>3s13A (A:) observed residues (from ATOM records)
lekthngklcdldgvkplilrdcsvagwllgnpmcdefinvpewsyivekaspandlcyp
gdfndyeelkhllsrinhfekiqiipksswsnheassgvssacpylgkssffrnvvwlik
knsayptikrsynntnqedllvlwgihhpndaaeqtklyqnpttyisvgtstlnqrlvpk
iatrskvngqsgrmeffwtilkpndainfesngnfiapeyaykivkkgdsaimkseleyg
ncntkcqtpmgainssmpfhnihpltigecpkyvksn