Chains and heterogens:
PDB Chain Sequences:
>2ff4A (A:) magsatvekrldfgllgplqmtidgtpvpsgtpkqravlamlvinrnrpvgvdalitalw eewppsgarasihsyvsnlrkllggagidprvvlaaappgyrlsipdntcdlgrfvaekt agvhaaaagrfeqasrhlsaalrewrgpvlddlrdfqfvepfatalvedkvlahtakaea eiacgrasaviaelealtfehpyreplwtqlitayylsdrqsdalgayrrvkttladdlg idpgptlralnerilrqqpldakksakttaagtvtvldqrtmasgqqavaylhdiasgrg yplqaaatrigrlhdndivldsanvsrhhavivdtgtnyvindlrssngvhvqherirsa vtlndgdhiricdheftfqisagthggt
>2ff4A (A:) ekrldfgllgplqmtidgtpvpsgtpkqravlamlvinrnrpvgvdalitalweewppsg arasihsyvsnlrkllggagidprvvlaaappgyrlsipdntcdlgrfvaektagvhaaa agrfeqasrhlsaalrewrgpvlddlrdfqfvepfatalvedkvlahtakaeaeiacgra saviaelealtfehpyreplwtqlitayylsdrqsdalgayrrvkttladdlgidpgptl ralnerilrqqpldakksakttaagtvtvldqrtmasgqqavaylhdiasgrgyplqaaa trigrlhdndivldsanvsrhhavivdtgtnyvindlrssngvhvqherirsavtlndgd hiricdheftfqisagthg
>2ff4B (B:) magsatvekrldfgllgplqmtidgtpvpsgtpkqravlamlvinrnrpvgvdalitalw eewppsgarasihsyvsnlrkllggagidprvvlaaappgyrlsipdntcdlgrfvaekt agvhaaaagrfeqasrhlsaalrewrgpvlddlrdfqfvepfatalvedkvlahtakaea eiacgrasaviaelealtfehpyreplwtqlitayylsdrqsdalgayrrvkttladdlg idpgptlralnerilrqqpldakksakttaagtvtvldqrtmasgqqavaylhdiasgrg yplqaaatrigrlhdndivldsanvsrhhavivdtgtnyvindlrssngvhvqherirsa vtlndgdhiricdheftfqisagthggt
>2ff4B (B:) ekrldfgllgplqmtidgtpvpsgtpkqravlamlvinrnrpvgvdalitalweewppsg arasihsyvsnlrkllggagidprvvlaaappgyrlsipdntcdlgrfvaektagvhaaa agrfeqasrhlsaalrewrgpvlddlrdfqfvepfatalvedkvlahtakaeaeiacgra saviaelealtfehpyreplwtqlitayylsdrqsdalgayrrvkttladdlgidpgptl ralnerilrqqpldakksakttaagtvtvldqrtmasgqqavaylhdiasgrgyplqaaa trigrlhdndivldsanvsrhhavivdtgtnyvindlrssngvhvqherirsavtlndgd hiricdheftfqi