>2cwkB (B:) observed residues (from ATOM records)
etertlviikpdavvrgligeiisrfekkglkivgmkmiwidrelaekhyeehrekpffk
alidyitktpvvvmvlegryavevvrkmagatdpkdaapgtirgdfglevsdaicnviha
sdskesaereislffkpeelfeypraadwfyk