Proteomic Profiling of the Human Tissue and Biological Fluid Proteome

Here, we performed label-free liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) to profile the normal human proteome. In total, we analyzed 117 samples from 46 histologically normal tissues and organs at autopsy. Our high-resolution MS approach allowed for the quantification of 10,438 unique proteins. In order to expand our coverage of the human proteome, we combined our previously published biological fluid proteomic data from healthy individuals. We considered data from seven biological fluids, including urine, cerebrospinal fluid, synovial fluid, seminal plasma, sweat, cervical vaginal fluid, and nipple aspirate fluid. Overall, we generated tandem mass spectra corresponding to 13,028 unique human protein-coding genes.