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Input format

Input consists of the amino acid sequence in FASTA or RAW format and the following secondary structure file input:

Secondary structure file format
Contains locations of secondary structure elements, i.e. α-helices and β-strands, in the protein sequence. The file first contains number of α-helices, followed by beginnings and ends of α-helices. This is followed by the number of β-strands, and the beginnings and ends of the β-strands. A sample secondary structure file can be found here. Please note that the commented parts including and after the "#" symbol should not be a part of the input file.

Output format

Single file with β-sheet topology predictions, providing contacts and orientation (antiparallel/parallel) between β-strands.