>5b3sQ (Q:) observed residues (from ATOM records) svvksedyalpsyvdrrdyplpdvahvknlsasqkalkekekaswsslsidekvelyrlk fkesfaemnrstnewktvvgaamffigftallliwekhyvygpiphtfeeewvakqtkrm ldmkvapiqgfsakwdydknewkk