Reducing Macro- and Microheterogeneity of N-Glycans Enables the Crystal Structure of the Lectin and EGF-Like Domains of Human L-Selectin To Be Solved at 1.9 Å Resolution.

Abstract excerpt

L-Selectin, a cell-adhesion receptor on the surface of most leukocytes, contains seven N-glycosylation sites. In order to obtain the crystal structure of human L-selectin, we expressed a shortened version of L-selectin comprising the C-type lectin and EGF-like domains (termed LE) and systematically analysed mutations of the three glycosylation sites (Asn22, Asn66 and Asn139) in order to reduce macroheterogeneity....

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