Chains and heterogens:
PDB Chain Sequences:
>4urxR (R:) mhhhhhhgggenlyfqgshmteyklvvvgaggvgksaltiqliqnhfvdeydptiedsyr kqvvidgetclldildtagqeeysamrdqymrtgegflcvfainntksfedihqyreqik rvkdsddvpmvlvgnkcdlaartvesrqaqdlarsygipyietsaktrqgvedafytlvr eirqh
>4urxR (R:) hmteyklvvvgaggvgksaltiqliqnhfvdeydptiedsyrkqvvidgetclldildta gqeeysamrdqymrtgegflcvfainntksfedihqyreqikrvkdsddvpmvlvgnkcd laartvesrqaqdlarsygipyietsaktrqgvedafytlvreirqh
>4urxS (S:) meeqmrlpsadvyrfaepdseeniifeenmqpkagipiikagtviklierltyhmyadpn fvrtflttyrsfckpqellsliierfeipepepteadriaiengdqplsaelkrfrkeyi qpvqlrvlnvcrhwvehhfydferdayllqrmeefigtvrgkamkkwvesitkiiqrkki ardngpghnitfqsspptvewhisrpghietfdlltlhpieiarqltllesdlyravqps elvgsvwtkedkeinspnllkmirhttnltlwfekcivetenleervavvsriieilqvf qelnnfngvlevvsamnsspvyrldhtfeqipsrqkkileeahelsedhykkylaklrsi nppcvpffgiyltnilkteegnpevlkrhgkelinfskrrkvaeitgeiqqyqnqpyclr vesdikrffenlnpmgnsmekeftdylfnksleieprnpkplprfpkkysyplkspgvrp snprpgt
>4urxS (S:) qmrlpsadvyrfaepdseeniifeenmqpkagipiikagtviklierltyhmyadpnfvr tflttyrsfckpqellsliierfeipepelsaelkrfrkeyiqpvqlrvlnvcrhwvehh fydferdayllqrmeefigtvrgkamkkwvesitkiiqrkkiasspptvewhisrpghie tfdlltlhpieiarqltllesdlyravqpselvgsvwtkedkeinspnllkmirhttnlt lwfekcivetenleervavvsriieilqvfqelnnfngvlevvsamnsspvyrldhtfeq ipsrqkkileeahelsedhykkylaklrsinppcvpffgiyltnilkteegnpevlkrhg kelinfskrrkvaeitgeiqqyqnqpyclrvesdikrffenlnpmgnsmekeftdylfnk sleieprnpkplprfpkkysyplkspgvrpsnp