Pierce Fab Micro Preparation Kit
from
Thermo Scientific Pierce Protein Research Products
Description
The Fab Preparation Kits provide for simple generation and purification of antibody Fab fragments from whole IgG. The kits use papain, a nonspecific thiol-endopeptidase, to enzymatically cleave whole IgG just above the hinge region to create two separate Fab fragments and one Fc fragment per antibody molecule. Because the papain protease is supplied in immobilized form as beaded agarose resin, the digestion reaction is easily stopped by removing the resin from the IgG solution; the result is digest products that are enzyme-free.
The antibody digestion reaction is performed in convenient disposable spin columns that allow efficient removal of the immobilized protease and maximum recovery of the IgG fragments. Also included in the kits are Thermo Scientific NAb Protein A Spin columns and buffers to efficiently purify the resulting fragments. Protein A binds the Fc fragments and undigested IgG, allowing the pure Fab fragments to be recovered in the flow-through fraction. The kits also include Thermo Scientific Zeba Desalting Spin Columns for preparing the IgG sample quickly without dilution instead of utilizing time-consuming dialysis steps.
These Fab Preparation Kits are suitable for human, rabbit, mouse and other species and subclasses of IgG. For best results with mouse IgG1, use the ficin-based kit,