Chains and heterogens:
PDB Chain Sequences:
>4xziA (A:) masrillnngakmpilglgtwksppgqvteavkvaidvgyrhidcahvyqnenevgvaiq eklreqvvkreelfivsklwctyhekglvkgacqktlsdlkldyldlylihwptgfkpgk effpldesgnvvpsdtnildtwaameelvdeglvkaigisnfnhlqvemilnkpglkykp avnqiechpyltqekliqycqskgivvtaysplgspdrpwakpedpslledprikaiaak hnkttaqvlirfpmqrnlvvipksvtperiaenfkvfdfelssqdmttllsynrnwrvca llsctshkdypfheef