>7nxcB (B:) SEQRES residues etghhhhhhtnlcpfgevfnatrfasvyawnrkrisncvadysvlynsasfstfkcygvs ptklndlcftnvyadsfvirgdevrqiapgqtgtiadynyklpddftgcviawnsnnlds kvggnynylyrlfrksnlkpferdisteiyqagstpcngvkgfncyfplqsygfqptygv gyqpyrvvvlsfellhapatvcgkk