Chains and heterogens:
PDB Chain Sequences:
>2btuA (A:) manaykqagvdieagyeavsrmkkhvqttmrkevlgglggfggmfdlskfaleepvlvsg tdgvgtklmlafmadkhdtigidavamcvndivvqgaeplffldyiacgkaepskieniv kgisegcrqagcaliggetaempgmysteeydlagftvgivdkkkivtgekieaghvlig lassgihsngyslvrkvlledgelsldriygrlelplgeellkptkiyvkpilellknhe vygmahitgggfieniprmlpegigaeielgswkiqpifsllqevgkleekemfnifnmg igmvvavkeedakdivrlleeqgetariigrtvqgagvtfnggkal
>2btuA (A:) eagyeavsrmkkhvqttmrkevlggfggmfdlskfaleepvlvsgtdgvgtklmlafmad khdtigidavamcvndivvqgaeplffldyiacgkaepskienivkgisegcrqagcali ggetaempgmysteeydlagftvgivdkkkivtgekieaghvliglassgihsngyslvr kvlledgeliygrlelplgeellkptkiyvkpilellknhevygmahitgggfieniprm lpegigaeielgswkiqpifsllqevgkleekemfnifnmgigmvvavkeedakdivrll eeqgetariigrtvqgagvtfn
>2btuB (B:) manaykqagvdieagyeavsrmkkhvqttmrkevlgglggfggmfdlskfaleepvlvsg tdgvgtklmlafmadkhdtigidavamcvndivvqgaeplffldyiacgkaepskieniv kgisegcrqagcaliggetaempgmysteeydlagftvgivdkkkivtgekieaghvlig lassgihsngyslvrkvlledgelsldriygrlelplgeellkptkiyvkpilellknhe vygmahitgggfieniprmlpegigaeielgswkiqpifsllqevgkleekemfnifnmg igmvvavkeedakdivrlleeqgetariigrtvqgagvtfnggkal
>2btuB (B:) ieagyeavsrmkkhvqttmrkevlgglggfggmfdleepvlvsgtdggtklmlafmadkh dtigidavamcvndivvqgaeplffldyiacgkaepskienivkgisegcrqagcaligg etaempgmyteeydlagftvgivdkkkivtgekieaghvliglassgihsngyslvrkvl ledgplgeellkptkiyvkpilellknhevygmahitgggfieniprmlpegigaeielg swkiqpifsllqevgkleekemfnifnmgigmvvavkeedakdivrlleeqgetariigr tvqgagv