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. 2023 Dec 20;23(1):161–174. doi: 10.1021/acs.jproteome.3c00513

Table 2. Peptides Containing NH3 Loss on Gln and Their Mobile Protons.

peptide sequence positions modification site confidence charge state neutral amino acids mobile protons average % abundancea
QERLKEDTSFGGNLGRAVF 100–118 NH3 loss Q100 100 3 R102, K104, R115 0 74.64%
QERLKEDTSF 100–109 NH3 loss Q100 100 2 R102, K104 0
QAKKRVLEPLGL 119–130 NH3 loss Q119 100 3 K121, K122, R123 0 73.38%
QAKKRVLEPLGL 119–130 NH3 loss Q119 100 2 K121, K122, R123 0
QDRDVYLQGPIW 606–617 NH3 loss Q606 100 2 R608 1 5.44%
QDRDVYL 606–612 NH3 loss Q606 100 2 R608 1
a

The average % abundance is that of the modification present for all peptides containing the amino acid where the modification occurs. It is calculated in Biopharma Finder for each file processed and then the values for each file were averaged.