>2cnwA (A:) observed residues (from ATOM records)
qlsarlqeaigrlrgrgriteedlkatlreirralmdadvnlevardfvervreealgkq
vlesltpaevilatvyealkealggearlpvlkdrnlwflvglqgsgktttaaklalyyk
gkgrrpllvaadtqrpaareqlrllgekvgvpvlevmdgespesirrrveekarleardl
ilvdtagrlqideplmgelarlkevlgpdevllvldamtgqealsvarafdekvgvtglv
ltkldgdarggaalsarhvtgkpiyfagvsekpeglepfyperlagrilg