Agilent AdvanceBio InstantAB Human AGP N-glycan Library (GKIB-001)

AdvanceBio InstantAB Human α-1-acid glycoprotein N-glycan Library. Represents a total pool of N-linked glycans released from human α1-acid glycoprotein and labeled with InstantAB, constituting a heterogenous mixture of core non-fucosylated bi-, tri-, and tetraantennary glycans with various degrees of sialylation (NeuAc) and some with outer arm fucose residues and lactosamine repeats, consistent with N-glycans previously reported for human α1-acid glycoprotein. The biantennary glycans can have one or two sialic acid residues. The triantennary and tetraantennary glycans can have from one to four sialic acid residues and may be substituted with fucose that result in formation of sialyl Lewis X-like structure. The sialic acid residues are found both in α(2,3) and α(2,6) linkages. The composition of the library is approximately as follows: monosialylated glycans ~1%, di-sialylated ~20%, tri-sialylated ~51% and tetrasialylated ~27%. Triantennary glycans are a major component and constitute ~44% of total glycans present in the Human α1-acid glycoprotein N-linked Glycan Library. The reducing termini are derivatized with the fluorescent dye, InstantAB.

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