This server predicts secondary structure of protein from the amino acid sequence. In this server, Chou & Fasman algorithm has been implemented.

Reference:
Peter Y. Chou, and Gerald D. Fasman. Prediction of protein conformation. Biochemistry. 1974 Jan; 13(2), pp 222–245.
Peter Y. Chou, and Gerald D. Fasman. Conformational parameters for amino acids in helical, β-sheet, and random coil regions calculated from proteins. Biochemistry. 1974 Jan; 13(2): pp 211–222.