>1tkuB (B:) SEQRES residues mtniftpieealeaykngeflivmddedrenegdlimaaelitqekmaflvryssgyvcv plseeranqlelppmlanrsdrhgtaytitcdfaegtttgisahdralttrslanpnskp qdfikpghilplravpgllkkrrghteaavqlstlaglqpagvicelvrdedglmmrldd ciqfgkkhgikiininqlveyisk