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Bead size ~ 90 μm (cross-linked 4% agarose beads)
Equilibrate beads4. Vortex Myc-Trap®_A beads and pipette 25 μL bead slurry into 500 μL ice-cold dilution buffer. Centrifuge at 2.500x g for 2 min at +4 °C. Discard supernatant and repeat wash twice.
Bind proteins5. Add diluted supernatant (step 3) to equilibrated Myc-Trap®_A beads (step 4). If required, save 50 μL of diluted lysate for immunoblot analysis. Tumble end-overend for 1 hour at 4 °C.6. Centrifuge at 2.500x g for 2 min at +4 °C. If required, save 50 μL supernatant for immunoblot analysis. Discard remaining supernatant.Wash beads7. Resuspend Myc-Trap®_A beads in 500 μL ice-cold dilution buffer. Centrifuge at 2.500x g for 2 min at +4 °C. Discard supernatant and repeat wash twice.optional: Increase salt concentration in the second washing step up to 500 mM.Elute proteins8. Resuspend Myc-Trap®_A beads in 100 μL 2x SDS-sample buffer.9. Boil resuspended Myc-Trap®_A beads for 10 min at 95 °C to dissociate immunocomplexes from Myc-Trap®_A beads. Myc-Trap®_A beads can be collected by centrifugation at 2.500x g for 2 min at 4 °C and SDS-PAGE is performed with the supernatant.10. Optional instead of steps 8 and 9: Reconstitute Myc peptide (code yp-1) in water to a final concentration of 2 mg/ ml. Add ~25 μg Myc peptide in 50-100 μL in dilution buffer to Myc-Trap®_A beads. Mix for 15 min at RT. Centrifuge at 2500xg for 2 min and carefully transfer supernatant to a new tube. To increase elution efficiency this step can be repeated.Note: Use our spin column protocol for easy elution