Chains and heterogens:
PDB Chain Sequences:
>1iqqA (A:) ydyfqftqqyqlavcnsnrtlckdppdklftvhglwpsnmvgpdpskcpiknirkrekll ehqleiiwpnvfdrtknnlfwdkewmkhgscgyptidnenhyfetvikmyiskkqnvsri lskakiepdgkkralldienairngadnkkpklkcqkkgtttelveitlcsdksgehfid cphpfepisphycptnniky