Chains and heterogens:
PDB Chain Sequences:
>1lk3A (A:) msenscthfpgnlpnmlrdlrdafsrvktffqmkdqldnlllkeslledfkgylgcqals emiqfyleevmpqaenqdpdikahvnslgenlktlrlrlrrchrflpcengggsggkska veqvknafnklqekgiykamsefdifinyieaymtmkirn
>1lk3A (A:) nmlrdlrdafsrvktffqmkdqldnlllkeslledfkgylgcqalsemiqfyleevmpqa enqdpdikahvnslgenlktlrlrlrrchrflpcekskaveqvknafnklqekgiykams efdifinyieaymtmk
>1lk3B (B:) msenscthfpgnlpnmlrdlrdafsrvktffqmkdqldnlllkeslledfkgylgcqals emiqfyleevmpqaenqdpdikahvnslgenlktlrlrlrrchrflpcengggsggkska veqvknafnklqekgiykamsefdifinyieaymtmkirn
>1lk3B (B:) nmlrdlrdafsrvktffqmkdqldnlllkeslledfkgylgcqalsemiqfyleevmpqa enqdpdikahvnslgenlktlrlrlrrchrflpcekskaveqvknafnklqekgiykams efdifinyieaymtmk
>1lk3H (H:) qvnllqsgaalvkpgasvklsckasgytftdfyihwvkqshgkslewigyinpnsgytny nekfknkatltvdkststgymelsrltsedsanysctrgvpgnnwfpywgqgtlvtvssa ettapsvyplapgtalksnsmvtlgclvkgyfpepvtvtwnsgalssgvhtfpavlqsgl ytltssvtvpsstwpsqtvtcnvahpasstkvdkkivpr
>1lk3I (I:) qvnllqsgaalvkpgasvklsckasgytftdfyihwvkqshgkslewigyinpnsgytny nekfknkatltvdkststgymelsrltsedsanysctrgvpgnnwfpywgqgtlvtvssa ettapsvyplapgtalksnsmvtlgclvkgyfpepvtvtwnsgalssgvhtfpavlqsgl ytltssvtvpsstwpsqtvtcnvahpasstkvdkkivpr
>1lk3L (L:) dtvltqppaltvspgekltisckasesvtsrmhwyqqkpgqqpklliykasnlasgvpar fsgsgsgtdftltidpveaddtaiyfcqqswngpltfgagtklelkradaaptvsifpps teqlatggasvvclmnnfyprdisvkwkidgterrdgvldsvtdqdskdstysmsstlsl tkadyeshnlytcevvhktssspvvksfnr
>1lk3M (M:) dtvltqppaltvspgekltisckasesvtsrmhwyqqkpgqqpklliykasnlasgvpar fsgsgsgtdftltidpveaddtaiyfcqqswngpltfgagtklelkradaaptvsifpps teqlatggasvvclmnnfyprdisvkwkidgterrdgvldsvtdqdskdstysmsstlsl tkadyeshnlytcevvhktssspvvksfnr