Chains and heterogens:
PDB Chain Sequences:
>3lkfA (A:) egkitpvsvkkvddkvtlykttatadsdkfkisqiltfnfikdksydkdtlvlkatgnin sgfvkpnpndydfsklywgakynvsissqsndsvnvvdyapknqneefqvqntlgytfgg disisnglsgglngntafsetinykqesyrttlsrntnyknvgwgveahkimnngwgpyg rdsfhptygnelflagrqssayagqnfiaqhqmpllsrsnfnpeflsvlshrqdgakksk itvtyqremdlyqirwngfywaganyknfktrtfkstyeidwenhkvklldtketennk
>3lkfA (A:) egkitpvsvkkvddkvtlykttatadsdkfkisqiltfnfikdksydkdtlvlkatgnin sgfvkpnpndydfsklywgakynvsissqsndsvnvvdyapknqneefqvqntlgytfgg disisngltafsetinykqesyrttlsrntnyknvgwgveahkimnngwgpygrdsfhpt ygnelflagrqssayagqnfiaqhqmpllsrsnfnpeflsvlshrqdgakkskitvtyqr emdlyqirwngfywaganyknfktrtfkstyeidwenhkvklldtketennk