Yet another one: 

my $seq = 'ACTGACTGATGCATGCATGCATGCCGTACGTACGTACGT';

my @groups = unpack "(A3)*", $seq;

[download]

(But before you generalize this method, note that pre-5.10.0, unpack's "A" template would unpack bytes, not characters... which would make a difference when unicode is involved. This is irrelevant in this particular case, though.)

In reply to Re: split a squence by 3 letters by almut
in thread split a squence by 3 letters by Anonymous Monk

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