[Bioperl-l] about tblastn and strand

[Dimitar Kenanov]

Hi guys,
i have a simple question. How exactly is defined on which strand is 
located a certain HSP in tblastn? I know it is used the strand function 
but i would like to know how is implemented. I ask cos here i made a 
perl script using bioperl but other people want to implement it in Java.

In the output of tblastn there is no strand string only frame+ or 
frame-. Do you just take the + or - to determine on which strand is the HSP?

Thank you for your time and help.

Dimitar