correct this:

my @aa= qw(A R N D C Q E G H I L K M F P S T W Y V);
my $aa= join("\t", @aa);

[download]
assign a new variable for $aa.

and this:

$ph++= 0.01;

[download]

into: 

$ph+= 0.01;

[download]

In reply to Re^5: Iso electric point calculation using perl by Anonymous Monk
in thread Iso electric point calculation using perl by yuvraj_ghaly

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