Why don't you use one of the BioPerl modules for reading that aminofastawhateveritis?

Then you don't need to build a regex to parse the mystery $line7 variable which probably only contains one single line so thats all that is returned because the other lines aren't in the variable ...

:)

In reply to Re: Help to build a REGEXP (BioPerl) by Anonymous Monk
in thread Help to build a REGEXP by Anonymous Monk

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