1.11.1.1 C42A mutation leads to an almost inactive enzyme -, 395346 1.11.1.1 C42A tertial structure very similar to wild type enzyme 395345 1.11.1.1 C42S mutation leads to an almost inactive enzyme -, 395346 1.11.1.1 C42S tertial structure very similar to wild type enzyme 395345 1.11.1.1 H10Q lower Km for H2O2 395344 1.11.1.1 R303M significant conformational change, lower Km and kcat 395344