Pepsin, one of the principal digestion enzymes, breaks down proteins in to smaller peptides. It is most efficient in cleaving the peptide bonds between hydrophobic and aromatic amino acids such as phenylalanine, tryptophan and tyrosine. Pepsin readily cleaves immunoglobulin G (IgG) molecules, generating F(ab’)2 fragments and small Fc peptide fragments. The smaller Fc fragments can be easily removed via gel filtration while the F(ab’)2 fragments can then be purified from any remaining, undigested IgG. The F(ab’)2 fragments are highly useful for research interests, being able to penetrate tissue better than standard IgG antibodies and facilitate better antigen recognition while avoiding unspecific binding to Fc receptors.
Immobilized Pepsin Agarose Resin is an efficient method for producing F(ab’)2 fragments from IgG molecules for antibody mimetic. Undigested IgG can be quickly removed with our Protein A Agarose Resin (GoldBio Catalog # P-400). Fc fragments can also be removed using a gel filtration system.
Resin: 6% Cross-linkedAgarose
Shipping/Handling: Shipped at ambient temperature. Upon receipt, store at 4°C, do NOT freeze.
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