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Fig. 2 | Virology Journal

Fig. 2

From: Roles of the highly conserved amino acids in the second receptor binding site of the Newcastle disease virus HN protein

Fig. 2

Qualitative detection results of cell surface expression efficiency of mutant HN proteins. Monolayers of BHK-21 cells transfected with wt or mutant HN genes were incubated with a mixture of two monoclonal antibodies specific for the NDV HN protein and FITC-labelled goat anti-rabbit IgG. (Magnification: 200 × ). a The IIFA results of site-directed mutants. b The IIFA results of fragment deletion or replacement mutants

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