>3s1cA (A:) observed residues (from ATOM records)
pwpaslaalaldgklrtdsnataaastdfgnitsalpaavlypsstadlvallsaanstp
gwpytiafrgrghslmgqafapggvvvnmaslgdaaapprinvsadgryvdaggeqvwid
vlraslargvaprswtdylyltvggtlsnagisgqafrhgpqisnvlemdvitghgemvt
cskqlnadlfdavlgglgqfgvitrariavepapararwvrlvytdfaafsadqerltap
rpasfgpmsyvegsvfvnqslatdlantgfftdadvarivalagernattvysieatlny
dnataaaaavdqelasvlgtlsyvegfafqrdvayaafldrvhgeevalnklglwrvphp
wlnmfvprsriadfdrgvfkgilqgtdivgplivyplnksmwddgmsaatpsedvfyavs
llfssvapndlarlqeqnrrilrfcdlagiqyktylarhtdrsdwvrhfgaakwnrfvem
knkydpkrllspgqdifn