>3sa1B (B:) SEQRES residues
hhhmrvsfmvamdenrvigkdnnlpwrlpselqyvkkttmghplimgrknyeaigrplpg
rrniivtrnegyhvegcevahsveevfelckneeeififggaqiydlflpyvdklyitki
hhafegdtffpemdmtnwkevfvekgltdeknpytyyyhvyekqq