A1: Portal protein B1: Portal protein C1: Portal protein D1: Portal protein E1: Portal protein F1: Portal protein G1: Portal protein H1: Portal protein I1: Portal protein J1: Portal protein K1: Portal protein L1: Portal protein A2: Head completion protein, gp1 B2: Head completion protein, gp1 C2: Head completion protein, gp1 D2: Head completion protein, gp1 E2: Head completion protein, gp1 F2: Head completion protein, gp1 G2: Head completion protein, gp1 H2: Head completion protein, gp1 I2: Head completion protein, gp1 J2: Head completion protein, gp1 K2: Head completion protein, gp1 L2: Head completion protein, gp1