SUOX fold

Enzymes that belong to the sulfite oxidase family are comprised of the assim-ilatory eukaryotic nitrate reductases, bacterial YedY and the sulfite oxidizing enzymes. The latter are found in bacteria, plants, animals and humans, and are the primary focus of this section. A similar protein fold of the Mo domain, the so-called SUOX fold, characterizes these enzymes. The nature of the protein fold is one key factor that distinguishes SO family enzymes from the MOSC family proteins, which possess a very similar... 

MCD spectroscopy has been used to probe the excited state electronic structure of the electron transfer relevant [Mo -OH][Fe ] state of chicken SO and the Mo(v) resting state of YedY. YedY(MsrPQ) possesses the SUOX fold, and has recently been shown to be a periplasmic methionine sulfoxide reductase. Protein film voltammetry has been used to propose a mechanism for... 

---