Chains and heterogens:
PDB Chain Sequences:
>1ireA (A:) mtenilrksdeeiqkeitarvkalesmlieqgilttsmidrmaeiyenevgphlgakvvv kawtdpefkkrlladgteackelgigglqgedmmwventdevhhvvvctlascypwpvlg lppnwfkepqyrsrvvreprqllkeefgfevppskeikvwdsssemrfvvlpqrpagtdg wseeelatlvtresmigvepakav
>1ireA (A:) tenilrksdeeiqkeitarvkalesmlieqgilttsmidrmaeiyenevgphlgakvvvk awtdpefkkrlladgteackelgigglqgedmmwventdevhhvvvctlascypwpvlgl ppnwfkepqyrsrvvreprqllkeefgfevppskeikvwdsssemrfvvlpqrpagtdgw seeelatlvtresmigvepakav
>1ireB (B:) mngvydvggtdglgpinrpadepvfraewekvafamfpatfragfmgldefrfgieqmnp aeylespyywhwirtyihhgvrtgkidleelerrtqyyrenpdaplpeheqkpeliefvn qavygglpasrevdrppkfkegdvvrfstaspkgharraryvrgktgtvvkhhgayiypd tagnglgecpehlytvrftaqelwgpegdpnssvyydcwepyielvdt