DBCO-PEG4-GGFG-Dxd represents a tetrapeptide linker-payload conjugate that may be used in the creation of antibody-drug conjugates (ADCs). The DBCO enables copper-free click chemistry with azides. The amino acid linker is a cleavable linker that may be useful for drug delivery. The PEG4 chain bolsters the hydrophilicity of the molecule.
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