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Recombinant Bat coronavirus HKU3 Spike glycoprotein (310-514 aa) was expressed in Baculovirus with a 6xHis-tag at the C-terminus. The biological activity was determined by its binding ability in a functional ELISA. This product can be used in ELISA, WB, IP.
Spike protein S1 attaches the virion to the cell membrane by interacting with host receptor, initiating the infection. Spike protein S2 mediates fusion of the virion and cellular membranes by acting as a class I viral fusion protein.