>6cxuA (A:) observed residues (from ATOM records)
skeyhideevgfalpnpqenlpdfyndwmfiakhlpdliesgqlrerveklnmlsidhlt
dhksqrlarlvlgcitmayvwgkghgdvrkvlprniavpycqlskklelppilvyadcvl
anwkkkdpnkpltyenmdvlfsfrdgdcskgfflvhllveiaaasaikviptvfkamqmq
erdtllkalleiasclekalqvfhqihdhvnpkaffsvlriylsgwkgnpqlsdglvyeg
fwedpkefaggsagqssvfqcfdvllgiqqtaggghaaqflqdmrrymppahrnflcsle
snpsvrefvlskgdaglreaydacvkalvslrsyhlqivtkyilipasqqpleakgtggt
dlmnflktvrstteksllkeg