>3sa1A (A:) SEQRES residues
hhhmrvsfmvamdenrvigkdnnlpwrlpselqyvkkttmghplimgrknyeaigrplpg
rrniivtrnegyhvegcevahsveevfelckneeeififggaqiydlflpyvdklyitki
hhafegdtffpemdmtnwkevfvekgltdeknpytyyyhvyekqq