I'm trying the loop fitting for the first time and keep getting this error: 


Reading in sequence probability info and matching to input PDB

List of segments read from input PDB file:
Segment  0  Start:  225  End: 380  ChainID: 'A'
NO MATCH

What should be in the sequence file? it is fasta format?it is the entire sequence, or just the loop? I've played with different combinations and keep getting the same error. 

Best regards,

Kendall Nettles