>1sz0B (B:) observed residues (from ATOM records)
aefpelcsytweavdtknnmlykinicgnmgvaqcgpssavcmhdlktdsfhsvgdsllk
tasrsllefnttvnckkiqssitflcgktlgtpefvtatdcvhyfewrttaackknifka
nkevpcyafdrelkkhdlnpliktsgaylvddsdpdtslfinvcrdievlrasspqvrvc
ptgaaaclvrgdrafdvgrpqeglklvsndrlvlsyvkpdfcdghspavtitfvcpserr
egtipkltaksncrfeiewvteyachrdylesrscslssaqhdvavdlqplsrvasdslf
ytseadeytyylsicggsqapicnkkdaavcqvkkadstqvkvagrpqnltlrysdgdlt
liyfggeecssgfqrmsvinfecnqtagnngrgapvftgevdctyfftwdtkyacv