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Biotin was appended on the ε-amine of the C-terminal lysine
C28H49N3O15S / 699
2-[2-(2-Prop-2-ynoxyethoxy)ethoxy]ethyl 2-acetamido-2-deoxy-β-D-galactopyranoside
β-D-Lac-PEG3-Alkyne
C13H24O10 / 340
PE035005: NeuAcα(2-6)LacNAc-PEG3-Thiol Pack Size:0.5 mg Biotin was appended on theC31H54N2O21S 822. 83 A Neu5Ac2 6LacNAc trisaccharide equipped with a free thiol through a hydrophilic PEG3 spacer. The thiol reacts with maleimides to form stable thioether conjugates or with other thiols to form disulfide bonds; it is also compatible with thiol gold chemistry for surface immobilization. Neu5Ac2 6LacNAc is a ligand for Siglecs and for influenza hemagglutinin, particularly the human adapted strains that preferentially recognize 2 6
