Chains and heterogens:
PDB Chain Sequences:
>1kk3A (A:) srqaevnigmvghvdhgkttltkaltgvwtdthseelrrgitikigfadaeirrcpncgr ystspvcpycghetefvrrvsfidapghealmttmlagaslmdgailviaanepcprpqt rehlmalqiigqkniiiaqnkielvdkekalenyrqikefiegtvaenapiipisalhga nidvlvkaiedfiptpkrdpnkppkmlvlrsfdvnkpgtppeklvggvlggsivqgklkv gdeieirpgvpyeehgrikyepitteivslqaggqfveeaypgglvgvgtkldpyltkgd lmagnvvgkpgklppvwdslrlevhllervvgteqelkvepikrkevlllnvgtartmgl vtglgkdeievklqipvcaepgdrvaisrqigsrwrligygiike
>1kk3A (A:) srqaevnigmvghvdhgkttltkaltgvwtdseelrrgitikigfadaeirrcpncgrys tspvcpycghetefvrrvsfidapghealmttmlagaslmdgailviaanepcprpqtre hlmalqiigqkniiiaqnkielvdkekalenyrqikefiegtvaenapiipisalhgani dvlvkaiedfiptpkrdpnkppkmlvlrsfdvnkpgeklvggvlggsivqgklkvgdeie irpgvpyeehgrikyepitteivslqaggqfveeaypgglvgvgtkldpyltkgdlmagn vvgkpgklppvwdslrlevhllervveqelkvepikrkevlllnvgtartmglvtglgkd eievklqipvcaepgdrvaisrqigsrwrligygiike