Fig. 1
From: A region-resolved mucosa proteome of the human stomach

A brief summary of proteomic analysis of human gastric mucosa. a Illustration of sample collection, preparation, and LC–MS/MS. Human mucosa tissue samples were collected from seven antonymic stomach regions by gastro-endoscope. Mucosa tissues were in-solution digested with trypsin, and the resulting peptides were separated by sRP-RP prior to LC–MS/MS analysis. b A total of 13,401 GPs were identified in all 82 samples at 1% peptide-level FDR. Further screening generated 6258 high-confidence proteins that were detected with at least one unique peptide and two strict peptides in a minimum of two samples in one region. Light gray displays the number of GPs before filtering; dark gray shows the number of GPs after filtering. c The dynamic ranges of mucosa proteomes and several high- and low-abundant gastric proteins