Chains and heterogens:
PDB Chain Sequences:
>2lkfA (A:) egkitpvsvkkvddkvtlykttatadsdkfkisqiltfnfikdksydkdtlvlkatgnin sgfvkpnpndydfsklywgakynvsissqsndsvnvvdyapknqneefqvqntlgytfgg disisnglsgglngntafsetinykqesyrttlsrntnyknvgwgveahkimnngwgpyg rdsfhptygnelflagrqssayagqnfiaqhqmpllsrsnfnpeflsvlshrqdgakksk itvtyqremdlyqirwngfywaganyknfktrtfkstyeidwenhkvklldtketennk
>2lkfA (A:) egkitpvsvkkvddkvtlykttatadsdkfkisqiltfnfikdksydkdtlvlkatgnin sgfvkpnpndydfsklywgakynvsissqsndsvnvvdyapknqneefqvqntlgytfgg disisngllngntafsetinykqesyrttlsrntnyknvgwgveahkimnngwgpygrds fhptygnelflagrqssayagqnfiaqhqmpllsrsnfnpeflsvlshrqdgakkskitv tyqremdlyqirwngfywaganyknfktrtfkstyeidwenhkvklldtketennk