Chains and heterogens:
PDB Chain Sequences:
>3sckA (A:) stteelaktfletfnyeaqelsyqssvaswnyntniteenvqnmnnagdkwsaflkeqst laqtyplqeiqnltvklqlqalqqngssvlsedkskrlntilntmstiystgkvcnpdnp qeclllepglneimansldynerlwaweswrsevgkqlrplyeeyvvlknemaranhyed ygdywrgdyevngvdgydysrgqliedvehtfeeikplyehlhayvraklmnaypsyisp igclpahllgdmwgrfwtnlysltvpfgqkpnidvtdamvdqawdaqrifkeaekffvsv glpnmtqgfwensmltdpgnvqkavchptawdlgkgdfrilmctkvtmddfltahhemgh iqydmayaaqpfllrnganegfheavgeimslsaatpkhlksigllspdfqedneteinf llkqaltivgtlpftymlekwrwmvfkgeipkdqwmkkwwemkreivgvvepvphdetyc dpaslfhvsndysfiryytrtlyqfqfqealcqaakhegplhkcdisnsteagqklfnml rlgksepwtlalenvvgaknmnvrpllnyfeplftwlkdqnknsfvgwstdwspyadhhh hhh
>3sckA (A:) stteelaktfletfnyeaqelsyqssvaswnyntniteenvqnmnnagdkwsaflkeqst laqtyplqeiqnltvklqlqalqqngssvlsedkskrlntilntmstiystgkvcnpdnp qeclllepglneimansldynerlwaweswrsevgkqlrplyeeyvvlknemaranhyed ygdywrgdyevngvdgydysrgqliedvehtfeeikplyehlhayvraklmnaypsyisp igclpahllgdmwgrfwtnlysltvpfgqkpnidvtdamvdqawdaqrifkeaekffvsv glpnmtqgfwensmltdpgnvqkavchptawdlgkgdfrilmctkvtmddfltahhemgh iqydmayaaqpfllrnganegfheavgeimslsaatpkhlksigllspdfqedneteinf llkqaltivgtlpftymlekwrwmvfkgeipkdqwmkkwwemkreivgvvepvphdetyc dpaslfhvsndysfiryytrtlyqfqfqealcqaakhegplhkcdisnsteagqklfnml rlgksepwtlalenvvgaknmnvrpllnyfeplftwlkdqnknsfvgwstdwspyad
>3sckB (B:) stteelaktfletfnyeaqelsyqssvaswnyntniteenvqnmnnagdkwsaflkeqst laqtyplqeiqnltvklqlqalqqngssvlsedkskrlntilntmstiystgkvcnpdnp qeclllepglneimansldynerlwaweswrsevgkqlrplyeeyvvlknemaranhyed ygdywrgdyevngvdgydysrgqliedvehtfeeikplyehlhayvraklmnaypsyisp igclpahllgdmwgrfwtnlysltvpfgqkpnidvtdamvdqawdaqrifkeaekffvsv glpnmtqgfwensmltdpgnvqkavchptawdlgkgdfrilmctkvtmddfltahhemgh iqydmayaaqpfllrnganegfheavgeimslsaatpkhlksigllspdfqedneteinf llkqaltivgtlpftymlekwrwmvfkgeipkdqwmkkwwemkreivgvvepvphdetyc dpaslfhvsndysfiryytrtlyqfqfqealcqaakhegplhkcdisnsteagqklfnml rlgksepwtlalenvvgaknmnvrpllnyfeplftwlkdqnknsfvgwstdwspyadhhh hhh
>3sckB (B:) stteelaktfletfnyeaqelsyqssvaswnyntniteenvqnmnnagdkwsaflkeqst laqtyplqeiqnltvklqlqalqqngssvlsedkskrlntilntmstiystgkvcnpdnp qeclllepglneimansldynerlwaweswrsevgkqlrplyeeyvvlknemaranhyed ygdywrgdyevngvdgydysrgqliedvehtfeeikplyehlhayvraklmnaypsyisp igclpahllgdmwgrfwtnlysltvpfgqkpnidvtdamvdqawdaqrifkeaekffvsv glpnmtqgfwensmltdpgnvqkavchptawdlgkgdfrilmctkvtmddfltahhemgh iqydmayaaqpfllrnganegfheavgeimslsaatpkhlksigllspdfqedneteinf llkqaltivgtlpftymlekwrwmvfkgeipkdqwmkkwwemkreivgvvepvphdetyc dpaslfhvsndysfiryytrtlyqfqfqealcqaakhegplhkcdisnsteagqklfnml rlgksepwtlalenvvgaknmnvrpllnyfeplftwlkdqnknsfvgwstdwspyad
>3sckE (E:) pfgevfnatkfpsvyawerkkisncvadysvlynstffstfkcygvsatklndlcfsnvy adsfvvkgddvrqiapgqtgviadynyklpddfmgcvlawntrnidatstgnynykyryl rhgklrpferdisnvpfspdgkpctppapncywplrgygfytttgigyqpyrvvvlsfeh hhhhh
>3sckE (E:) pfgevfnatkfpsvyawerkkisncvadysvlynstffstfkcygvsatklnvyadsfvv kgddvrqiapgqtgviadynyklpddfmgcvlawntrnidatstgnynykyrylrhgklr pferdisnvpfspdgkpctppapncywplrgygfytttgigyqpyrvvvlsfe
>3sckF (F:) pfgevfnatkfpsvyawerkkisncvadysvlynstffstfkcygvsatklndlcfsnvy adsfvvkgddvrqiapgqtgviadynyklpddfmgcvlawntrnidatstgnynykyryl rhgklrpferdisnvpfspdgkpctppapncywplrgygfytttgigyqpyrvvvlsfeh hhhhh
>3sckF (F:) pfgevfnatkfpsvyawerkkisncvadysvlynstffstfkcygvsatklnvyadsfvv kgddvrqiapgqtgviadynyklpddfmgcvlawntrnidatstgnynykyrylrhgklr pferdisnvpfspdgkpctppapncywplrgygfytttgigyqpyrvvvlsfe