Chains and heterogens:
PDB Chain Sequences:
>7avvA (A:) geeqmrlpsadvyrfaepdseeniifeenmqpkagipiikagtviklierltyhmyadpn fvrtflttyrsfckpqellsliierfeipepepteadriaiengdqplsaelkrfrkeyi qpvqlrvlnvcrhwvehhfydferdayllqrmeefigtvrgkamkkwvesitkiiqrkki ardngpghnitfqsspptvewhisrpghietfdlltlhpieiarqltllesdlyravqps elvgsvwtkedkeinspnllkmirhttnltlwfekcivetenleervavvsriieilqvf qelnnfngvlevvsamnsspvyrldhtfeqipsrqkkileeahelsedhykkylaklrsi nppcvpffgiyltnilkteegnpevlkrhgkelinfskrrkvaeitgeiqqyqnqpyclr vesdikrffenlnpmgnsmekeftdylfnksleieprnpkplprfpkkysyplkspgvrp snprpgt
>7avvA (A:) eqmrlpsadvyrfaepdseeniifegipiikagtviklierltyhmyadpnfvrtfltty rsfckpqellsliierfeipepepteaplsaelkrfrkeyiqpvqlrvlnvcrhwvehhf ydferdayllqrmeefigtvrgkamkkwvesitkiiqrkkiafqsspptvewhisrpghi etfdlltlhpieiarqltllesdlyravqpselvgsveinspnllkmirhttnltlwfek civetenleervavvsriieilqvfqelnnfngvlevvsamnsspvyrldhtfeqipsrq kkileeahelsedhykkylaklrsinppcvpffgiyltnilkteegnpevlkrhgkelin fskrrkvaeitgeiqqyqnqpyclrvesdikrffenlnpmgnsmekeftdylfnksleie prnpkplprfpkkysyplkspgvrp