Chains and heterogens:
PDB Chain Sequences:
>1efcA (A:) tkphvnvgtighvdhgkttltaaittvlaktyggaarafdqidnapeekargitintshv eydtptrhyahvdcpghadyvknmitgaaqmdgailvvaatdgpmpqtrehillgrqvgv pyiivflnkcdmvddeellelvemevrellsqydfpgddtpivrgsalkalegdaeweak ilelagfldsyipeperaidkpfllpiedvfsisgrgtvvtgrvergiikvgeeveivgi ketqkstctgvemfrklldegragenvgvllrgikreeiergqvlakpgtikphtkfese vyilskdeggrhtpffkgyrpqfyfrttdvtgtielpegvemvmpgdnikmvvtlihpia mddglrfaireggrtvgagvvakvls
>1efcB (B:) tkphvnvgtighvdhgkttltaaittvlaktyggaarafdqidnapeekargitintshv eydtptrhyahvdcpghadyvknmitgaaqmdgailvvaatdgpmpqtrehillgrqvgv pyiivflnkcdmvddeellelvemevrellsqydfpgddtpivrgsalkalegdaeweak ilelagfldsyipeperaidkpfllpiedvfsisgrgtvvtgrvergiikvgeeveivgi ketqkstctgvemfrklldegragenvgvllrgikreeiergqvlakpgtikphtkfese vyilskdeggrhtpffkgyrpqfyfrttdvtgtielpegvemvmpgdnikmvvtlihpia mddglrfaireggrtvgagvvakvls