Purification and characterization of a 200[emsp4 ]kDa fructosyllysine-specific binding protein from cell membranes of U937 cells

1 January 2000

journal article
Published by Springer Nature in Glycoconjugate Journal

Vol. 17 (10) , 713-716
https://doi.org/10.1023/a:1011074705615

Abstract

Amadori-modified proteins are bound by macrophages and monocytes via fructosyllysine-specific receptors. Detergent extracts from U937 cell membranes were used to purify the binding proteins by affinity purification on glycated polylysine coated magnetic beads followed by SDS-PAGE. Two proteins of 200 and 100[emsp4 ]kDa were isolated. MS-analysis of the 200[emsp4 ]kDa protein showed high homologies with cellular myosin heavy chain, type A. Both fructosyllysine specific binding proteins, cellular myosin heavy chain and nucleolin, are glycosylated.

Keywords

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