Chains and heterogens:
PDB Chain Sequences:
>6n81A (A:) gpskpftvpiltveemtnsrfpipleklftgpsgafvvqpqngrcttdgvllgttqlspv nictfrgdvthiagthnytmnlasqnwnnydpteeipaplgtpdfvgriqgmltqttrgd gstrghkatvstgdvhftpklgsiqfntdtnndfetgqntkftpvgvvqdgngahqnepq qwvlpsysgrtghnvhlapavaptfpgeqllffrstmpgcsgypnmnldcllpqewvqhf yqeaapaqsdvallrfvnpdtgrvlfecklhksgyvtvahtgqhdlvippngyfrfdswv nqfytlapm
>6n81A (A:) kpftvpiltveemtnsrfpipleklftgpsgafvvqpqngrcttdgvllgttqlspvnic tfrgdvthiagthnytmnlasqnwnnydpteeipaplgtpdfvgriqgmltqttrgdgst rghkatvstgdvhftpklgsiqfntdtnndfetgqntkftpvgvvqdgngahqnepqqwv lpsysgrtghnvhlapavaptfpgeqllffrstmpgcsgypnmnldcllpqewvqhfyqe aapaqsdvallrfvnpdtgrvlfecklhksgyvtvahtgqhdlvippngyfrfdswvnqf ytlapm
>6n81B (B:) gpskpftvpiltveemtnsrfpipleklftgpsgafvvqpqngrcttdgvllgttqlspv nictfrgdvthiagthnytmnlasqnwnnydpteeipaplgtpdfvgriqgmltqttrgd gstrghkatvstgdvhftpklgsiqfntdtnndfetgqntkftpvgvvqdgngahqnepq qwvlpsysgrtghnvhlapavaptfpgeqllffrstmpgcsgypnmnldcllpqewvqhf yqeaapaqsdvallrfvnpdtgrvlfecklhksgyvtvahtgqhdlvippngyfrfdswv nqfytlapm
>6n81B (B:) kpftvpiltveemtnsrfpipleklftgpsgafvvqpqngrcttdgvllgttqlspvnic tfrgdvthiagthnytmnlasqnwnnydpteeipaplgtpdfvgriqgmltqttrgdgst rghkatvstgdvhftpklgsiqfntdtnndfetgqntkftpvgvvqdgngahqnepqqwv lpsysgrtghnvhlapavaptfpgeqllffrstmpgcsgypnmnldcllpqewvqhfyqe aapaqsdvallrfvnpdtgrvlfecklhksgyvtvahtgqhdlvippngyfrfdswvnqf ytlapm
>6n81C (C:) qvqlvqsgggmvqpggslslscaasgftlsnyamtwvrqapgkglewvssiggsggttyy adsvkgrftisrdssmntlylqmsnlragdtavyycakdktrtlrlgysgmdvwgqgttv tvssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpav lqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkglevlfq
>6n81C (C:) qvqlvqsgggmvqpggslslscaasgftlsnyamtwvrqapgkglewvssiggsggttyy adsvkgrftisrdssmntlylqmsnlragdtavyycakdktrtlrlgysgmdvwgqgttv tvssastkgpsvfplaptaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglys lssvvtvpssslgtqtyicnvnhkpsntkvdkkvepk
>6n81D (D:) dirltqspsslsasvgdrvtitcrasqsissylnwyqqkpgkapdlliygasslqsgvps rfsgsgsgtdftltisslqpedfgnyycqqsfstprtfgqgtkvelkrtvaapsvfifpp sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt lskadyekhkvyacevthqglsspvtksfnrgec
>6n81D (D:) dirltqspsslsasvgdrvtitcrasqsissylnwyqqkpgkapdlliygasslqsgvps rfsgsgsgtdftltisslqpedfgnyycqqsfstprtfgqgtkvelkrtvaapsvfifpp sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt lskadyekhkvyacevthqglsspvtksfnr
>6n81H (H:) qvqlvqsgggmvqpggslslscaasgftlsnyamtwvrqapgkglewvssiggsggttyy adsvkgrftisrdssmntlylqmsnlragdtavyycakdktrtlrlgysgmdvwgqgttv tvssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpav lqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkglevlfq
>6n81H (H:) qvqlvqsgggmvqpggslslscaasgftlsnyamtwvrqapgkglewvssiggsggttyy adsvkgrftisrdssmntlylqmsnlragdtavyycakdktrtlrlgysgmdvwgqgttv tvssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpav lqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepk
>6n81L (L:) dirltqspsslsasvgdrvtitcrasqsissylnwyqqkpgkapdlliygasslqsgvps rfsgsgsgtdftltisslqpedfgnyycqqsfstprtfgqgtkvelkrtvaapsvfifpp sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt lskadyekhkvyacevthqglsspvtksfnrgec
>6n81L (L:) dirltqspsslsasvgdrvtitcrasqsissylnwyqqkpgkapdlliygasslqsgvps rfsgsgsgtdftltisslqpedfgnyycqqsfstprtfgqgtkvelkrtvaapsvfifpp sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt lskadyekhkvyacevthqglsspvtksfnr