1.3.1.33 additional information the reaction is completely insensitive to illumination (5-20 w/m2 tungsten light) 2 1.3.1.33 Hg2+ inhibitor causes seripous alterations of the enzyme structure resulting in the trans-localisation of NADPH within the active site pf POR 33 1.3.1.33 Hg2+ depending on concentration it can react with any component of the NADPH:PChlide oxidoreductase macrodomains 33 1.3.1.33 N-ethylmaleimide inhibits the regeneration of the enzyme-substrates complex, but has no effect on the photoconversion of the preformed complex 49 1.3.1.33 N-ethylmaleimide - 49 1.3.1.33 cyanide - 118 1.3.1.33 EGTA the enzyme activity is abolished in the presence of 10 mM EGTA 173 1.3.1.33 PMSF - 248 1.3.1.33 nicotinamide inhibits DPOR activity by blocking the electron transfer from the L-protein to the NB-protein subunit 267 1.3.1.33 protochlorophyllide - 1243 1.3.1.33 2',5'-ADP competitive inhibition of NADPH binding 1962 1.3.1.33 5,5'-dithiobis-(2-nitrobenzoic acid) inhibits the regeneration of the enzyme-substrates complex, but has no effect on the photoconversion of the preformed complex 2053 1.3.1.33 chlorophyll c1 competitive 122964