primer3 task check_primers can be run w/o giving a SEQUENCE_TEMPLATE to check existing primers for dimer formation etc. I have made changes to enable this behaviour in Primer3Redux. When running w/o a sequence, the primer task must be check_primers. A mock sequence of Ns and default length is created and the given primer sequences are substituted into this sequence at the beginning, middle and end so that a Bio::Seq object can be retrieved that gives the correct primer sequences and distances.
primer3 task check_primers can be run w/o giving a SEQUENCE_TEMPLATE to check existing primers for dimer formation etc. I have made changes to enable this behaviour in Primer3Redux. When running w/o a sequence, the primer task must be check_primers. A mock sequence of Ns and default length is created and the given primer sequences are substituted into this sequence at the beginning, middle and end so that a Bio::Seq object can be retrieved that gives the correct primer sequences and distances.