Chains and heterogens:
PDB Chain Sequences:
>1x1nA (A:) avpavgedfpidyadwlpkrdpndrrragillhptsfpgpygigdlgpqafkfldwlhla gcslwqvlplvppgkrgnedgspysgqdancgntllisleelvddgllkmeelpeplptd rvnystiseikdplitkaakrllssegelkdqlenfrrdpnisswledaayfaaidnsvn tiswydwpeplknrhlaaleevyqsekdfidifiaqqflfqrqwkkvrdyarskgisimg dmpiyvgyhsadvwankkqfllnrkgfplivsgvppdafsetgqlwgsplydwkamekdg fswwvrriqratdlfdefridhfrgfagfwavpseekiailgrwkvgpgkplfdailqav gkiniiaedlgvitedvvqlrksieapgmavlqfafgsdaenphlphnheqnqvvytgth dndtirgwwdtlpqeeksnvlkylsnieeeeisrgliegavssvariaiipmqdvlglgs dsrmnipatqfgnwswripsstsfdnldaeakklrdilatygrl
>1x1nA (A:) vpavgedfpidyadwlpkrdpndrrragillhptsfpgpygigdlgpqafkfldwlhlag cslwqvlplvppgkrgnedgspysgqdancgntllisleelvddgllkmeelpeplptdr vnystiseikdplitkaakrllssegelkdqlenfrrdpnisswledaayfaaidnsvnt iswydwpeplknrhlaaleevyqsekdfidifiaqqflfqrqwkkvrdyarskgisimgd mpiyvgyhsadvwankkqfllnrkgfplivsgvppdafsetgqlwgsplydwkamekdgf swwvrriqratdlfdefridhfrgfagfwavpseekiailgrwkvgpgkplfdailqavg kiniiaedlgvitedvvqlrksieapgmavlqfafgsdaenphlphnheqnqvvytgthd ndtirgwwdtlpqeeksnvlkylsnieeeeisrgliegavssvariaiipmqdvlglgsd srmnipatqfgnwswripsstsfdnldaeakklrdilatygrl