Format for passing search set and exclude set to AQUA

• Lines starting with # and no keyword will be ignored.
• Columns are separated by tabs or blanks.
• Notation for chains: 1pdbC.
• If two columns used: first for search sequence, second for database protein.

# no header required
#
# ignore: 	anything after '#' 
# read:   	all 'words' (blanks are purged off)
# optional:	two columns separated by tab, 1st='Sequence', 2nd='Structure'
# 
1acf	1acf
1acf	1acfX  		
1acf	2btfP
1acf	1ppn
1acf	5pti
1lga	1lga
1lga	1arp