>4mbtB (B:) SEQRES residues
atfdilnkctytvwaaaspgggrrldsgqswtitvnpgttnariwgrtsctfdangrgkc
etgdcngllecqgygsppntlaefalnqpnnldyidislvdgfnipmdfsgcrgiqcsvd
ingqcpselkapggcnnpctvfktneycctdgpgscgpttyskffkdrcpdaysypqddk
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