NKp44-Ig, NKp46-Ig, Ncr1-Ig, NKp30-Ig, KIR2DL1-Ig and KIR2DS4-Ig (2μg) were run on 10% SDS-PAGE gels in reducing conditions and blotted with 0.4μg/ml of biotinylated HA-Ig or with biotinylated anti-human IgG (0.1μg/ml) and then incubated with Avidin-HRP (Bio Legend). For NA treatment, NKp44-Ig and NKp46-Ig fusion protein were incubated with NA beads (Sigma) at a ratio of 3.5μl NA beads for 1μg fusion protein and were treated or not with 25ul oseltamivir carboxylate (10ug-10mg/ml). Samples (4μg) were run on 10% SDS-PAGE gels and blotted with 20 μg/ml of biotinylated SNA lectin (Vector laboratories) or with 0.4μg/ml of biotinylated HA-Ig and then incubated for 30 minutes with Avidin-HRP (Bio Legend).
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