however , we have recently demonstrated that glu-58 is an important but not an essential residue for catalytic activity , using the methods of genetic engineering to change glu-58 to gln-58 etc [ nishikawa , s. , morioka , h. , fuchimura , k. , tanaka , t. , uesugi , s. , ohtsuka , e. , & ikehara , m. ( 1986 ) biochem . biophys . res . commun . 138 , 789-794 ] .
C0061472
glu
C0017797
gln