Chains and heterogens:
PDB Chain Sequences:
>1bxxA (A:) mhhhhhhqigwrregikyrrnelfldvlesvnllmspqgqvlsahvsgrvvmksylsgmp eckfgmndkiviekqgkgtadetsksgkqsiaiddctfhqcvrlskfdsersisfippdg efelmryrttkdiilpfrviplvrevgrtklevkvviksnfkpsllaqkievriptplnt sgvqvicmkgkakykasenaivwkikrmagmkesqisaeiellptndkkkwarppismnf evpfapsglkvrylkvfepklnysdhdvikwvryigrsgiyetrc
>1bxxA (A:) igwrregikyrrnelfldvlesvnllmspqgqvlsahvsgrvvmksylsgmpeckfgmnd kikqsiaiddctfhqcvrlsersisfippdgefelmryrttkdiilpfrviplvrevgrt klevkvviksnfkpsllaqkievriptplntsgvqvicmkgkakykasenaivwkikrma gmkesqisaeiellptndkkkwarppismnfevpfapsglkvrylkvfepklnysdhdvi kwvryigrsgiyetrc