VPRΔC _ N3P/I5P, a combined mutant containing two of the three mutations, which had significantly increased the stability against temperature denaturation without a decrease of catalytic activity and VPRΔC _ T 265P which had no discernible change in thermal stability or catalytic activity.
Annarsvegar VPRΔC _ N3P/I5P, sem olli mikilli aukningu í stöðugleika gegn hitaafmyndun, og engin áhrif á virkni og hins vegar VPRΔC _ T 265P sem olli engri marktækri stöðugleikaaukningu né virknitapi.