>4pc6B (B:) observed residues (from ATOM records)
tkphvnvgtighvdhgkttltaaittvlaktyggkargishveydtptrhyahvdcpgha
dyvknmitgaaqmdgailvvaatdgpmpqtrehillgrqvgvpyiivflnkcdmvddeel
lelvemevrellsqydfpgddtpivrgsalkalegdaeweakilelagfldsyipepera
idkpfllpiedvfsisgrgtvvtgrvergiikvgeeveivgiketqkstctgvemfrkll
degragenvgvllrgikreeiergqvlakpgtikphtkfesevyilskdeggrhtpffkg
yrpqfyfrttdvtgtielpegvemvmpgdnikmvvtlihpiamddglrfaireggrtvga
gvvakvlg