I am attempting to immunoprecipitate an insect protein using rabbit antibodies.

I use M-280 sheep-anti-rabbyt Dynabeads for this purpose.

I would like to elute the protein in a purified form, but the washing buffer recommended by life technologies contains BSA (to reduce non-specific binding).

As a consequence the elute always contains strong BSA bands hiding my desired protein band in Coomassie stains.

What buffer could I use to wash the beads prior to elution with the goal of removing this excessive BSA?

I see that for protein G Dynabeads a PBST buffer can be used.

Is this compatible with my goal or might is cause elution of my target protein?

Thanks for your advice.