Gashai; Maya Rotman; Meirav Baydany; Gennadiy Fonar; Amir Shechvitz; Karin Shemer; Aviva Peleg; Eli Reuveni; Abraham O. Samson (Bioinform., 2015)