Input Form must be:

 
 
 
Cysteine number Sequence position of the cysteine in the original sequence Cysteine environment
This must consit of 2 neighbours on the left and 2 on the right.
If  some terminus are not present, you must use the simbol zero 0

 
Exclusion table (optional) => The list of each pair to be excluded.Each line must start with 'Exclude' (or 'E') and followed by the two numbers that are excluded (of course also the symmetric is automatically excluded)  Similarly Known (K) indicates a known bridge


Here an example:
 

1   2   0ECER
84   RRCND
3 134   SPCEV
4 148   RNCEL
5 354   NTCSN
6 360   YVCEH
7 425   TYCDV
8 437   TLC00

Exclude 1 2
Known 1 7
E 6 8
E 7 8
K 3 5