Chains and heterogens:
PDB Chain Sequences:
>1ls2A (A:) skekfertkphvnvgtighvdhgkttltaaittvlaktyggaarafdqidnapeekargi tintshveydtptrhyahvdcpghadyvknmitgaaqmdgailvvaatdgpmpqtrehil lgrqvgvpyiivflnkcdmvddeellelvemevrellsqydfpgddtpivrgsalkaleg daeweakilelagfldsyipeperaidkpfllpiedvfsisgrgtvvtgrvergiikvge eveivgiketqkstctgvemfrklldegragenvgvllrgikreeiergqvlakpgtikp htkfesevyilskdeggrhtpffkgyrpqfyfrttdvtgtielpegvemvmpgdnikmvv tlihpiamddglrfaireggrtvgagvvakvls
>1ls2A (A:) tkphvnvgtighvdhgkttltaaittvlaktyggaarafdqidnapeekargitintshv eydtptrhyahvdcpghadyvknmitgaaqmdgailvvaatdgpmpqtrehillgrqvgv pyiivflnkcdmvddeellelvemevrellsqydfpgddtpivrgsalkalegdaeweak ilelagfldsyipeperaidkpfllpiedvfsisgrgtvvtgrvergiikvgeeveivgi ketqkstctgvemfrklldegragenvgvllrgikreeiergqvlakpgtikphtkfese vyilskdeggrhtpffkgyrpqfyfrttdvtgtielpegvemvmpgdnikmvvtlihpia mddglrfaireggrtvgagvvakvls