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Brief Communication

Nature Methods 6, 809–811 (1 November 2009) | doi:10.1038/nmeth.1392

Enrichment of glycopeptides for glycan structure and attachment site identification

Jonas Nilsson , Ulla R|[uuml]|etschi , Adnan Halim , Camilla Hesse , Elisabet Carlsohn , Gunnar Brinkmalm & G|[ouml]|ran Larson

We present a method to enrich for glycoproteins from proteomic samples. Sialylated glycoproteins were selectively periodate-oxidized, captured on hydrazide beads, trypsinized and released by acid hydrolysis of sialic acid glycosidic bonds.