>4ynyB (B:) observed residues (from ATOM records)
efvltqpnsvstnlgstvklsckrstgnigsnyvnwyqqhegrspttmiyrddkrpdgvp
drfsgsidrssnsalltinnvqtedeadyfchsyssgivfgggtkltvlgqpkstptltv
fppsteelqgnkatlvclisdfypsdvevawkangapisqgvdtanptkqgnkyiassfl
rltaeqwrsrnsftcqvthegntvekslsp