>6fxsB (B:) observed residues (from ATOM records)
trkvaigadhigfpihesivryvreageefepvyigphslervdypdyalnvarmvarge
advgilvcgsgigmsiaankvpgiraalcfdhytavmarqhndanvvclgerttgpavlr
eiimtflqtpysgedrhtqrlekikaaes