Chains and heterogens:
PDB Chain Sequences:
>4zf8A (A:) mtikempqpktfgelknlpllntdkpvqalmkiadelgeifkfeapglvtrylssqrlik eacdesrfdknlsqalkfvrdiagdglvtswtheknwkkahnillpsfsqqamkgyhamm vdiavqlvqkwerlnadehievpedmtrltldtiglcgfnyrfnsfyrdqphpfitsmvr aldeamnkqqranpddpaydenkrqfqedikvmndlvdkiiadrkasgeqsddllthmln gkdpetgeplddeniryqiitfliaghvttsgllsfalyflvknphvlqkaaeeaarvlv dpvpsykqvkqlkyvgmvlnealrlwptapafslyakedtvlggeyplekgdelmvlipq lhrdktiwgddveefrperfenpsaipqhafkpfgngqracigqqfalheatlvlgmmlk hfdfedhtnyeldiketltlkpegfvvkakskkiplggipsthhhhhh
>4zf8A (A:) tikempqpktfgelknlpllntdkpvqalmkiadelgeifkfeapglvtrylssqrlike acdesrfdknlsqalkfvrdiagdglvtswtheknwkkahnillpsfsqqamkgyhammv diavqlvqkwerlnadehievpedmtrltldtiglcgfnyrfnsfyrdqphpfitsmvra ldeamnkqqranpddpaydenkrqfqedikvmndlvdkiiadrkasgeqsddllthmlng kdpetgeplddeniryqiitfliaghvttsgllsfalyflvknphvlqkaaeeaarvlvd pvpsykqvkqlkyvgmvlnealrlwptapafslyakedtvlggeyplekgdelmvlipql hrdktiwgddveefrperfenpsaipqhafkpfgngqracigqqfalheatlvlgmmlkh fdfedhtnyeldiketltlkpegfvvkakskkiplggips