>1w73D (D:) observed residues (from ATOM records)
mntealqskffsplqkamlppnsfqgkvafitgggtglgkgmttllsslgaqcviasrkm
dvlkataeqissqtgnkvhaiqcdvrdpdmvqntvselikvaghpnivinnaagnfispt
erlspnawktitdivlngtafvtleigkqlikaqkgaaflsittiyaetgsgfvvpsasa
kagveamskslaaewgkygmrfnviqpgpiktkemigripcgrlgtveelanlaaflcsd
yaswingavikfdggeevlisgefndlrkvtkeqwdtiee