Chains and heterogens:
PDB Chain Sequences:
>1s63A (A:) maategvgeaaqggepgqpaqpppqphppppqqqhkeemaaeageavaspmddgfvslds psyvlyrdraewadidpvpqndgpnpvvqiiysdkfrdvydyfravlqrderserafklt rdaielnaanytvwhfrrvllkslqkdlheemnyitaiieeqpknyqvwhhrrvlvewlr dpsqelefiadilnqdaknyhawqhrqwviqefklwdnelqyvdqllkedvrnnsvwnqr yfvisnttgyndravlerevqytlemiklvphnesawnylkgilqdrglskypnllnqll dlqpshsspyliaflvdiyedmlenqcdnkedilnkalelceilakekdtirkeywryig rslqskhstendsptnvqqeef
>1s63A (A:) fvsldspsyvlyrdraewadidpvpqndgpnpvvqiiysdkfrdvydyfravlqrderse rafkltrdaielnaanytvwhfrrvllkslqkdlheemnyitaiieeqpknyqvwhhrrv lvewlrdpsqelefiadilnqdaknyhawqhrqwviqefklwdnelqyvdqllkedvrnn svwnqryfvisnttgyndravlerevqytlemiklvphnesawnylkgilqdrglskypn llnqlldlqpshsspyliaflvdiyedmlenqcdnkedilnkalelceilakekdtirke ywryigrslqskhst
>1s63B (B:) maspssftyycppssspvwseplyslrpeharerlqddsvetvtsieqakveekiqevfs sykfnhlvprlvlqrekhfhylkrglrqltdayecldasrpwlcywilhslelldepipq ivatdvcqflelcqspeggfgggpgqyphlaptyaavnalciigteeaydiinrekllqy lyslkqpdgsflmhvggevdvrsaycaasvasltniitpdlfegtaewiarcqnweggig gvpgmeahggytfcglaalvilkrerslnlksllqwvtsrqmrfeggfqgrcnklvdgcy sfwqagllpllhralhaqgdpalsmshwmfhqqalqeyilmccqcpagglldkpgksrdf yhtcyclsglsiaqhfgsgamlhdvvlgvpenalqpthpvynigpdkviqattyflqkpv pgfeelkdetsaepatd
>1s63B (B:) sspvwseplyslrpeharerlqddsvetvtsieqakveekiqevfssykfnhlvprlvlq rekhfhylkrglrqltdayecldasrpwlcywilhslelldepipqivatdvcqflelcq speggfgggpgqyphlaptyaavnalciigteeaydiinrekllqylyslkqpdgsflmh vggevdvrsaycaasvasltniitpdlfegtaewiarcqnweggiggvpgmeahggytfc glaalvilkrerslnlksllqwvtsrqmrfeggfqgrcnklvdgcysfwqagllpllhra lhaqgdpalsmshwmfhqqalqeyilmccqcpagglldkpgksrdfyhtcyclsglsiaq hfgsgamlhdvvlgvpenalqpthpvynigpdkviqattyflqkpvpgfe