> test  ##0
GSMTVDMQEIGSTEMPYEVPTQPNATSASAGRGWFDGPSFKVPSVPTRPSGIFRRPSRIKPEFSFKEKVSELVSPAVYTFGLFVQNASESLTSDDPSDVPTQRTFKSDFQSVGSMTVDMQEIGSTEMPYEVPTQPNATSASAGRGWFDGPSFKVPSVPTRPSGIFRRPSRIKPEFSFKEKVSELVSPAVYTFGLFVQNASESLTSDDPSDVPTQRTFKSDFQSVAXXSTFDFYQRRLVTLAESPRAPSPGSMTVDMQEIGSTEMPYEVPTQPNATSASAGRGWFDGPSFKVPSVPTRPSGIFRRPSRIKPEFSFKEKVSELVSPAVYTFGLFVQNASESLTSDDPSDVPTQRTFKSDFQSV

> test2_rev ##1
DFASSGGYVLHLHREDQSCPSERRRAFSRLRFGPS

>BSA2 ##2
IALSRPNVEVVALNDPFITNDYAAYMFKEWATYTCVLGFHVYVPVR

>BSA3 ##3
RPGADSDIGGFGGLFDLAQAGFRAXXXSTFDFYQRRLVTLAESPRAPSX

>BSA333 ##4
AASTFDFYQRRLVTLAESPRAPSA

>BSA4 P02769 ##5
EDQSCPSERRRAFSRLRXXXX

>Thyroglo P01267  ##6
AAAAAEWATYTCVLGFHVYVPVR

>BSA4_rev P02769 
EDQSCPSERRRAFSRLRXXXX

>Thyroglo_rev P01267  
AAAAAEWATYTCVLGFHVYVPVR

>revonly_rev 
DFIANGER

>ambiguous AAs
XAAAARAAAABAAARAAAAZAAAAR