Chains and heterogens:
PDB Chain Sequences:
>1t40A (A:) masrlllnngakmpilglgtwksppgqvteavkvaidvgyrhidcahvyqnenevgvaiq eklreqvvkreelfivsklwctyhekglvkgacqktlsdlkldyldlylihwptgfkpgk effpldesgnvvpsdtnildtwaameelvdeglvkaigisnfnhlqvemilnkpglkykp avnqiechpyltqekliqycqskgivvtaysplgspdrpwakpedpslledprikaiaak hnkttaqvlirfpmqrnlvvipksvtperiaenfkvfdfelssqdmttllsynrnwrvca llsctshkdypfheef