Chains and heterogens:
PDB Chain Sequences:
>1tkuA (A:) mtniftpieealeaykngeflivmddedrenegdlimaaelitqekmaflvryssgyvcv plseeranqlelppmlanrsdrhgtaytitcdfaegtttgisahdralttrslanpnskp qdfikpghilplravpgllkkrrghteaavqlstlaglqpagvicelvrdedglmmrldd ciqfgkkhgikiininqlveyisk
>1tkuA (A:) niftpieealeaykngeflivmddedrenegdlimaaelitqekmaflvryssgyvcvpl seeranqlelppmlagtaytitcdfaegtttgisahdralttrslanpnskpqdfikpgh ilplravpgllkkrrghteaavqlstlaglqpagvicelvrdedglmmrlddciqfgkkh gikiininqlveyisk
>1tkuB (B:) mtniftpieealeaykngeflivmddedrenegdlimaaelitqekmaflvryssgyvcv plseeranqlelppmlanrsdrhgtaytitcdfaegtttgisahdralttrslanpnskp qdfikpghilplravpgllkkrrghteaavqlstlaglqpagvicelvrdedglmmrldd ciqfgkkhgikiininqlveyisk
>1tkuB (B:) niftpieealeaykngeflivmddedrenegdlimaaelitqekmaflvryssgyvcvpl seeranqlelppmlagtaytitcdfaegtttgisahdralttrslanpnskpqdfikpgh ilplravpgllkkrrghteaavqlstlaglqpagvicelvrdedglmmrlddciqfgkkh gikiininqlveyisk