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