The Rabbit anti-GFP immunomagnetic beads, conjugated with Anti-GFP rabbit polyclonal antibody, are used for immuneprecipitation (IP) of GFP-tagged proteins expressed in vitro expression systems. For IP, the Immunomagnetic beads are added to a sample containing GFP-tagged proteins to form an Immunomagnetic Beads-protein complex. The complex is removed from the solution manually against a Magnetic separation device. The bound GFP-tagged proteins are dissociated from the Immunomagnetic beads using an Elution Buffer.