Gly-Gly-Gly-PEG3-TCO contains a TCO group and a Gly-Gly-Gly peptide residue. The Fmoc-Gly-Gly-Gly peptide cleaves specifically with cathepsin B enzyme. TCO can be utilized for conjugation with tetrazine tagged biomolecules.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.