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Einige Lebensmittel enthalten natrlicherweise Glutathion, das den Glutathion-Stoffwechsel im Krper untersttzen kann

It brightens and evens skin tone, reducing dark spots and hyperpigmentation

The analysis of the optimized structures of the MichaelisMenten complex indicate that the polar residues at position 13 (Cys or Ser) stabilize the deprotonated GS , which in turn acts as the catalytic Brnsted base and abstracts the proton at position C2 of substrate 7 (Extended Data Fig

doi: 10.1016/j.wneu.2021.05.098 199 LiuTZhuCChenXGuanGZouCShenSet al

Assuming you followed the above advice and used an appropriate binding buffer and your protein isnt huge, then a likely reason for this is that the expression yield is much lower than you expected

The proteome concentration of the tissue lysates was determined using the DC protein assay (Bio-Rad), normalized to 2 mg/mL, and then 100 L of each sample was transferred to a LoBind Eppendorf tube containing 48 mg of urea