>7X2L_2|Chain B|Nanobody 3-2A2-4|Vicugna pacos (30538) QVQLQESGGGLVQPGESLRLSCAASGSISTLNVMGWYRQAPGKQRELVAQITLDGSPEYADSVKGRFTITKDGAQSTLYLQMNNLKPEDTAVYFCKLENGGFFYYWGQGTQVTVSTHHHHHH >7X2L_1|Chain A[auth E]|Spike protein S1|Severe acute respiratory syndrome coronavirus 2 (2697049) TNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPK