native top-down MS data of human protamines collected on orbitrap fusion lumos. Samples were collected from different patient populations, namely normal, asthenozoospermia, and oliogoasthenozoospermia
Glycosylation is one of the most important protein modifications in biological systems. It plays a critical role in protein folding, trafficking, and stability as well as cellular events such as immun
More than half of the mass spectra could not be identified in most proteome mass spectrometry experiments. Various modifications have been considered as a major reason. Open search strategy was then i