Chains and heterogens:
PDB Chain Sequences:
>1jkkA (A:) tvfrqenvddyydtgeelgsgqfavvkkcrekstglqyaakfikkrrtkssrrgvsredi erevsilkeiqhpnvitlhevyenktdvililelvaggelfdflaekeslteeeateflk qilngvyylhslqiahfdlkpenimlldrnvpkprikiidfglahkidfgnefknifgtp efvapeivnyeplgleadmwsigvityillsgaspflgdtkqetlanvsavnyefedeyf sntsalakdfirrllvkdpkkrmtiqdslqhpwikpkdtqqalssawshpqf
>1jkkA (A:) tvfrqenvddyydtgeelgsgqfavvkkcrekstglqyaakfikkrrtkssrrgvsredi erevsilkeiqhpnvitlhevyenktdvililelvaggelfdflaekeslteeeateflk qilngvyylhslqiahfdlkpenimlldrnvpkprikiidfglahkidfgnefknifgtp efvapeivnyeplgleadmwsigvityillsgaspflgdtkqetlanvsavnyefedeyf sntsalakdfirrllvkdpkkrmtiqdslqhpwikpf