Chains and heterogens:
PDB Chain Sequences:
>3b53X (X:) mgsshhhhhhssglvprgshmarqnlkstdravqqmldkakregiqtvwdryeamkpqcg fgetglccrhclqgpcrinpfgdepkvgicgataevivargldrsiaagaaghsghakhl ahtlkkavqgkaasymikdrtklhsiakrlgiptegqkdedialevakaaladfhekdtp vlwvttvlppsrvkvlsahglipagidheiaeimhrtsmgcdadaqnlllgglrcsladl agcymgtdladilfgtpapvvtesnlgvlkadavnvavhghnpvlsdiivsvskemenea raagatginvvgicctgnevlmrhgipacthsvsqemamitgaldamildyqciqpsvat iaectgttvittmemskitgathvnfaeeaavenakqilrlaidtfkrrkgkpveipnik tkvvagfsteaiinalsklnandplkplidnvvngnirgvclfagcnnvkvpqdqnftti arkllkqnvlvvatgcgagalmrhgfmdpanvdelcgdglkavltaigeanglggplppv lhmgscvdnsravalvaalanrlgvdldrlpvvasaaeamhekavaigtwavtiglpthi gvlppitgslpvtqiltssvkditggyfiveldpetaadkllaainerraglglpw
>3b53X (X:) qnlkstdravqqmldkakregiqtvwdryeamkpqcgfgetglccrhclqgpcrinpfgd epkvgicgataevivargldrsiaagaaghsghakhlahtlkkavqgkaasymikdrtkl hsiakrlgiptegqkdedialevakaaladfhekdtpvlwvttvlppsrvkvlsahglip agidheiaeimhrtsmgcdadaqnlllgglrcsladlagcymgtdladilfgtpapvvte snlgvlkadavnvavhghnpvlsdiivsvskemenearaagatginvvgicctgnevlmr hgipacthsvsqemamitgaldamildyqciqpsvatiaectgttvittmemskitgath vnfaeeaavenakqilrlaidtfkrrkgkpveipniktkvvagfsteaiinalsklnand plkplidnvvngnirgvclfagcnnvkvpqdqnfttiarkllkqnvlvvatgcgagalmr hgfmdpanvdelcgdglkavltaigeanglggplppvlhmgscvdnsravalvaalanrl gvdldrlpvvasaaeamhekavaigtwavtiglpthigvlppitgslpvtqiltssvkdi tggyfiveldpetaadkllaainerraglglpw