>4pc1B (B:) observed residues (from ATOM records)
tkphvnvgtighvdhgkttltaaittvlaktyggshveydtptrhyahvdcpghadyvkn
mitgaaqmdgailvvaatdgpmpqtrehillgrqvgvpyiivflnkcdmvddeellelve
mevrellsqydfpgddtpivrgsalkalegdaeweakilelagfldsyipeperaidkpf
llpiedvfsisgrgtvvtgrvergiikvgeeveivgiketqkstctgvemfrklldegra
genvgvllrgikreeiergqvlakpgtikphtkfesevyilskdeggrhtpffkgyrpqf
yfrttdvtgtielpegvemvmpgdnikmvvtlihpiamddglrfaireggrtvgagvvak
vlg