Fig. 4

Identification of NDV-Nb5-HRP fusion protein expression and secretion in the HEK293T cells. a Detection of NDV-Nb5-HRP expressed in the HEK293T cells with the anti-HA mAb as the first antibody by IFA. b Detection of the HRP activity in the NDV-Nb5-HRP fusions secreted into the culture medium of HEK293T cells. c Detection of the NDV-Nb5-HRP reaction with the NDV-NP protein using indirect ELISA