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Rescue of K12G Triosephosphate Isomerase by Ammonium Cations: The Reaction of an Enzyme in Pieces

The K12G mutation at yeast triosephosphate isomerase (TIM) results in a 5.5 × 10(5)-fold decrease in k(cat)/K(m) for isomerization of glyceraldehyde 3-phosphate, and the activity of this mutant can be successfully “rescued” by NH(4)(+) and primary alkylammonium cations. The transition state for the...

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Autori principali: Go, Maybelle K., Amyes, Tina L., Richard, John P.
Natura: Artigo
Lingua:Inglês
Pubblicazione: 2010
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Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC2945285/
https://ncbi.nlm.nih.gov/pubmed/20822141
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1021/ja106104h
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