>5l69R (R:) observed residues (from ATOM records)
drgvstfspegrlfqveysleaiklgstaigiatkegvvlgvekratspllesdsiekiv
eidrhigcamsgltadarsmiehartaavthnlyydedinvesltqsvcdlalrfgelms
rpfgvalliaghdaddgyqlfhaepsgtfyrynakaigsgsegaqaellnewhssltlke
aellvlkilkqvmeekldennaqlscitkqdgfkiydnektaelikelkekeaae