the apparent formation constants of the sigma-complex ( m ) with enzyme-bound gsh ( e.gs- + tnb in equilibrium e.m ) at ph 7.5 are 5 x 10 ( 4 ) m-1 and 7 x 10 ( 2 ) m-1 for isoenzymes 3-3 and 4-4 , respectively .
C0014442
enzyme
C0022173
isoenzymes