>1j91B (B:) observed residues (from ATOM records)
skarvyadvnvlrpkeywdyealtvqwgeqddyevvrkvgrgkysevfeginvnnnekci
ikilkpvkkkkikreikilqnlcggpnivklldivrdqhsktpslifeyvnntdfkvlyp
tltdydiryyiyellkaldychsqgimhrdvkphnvmidhelrklrlidwglaefyhpgk
eynvrvasryfkgpellvdlqdydysldmwslgcmfagmifrkepffyghdnhdqlvkia
kvlgtdglnvylnkyrieldpqlealvgrhsrkpwlkfmnadnqhlvspeaidfldkllr
ydhqerltaleamthpyfqqvraaens