>1yb5A (A:) observed residues (from ATOM records)
klmravrvfefggpevlklrsdiavpipkdhqvlikvhacgvnpvetyirsgtysrkpll
pytpgsdvagvieavgdnasafkkgdrvftsstisggyaeyalaadhtvyklpekldfkq
gaaigipyftayralihsacvkagesvlvhgasggvglaacqiarayglkilgtagteeg
qkivlqngahevfnhrevnyidkikkyvgekgidiiiemlanvnlskdlsllshggrviv
vgsrgtieinprdtmakessiigvtlfsstkeefqqyaaalqagmeigwlkpvigsqypl
ekvaeaheniihgsgatgkmilll