>4ypoB (B:) observed residues (from ATOM records)
mfydddadlsiiqgrkvgvigygsqghahslslrdsgvqvrvglkqgsrsrpkveeqgld
vdtpaevakwadvvmvlapdtaqaeifagdiepnlkpgdalffghglnvhfglikppadv
avamvapkgpghlvrrqfvdgkgvpclvaveqdprgdglalalsyakaiggtragviktt
fkdetetdlfgeqtvlcggteelvkagfevmveagypaelayfevlhelklivdlmyegg
larmyysvsdtaefggylsgprvidagtkermrdilreiqdgsfvhklvadveggnkqle
elrrqnaehpievvgkklrdlmswv