Chains and heterogens:
PDB Chain Sequences:
>1fgrA (A:) mfsaghkikgtvvlmpknelevnpdgsavdnlnaflgrsvslqlisatkadahgkgkvgk dtflegintslptlgagesafnihfewdgsmgipgafyiknymqvefflksltleaisnq gtirfvcnswvyntklyksvriffanhtyvpsetpaplvsyreeelkslrgngtgerkey driydydvyndlgnpdkseklarpvlggsstfpyprrgrtgrgptvtdpntekqgevfyv prdenlghlkskdaleigtkslsqivqpafesafdlkstpiefhsfqdvhdlyeggiklp rdvistiiplpvikelyrtdgqhilkfpqphvvqvsqsawmtdeefaremiagvnpcvir gleefppksnldpaiygdqsskitadsldldgytmdealgsrrlfmldyhdifmpyvrqi nqlnsaktyatrtilflredgtlkpvaielslphsagdlsaavsqvvlpakegvestiwl lakayvivndscyhqlmshwlnthaamepfviathrhlsvlhpiyklltphyrnnmnina larqslinangiiettflpskysvemssavyknwvftdqalpadlikrgvaikdpstphg vrlliedypyaadgleiwaaiktwvqeyvplyyardddvkndselqhwwkeavekghgdl kdkpwwpklqtledlvevcliiiwiasalhaavnfgeypygglimnrptasrrllpekgt peyeeminnhekaylrtitsklptlislsvieilsthasdevylgqrdnphwtsdskalq afqkfgnklkeieeklvrrnndpslqgnrlgpvqlpytllypsseegltfrgipnsisi
>1fgrA (A:) hkikgtvvlmpknelenlnaflgrsvslqlisatkadahgkgkvgkdtflegintslptl gagesafnihfewdgsmgipgafyiknymqvefflksltleaitirfvcnswvyntklyk svriffanhtyvpsetpaplvsyreeelkslrgngtgerkeydriydydvyndlgnpdks eklarpvlggsstfpyprrgrtgrgptvtdpntekqgevfyvprdenlghlkskdaleig tkslsqivqpafesafdlkstpiefhsfqdvhdlyeggiklprdvistiiplpvikelyr tdgqhilkfpqphvvqvsqsawmtdeefaremiagvnpcvirgleefppksnldpaiygd qsskitadsldldgytmdealgsrrlfmldyhdifmpyvrqinqlnsaktyatrtilflr edgtlkpvaielslphsagdlsaavsqvvlpakegvestiwllakayvivndscyhqlms hwlnthaamepfviathrhlsvlhpiyklltphyrnnmninalarqslinangiiettfl pskysvemssavyknwvftdqalpadlikrgvaikdpstphgvrlliedypyaadgleiw aaiktwvqeyvplyyardddvkndselqhwwkeavekghgdlkdkpwwpklqtledlvev cliiiwiasalhaavnfgeypygglimnrptasrrllpekgtpeyeeminnhekaylrti tsklptlislsvieilsthasdevylgqrdnphwtsdskalqafqkfgnklkeieeklvr rnndpslqgnrlgpvqlpytllypsseegltfrgipnsisi