Chains and heterogens:
PDB Chain Sequences:
>1i60A (A:) mklcfneattlensnlkldlelcekhgydyieirtmdklpeylkdhslddlaeyfqthhi kplalnalvffnnrdekghneiitefkgmmetcktlgvkyvvavplvteqkivkeeikks svdvltelsdiaepygvkialefvghpqctvntfeqayeivntvnrdnvglvldsfhfha mgsnieslkqadgkkifiyhiddtedfpigfltdedrvwpgqgaidldahlsalkeigfs dvvsvelfrpeyykltaeeaiqtakkttvdvvskyfsm