Amino acid sequence: N-terminal 3x HA tag
YPYDVPDYAGYPYDVPDYAGYPYDVPDYASGRGKQGGKARAKAKTRSSRAGLQFPVGRVHRLLRKGNYSERVGAGAPVYLAA VLEYLTAEILELAGNAARDNKKTRIIPRHLQLAIRNDEELNKLLGKVTIAQGGVLPNIQAVLLPKKTESHHKAKGK