Chains and heterogens:
PDB Chain Sequences:
>1ga7A (A:) mlkpdnlpvtfgkndveiiaretlyrgffsldlyrfrhrlfngqmshevrreiferghaa vllpfdpvrdevvlieqiriaaydtsetpwllemvagmieegesvedvarreaieeagli vkrtkpvlsflaspggtserssimvgevdattasgihgladenedirvhvvsreqayqwv eegkidnaasvialqwlqlhhqalknewa
>1ga7A (A:) mlkpdnlpvtfgkndveiiaretlyrgffsldlyrfrhrlfngqmshevrreiferghaa vllpfdpvrdevvlieqiriaaydtsetpwllemvagmieegesvedvarreaieeagli vkrtkpvlsflaspggtserssimvgevdattasadenedirvhvvsreqayqwveegki dnaasvialqwlqlhhqalknewa
>1ga7B (B:) pvtfgkndveiiaretlyrgffsldlyrfrhrlfngqmshevrreiferghaavllpfdp vrdevvlieqiriaaydtsetpwllemvagmieegesvedvarreaieeaglivkrtkpv lsflaspggtserssimvgevdattasgihgladenedirvhvvsreqayqwveegkidn aasvialqwlqlhhqalknewa