CysQuant
CysQuant
CysQuant is a new method for accurately measuring the oxidation levels of cysteine residues in proteins, which is crucial for understanding protein function in redox regulation. It utilizes isotopologues of iodoacetamide to label differentially reduced and reversibly oxidized cysteines, analyzed through data-dependent acquisition (DDA) or data-independent acquisition mass spectrometry (DIA-MS).