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Structural Biochemistry/Glutaredoxins
Glutaredoxins are known as proteins that undergo redox reactions. They are important for assembling iron-sulfur clusters and biosynthesizing haem (a red pigment that has ferrous iron). These functions have contributed to the binding of Glutaredoxins to labile, which is sent to protein receptors. Glutaredoxins are also important for tracking iron within cells and the production of iron-sulfur clusters; this process is done through scaffold proteins by producing new iron-sulfur clusters within the old form and carrier proteins by transferring already made iron-sulfur clusters. Recent studies have shown that the iron regulation in yeast has led to a speculation that binding glutaredoxins to specific partners contributes to creating metalloproteins.