>6f4jA (A:) observed residues (from ATOM records)
mvkltpelinqsmqyinpvrereldlrgykipqienlgatldqfdtidlsdndlrkldnl
phlprlktlllnnnrilrisegleeavpnlgsiiltgnnlqelsdleplvgftkletisl
linpvstkpnyreymaykfpqlrlldfrkikqkdrqaaqeffrtkqgkdvlkeis