Chains and heterogens:
PDB Chain Sequences:
>3s1dA (A:) laagtpalgddrgrpwpaslaalaldgklrtdsnataaastdfgnitsalpaavlypsst adlvallsaanstpgwpytiafrgrghslmgqafapggvvvnmaslgdaaapprinvsad gryvdaggeqvwidvlraslargvaprswtdylyltvggtlsnagisgqafrhgpqisnv lemdvitghgemvtcskqlnadlfdavlgglgqfgvitrariavepapararwvrlvytd faafsadqerltaprpggggasfgpmsyvegsvfvnqslatdlantgfftdadvarival agernattvysieatlnydnataaaaavdqelasvlgtlsyvegfafqrdvayaafldrv hgsevalnklglwrvphpwlnmfvprsriadfdrgvfkgilqgtdivgplivyplnksmw ddgmsaatpsedvfyavsllfssvapndlarlqeqnrrilrfcdlagiqyktylarhtdr sdwvrhfgaakwnrfvemknkydpkrllspgqdifn
>3s1dA (A:) pwpaslaalaldgklrtdsnataaastdfgnitsalpaavlypsstadlvallsaanstp gwpytiafrgrghslmgqafapggvvvnmaslgdaaapprinvsadgryvdaggeqvwid vlraslargvaprswtdylyltvggtlsnagisgqafrhgpqisnvlemdvitghgemvt cskqlnadlfdavlgglgqfgvitrariavepapararwvrlvytdfaafsadqerltap rpasfgpmsyvegsvfvnqslatdlantgfftdadvarivalagernattvysieatlny dnataaaaavdqelasvlgtlsyvegfafqrdvayaafldrvhgsevalnklglwrvphp wlnmfvprsriadfdrgvfkgilqgtdivgplivyplnksmwddgmsaatpsedvfyavs llfssvapndlarlqeqnrrilrfcdlagiqyktylarhtdrsdwvrhfgaakwnrfvem knkydpkrllspgqdifn