>1yb5B (B:) observed residues (from ATOM records)
klmravrvfefggpevlklrsdiavpipkdhqvlikvhacgvnpvetyirsgtysrkpll
pytpgsdvagvieavgdnasafkkgdrvftsstisggyaeyalaadhtvyklpekldfkq
gaaigipyftayralihsacvkagesvlvhgasggvglaacqiarayglkilgtagteeg
qkivlqngahevfnhrevnyidkikkyvgekgidiiiemlanvnlskdlsllshggrviv
vgsrgtieinprdtmakessiigvtlfsstkeefqqyaaalqagmeigwlkpvigsqypl
ekvaeaheniihgsgatgkmilll