Chains and heterogens:
PDB Chain Sequences:
>1z89A (A:) masrillnngakmpilglgtwksppgqvteavkvaidvgyrhidcahvyqnenevgvaiq eklreqvvkreelfivsklwctyhekglvkgacqktlsdlkldyldlylihwptgfkpgk effpldesgnvvpsdtnildtwaameelvdeglvkaigisnfnhlqvemilnkpglkykp avnqiechpyltqekliqycqskgivvtaysplgspdrpwakpedpslledprikaiaak hnkttaqvlirfpmqrnlvvipksvtperiaenfkvfdfelssqdmttllsynrnwrvca llsctshkdypfheef