>1p4aA (A:) observed residues (from ATOM records)
kfrrsgrlvdltnyllthphelipltffseryesakssisedltiikqtfeqqgigtllt
vpgaaggvkyipkmkqaeaeefvqtlgqslanperilpggyvyltdilgkpsvlskvgkl
fasvfaereidvvmtvatkgiplayaaasylnvpvvivrkdstvsinyvsgssnriqtms
lakrsmktgsnvliiddfmkaggtingminlldefnanvagigvlveaegvderlvdeym
slltlstinmkeksieiqngnflrffkdn