According to wikipedia,

There should be no space between the ">" and the first letter of the identifier

whereas your match string requires a \t.

It also uses unnecessary capturing parens.

Try this: 

  if ($sequence =~/^>VILMFWCA/){
     ...

[download]
Or paste a small relevant sample of your data.

        The best defense against logic is ignorance.

In reply to Re: Where am I going wrong? by NetWallah
in thread Where am I going wrong? by lairel

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