Chains and heterogens:
PDB Chain Sequences:
>4n63A (A:) dkiclghhavsngtkvntltergvevvnatetvertnipricskgkrtvdlgqcgllgti tgppqcdqflefsadliierregsdvcypgkfvneealrqilresggidkeamgftysgi rtngatsacrrsgssfyaemkwllsntdnaafpqmtksykntrkspalivwgihhsvsta eqtklygsgnklvtvgssnyqqsfvpspgarpqvnglsgridfhwlmlnpndtvtfsfng afiapdrasflrgksmgiqsgvqvdancegdcyhsggtiisnlpfqnidsravgkcpryv kqrslllatgmknvpeipkgr
>4n63A (A:) dkiclghhavsngtkvntltergvevvnatetvertnipricskgkrtvdlgqcgllgti tgppqcdqflefsadliierregsdvcypgkfvneealrqilresggidkeamgftysgi rtngatsacrrsgssfyaemkwllsntdnaafpqmtksykntrkspalivwgihhsvsta eqtklygsgnklvtvgssnyqqsfvpspgarpqvnglsgridfhwlmlnpndtvtfsfng afiapdrasflrgksmgiqsgvqvdancegdcyhsggtiisnlpfqnidsravgkcpryv kqrslllatgmknvpeip
>4n63B (B:) glfgaiagfiengweglidgwygfrhqnaqgegtaadykstqsaidqitgklnrliektn qqfelidnefnevekqignvinwtrdsitevwsynaellvamenqhtidladsemdklye rvkrqlrenaeedgtgcfeifhkcdddcmasirnntydhskyreeamqnriqidpvsgrl vpr
>4n63B (B:) gaiagfiengweglidgwygfrhqnaqgegtaadykstqsaidqitgklnrliektnqqf elidnefnevekqignvinwtrdsitevwsynaellvamenqhtidladsemdklyervk rqlrenaeedgtgcfeifhkcdddcmasirnntydhskyreeamqnriq
>4n63C (C:) dkiclghhavsngtkvntltergvevvnatetvertnipricskgkrtvdlgqcgllgti tgppqcdqflefsadliierregsdvcypgkfvneealrqilresggidkeamgftysgi rtngatsacrrsgssfyaemkwllsntdnaafpqmtksykntrkspalivwgihhsvsta eqtklygsgnklvtvgssnyqqsfvpspgarpqvnglsgridfhwlmlnpndtvtfsfng afiapdrasflrgksmgiqsgvqvdancegdcyhsggtiisnlpfqnidsravgkcpryv kqrslllatgmknvpeipkgr
>4n63C (C:) dkiclghhavsngtkvntltergvevvnatetvertnipricskgkrtvdlgqcgllgti tgppqcdqflefsadliierregsdvcypgkfvneealrqilresggidkeamgftysgi rtngatsacrrsgssfyaemkwllsntdnaafpqmtksykntrkspalivwgihhsvsta eqtklygsgnklvtvgssnyqqsfvpspgarpqvnglsgridfhwlmlnpndtvtfsfng afiapdrasflrgksmgiqsgvqvdancegdcyhsggtiisnlpfqnidsravgkcpryv kqrslllatgmknvpeip
>4n63D (D:) glfgaiagfiengweglidgwygfrhqnaqgegtaadykstqsaidqitgklnrliektn qqfelidnefnevekqignvinwtrdsitevwsynaellvamenqhtidladsemdklye rvkrqlrenaeedgtgcfeifhkcdddcmasirnntydhskyreeamqnriqidpvsgrl vpr
>4n63D (D:) gaiagfiengweglidgwygfrhqnaqgegtaadykstqsaidqitgklnrliektnqqf elidnefnevekqignvinwtrdsitevwsynaellvamenqhtidladsemdklyervk rqlrenaeedgtgcfeifhkcdddcmasirnntydhskyreeamqnriq