Chains and heterogens:
PDB Chain Sequences:
>1qw6A (A:) gprflkvknwetdvvltdtlhlkstletgctehicmgsimlpsqhtrkpedvrtkdqlfp lakefldqyyssikrfgskahmdrleevnkeieststyqlkdteliygakhawrnasrcv griqwsklqvfdardcttahgmfnyicnhvkyatnkgnlrsaitifpqrtdgkhdfrvwn sqliryagykqpdgstlgdpanvqfteiciqqgwkaprgrfdvlplllqangndpelfqi ppelvlevpirhpkfdwfkdlglkwyglpavsnmlleigglefsacpfsgwymgteigvr dycdnsrynileevakkmdldmrktsslwkdqalveiniavlysfqsdkvtivdhhsate sfikhmeneyrcrggcpadwvwivppmsgsitpvfhqemlnyrltpsfeyqpdpwnthvw