Chains and heterogens:
PDB Chain Sequences:
>2is7A (A:) asrlllnngakmpilglgtwksppgqvteavkvaidvgyrhidcahvyqnenevgvaiqe klreqvvkreelfivsklwctyhekglvkgacqktlsdlkldyldlylihwptgfkpgke ffpldesngvvpsdtnildtwaameelvdeglvkaigisnfnhlqvemilnkpglkykpa vnqiechpyltqekliqycqskgivvtaysplgspdrpwakpedpslledprikaiaakh dkttaqvlirfpmqrnlvvipksvtperiaenfkvfdfelssqdmttllsynrnwrvcal lsctshkdypfheef