Conjugation of Peptide to Carrier Proteins via m-Maleimidobenzoyl-N-Hydroxysuccinimide Ester (MBS)
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m-Maleimidobenzoyl-N-hydroxysuccinimide ester (MBS) is a heterobifunctional agent that links a thiol group to an amino group at neutral pH. For peptide conjugation, the peptide usually provides the thiol group in the form of a cysteine residue, whereas the carrier provides amino groups in the form of lysine residues. The reaction proceeds in two steps. First the carrier is activated by reaction of its amino group with the succinimide moiety. Then the thiol group on the peptide reacts with the maleimide moiety of the activated carrier.
KeywordsThiol Group Keyhole Limpet Hemocyanin Peptide Conjugation Cysteine Thiol Overnight Dialysis
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