Low density lipoproteins were biotinylated via free amino groups using carbodiimide-activated biotin or D-biotin-N-hydroxysuccinimide ester. The receptor binding activity of the biotinylated LDL was determined by their ability to displace 125I-labeled LDL from the rat hepatic LDL receptor in the liposome filtration assay. LDL biotinylated with either of the two reagents was able to co... https://www.alarecre.com/Virescent-Harmony-Galaxy-A14-5G-Clear-Case-p106336/