Is there any suggestion regarding the finding of interactors by incubating purified protein with total protein from plant,fungi by in-gel MS analysis?

I have purified proteins. The purified protein was incubated with the extracted extracellular fluid from fungi. Specific protein bound interactors were run on gel. Comparing the bands with proper control I want to identify the interactor via LS-MS or MALDI. But the problem is that I am Read more Read less