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