Chains and heterogens:
PDB Chain Sequences:
>1lkfA (A:) egkitpvsvkkvddkvtlykttatadsdkfkisqiltfnfikdksydkdtlvlkatgnin sgfvkpnpndydfsklywgakynvsissqsndsvnvvdyapknqneefqvqntlgytfgg disisnglsgglngntafsetinykqesyrttlsrntnyknvgwgveahkimnngwgpyg rdsfhptygnelflagrqssayagqnfiaqhqmpllsrsnfnpeflsvlshrqdgakksk itvtyqremdlyqirwngfywaganyknfktrtfkstyeidwenhkvklldtketennk
>1lkfA (A:) egkitpvsvkkvddkvtlykttatadsdkfkisqiltfnfikdksydkdtlvlkatgnin sgfvkpnpndydfsklywgakynvsissqsndsvnvvdyapknqneefqvqntlgytfgg disisngltafsetinykqesyrttlsrntnyknvgwgveahkimnngwgpygrdsfhpt ygnelflagrqssayagqnfiaqhqmpllsrsnfnpeflsvlshrqdgakkskitvtyqr emdlyqirwngfywaganyknfktrtfkstyeidwenhkvklldtketennk