Chains and heterogens:
PDB Chain Sequences:
>1nvxQ (Q:) mteyklvvvgaggvgksaltiqliqnhfvdeydptiedsyrkqvvidgetclldildtgg qeeysamrdqymrtgegflcvfainntksfedihqyreqikrvkdsddvpmvlvgnkcdl aartvesrqaqdlarsygipyietsaktrqgvedafytlvreirqh
>1nvxR (R:) mteyklvvvgaggvgksaltiqliqnhfvdeydptiedsyrkqvvidgetclldildtgg qeeysamrdqymrtgegflcvfainntksfedihqyreqikrvkdsddvpmvlvgnkcdl aartvesrqaqdlarsygipyietsaktrqgvedafytlvreirqh
>1nvxS (S:) qmrlpsadvyrfaepdseeniifeenmqpkagipiikagtviklierltyhmyadpnfvr tflttyrsfckpqellsliierfeipepepteadriaiengdqplsaelkrfrkeyiqpv qlrvlnvcrhwvehhfydferdayllqrmeefigtvrgkamkkwvesitkiiqrkkiard ngpghnitfqsspptvewhisrpghietfdlltlhpieiarqltllesdlyravqpselv gsvwtkedkeinspnllkmirhttnltlwfekcivetenleervavvsriieilqvfqel nnfngvlevvsamnsspvyrldhtfeqipsrqkkileeahelsedhykkylaklrsinpp cvpffgiyltnilkteegnpevlkrhgkelinfskrrkvaeitgeiqqyqnqpyclrves dikrffenlnpmgnsmekeftdylfnksleieprnpkplprfpkkysyplkspgvrpsnp r
>1nvxS (S:) qmrlpsadvyrfaepdseeniifeegipiikagtviklierltyhmyadpnfvrtfltty rsfckpqellsliierfeipepelkrfrkeyiqpvqlrvlnvcrhwvehhfydferdayl lqrmeefigtvrgkamkkwvesitkiiqrkkiahnitfqsspptvewhisrpghietfdl ltlhpieiarqltllesdlyravqpselvgsvwtkedkeinspnllkmirhttnltlwfe kcivetenleervavvsriieilqvfqelnnfngvlevvsamnsspvyrldhtfeqipsr qkkileeahelsedhykkylaklrsinppcvpffgiyltnilkteegnpevlkrhgkeli nfskrrkvaeitgeiqqyqnqpyclrvesdikrffenlnpmgnsmekeftdylfnkslei eprnpkplprfpkkysyplkspgvrpsn