The SNAP-Capture Magnetic Beads are used to selectively immobilize and magnetically separate a SNAP-tag® fusion protein from solution using magnetic agarose beads

These beads show a low non-specific absorption of proteins from a complex lysate, making them suitable for pull down applications. The SNAP-Capture Magnetic Beads are prepared by the coupling of SNAP-tag substrate benzylguanine with highly stable 75-150 µm superparamagnetic particles. Two ml of SNAP-Capture Magnetic Beads is sufficient to perform 25 immobilization assays using 80 µl of bead suspension per assay.