>1b3qA (A:) observed residues (from ATOM records) sqtvrvdiekldnlmdlmgelviarsriletlkkynikeldeslshlsritldlqnvvmk irmvpisfvfnrfprmvrdlakkmnkevnfimrgedteldrtfveeigepllhllrnaid hgiepkeeriakgkppigtlilsarhegnnvvieveddgrgidkekiirkaiekglides kaatlsdqeilnflfvpgfsgvgmdvvknvveslngsmgiesekdkgtkvtirlpltlai icallvkvnnlvyaipianidtilsiskediqrvqdrdvivirgevipvyrlwevlqieh keeleemeavivrvgnrkygivvddllgqddivikslgkvfsevkefsgaailgdgsial iinvsgiv