Which of the following best describes the principle of 'accurate mass and retention time (AMRT) alignment' in label-free quantitative proteomics?
Question 2
In the context of mass spectrometry-based proteomics, what is the primary role of a 'charge deconvolution' algorithm?
Question 3
Which of the following best describes the concept of 'proteoform' in advanced proteomics?
Question 4
A researcher is analyzing a peptide with the sequence 'R.GATSL.K' (where R and K are trypsin cleavage sites). If this peptide is fragmented using electron capture dissociation (ECD), which of the following ion types would be predominantly observed, providing complementary information to CID?
Question 5
In a quantitative proteomics experiment using isobaric tags (e.g., TMT), what is the expected outcome for the precursor ion mass-to-charge ratio ($m/z$) of a peptide labeled with different tags but present in equimolar amounts across samples?
