Chains and heterogens:
PDB Chain Sequences:
>2qknA (A:) laagtpalgddrgrpwpaslaalaldgklrtdsnataaastdfgnitsalpaavlypsst adlvallsaanstpgwpytiafrgrghslmgqafapggvvvnmaslgdaaapprinvsad gryvdaggeqvwidvlraslargvaprswtdylyltvggtlsnagisgqafrhgpqisnv lemdvitghgemvtcskqlnadlfdavlgglgqfgvitrariavepapararwvrlvytd faafsadqerltaprpggggasfgpmsyvegsvfvnqslatdlantgfftdadvarival agernattvysieatlnydnataaaaavdqelasvlgtlsyvegfafqrdvayaafldrv hgeevalnklglwrvphpwlnmfvprsriadfdrgvfkgilqgtdivgplivyplnksmw ddgmsaatpsedvfyavsllfssvapndlarlqeqnrrilrfcdlagiqyktylarhtdr sdwvrhfgaakwnrfvemknkydpkrllspgqdifn
>2qknA (A:) pwpaslaalaldgklrtdsnataaastdfgnitsalpaavlypsstadlvallsaanstp gwpytiafrgrghslmgqafapggvvvnmaslgdaaapprinvsadgryvdaggeqvwid vlraslargvaprswtdylyltvggtlsnagisgqafrhgpqisnvlemdvitghgemvt cskqlnadlfdavlgglgqfgvitrariavepapararwvrlvytdfaafsadqerltap rsfgpmsyvegsvfvnqslatdlantgfftdadvarivalagernattvysieatlnydn ataaaaavdqelasvlgtlsyvegfafqrdvayaafldrvhgeevalnklglwrvphpwl nmfvprsriadfdrgvfkgilqgtdivgplivyplnksmwddgmsaatpsedvfyavsll fssvapndlarlqeqnrrilrfcdlagiqyktylarhtdrsdwvrhfgaakwnrfvemkn kydpkrllspgqdifn