SDS-PAGE of bat LZHP2 P[3], human HCR3A, 12,638, M2-102 P[3], dog RV198-95 P[3], bat P[3] LZHP2 C189Y, human HCR3A Y189C, human M2-102 Y189C VP8* proteins. The molecular weight of GST-VP8* protein is ~ 52 kDa. The 26 kDa band indicates the free GST protein. The red arrow refers to the protein of interest.