Project description:Observational, Multicenter, Post-market, Minimal risk, Prospective data collection of PillCam SB3 videos (including PillCam reports) and raw data files and optional collection of Eneteroscopy reports
Project description:This project explores dietary proteins in human dental calculus through shotgun proteomics. These files are in addition to those accidentally not included in the original publication, Dairying enabled Early Bronze Age Yamnaya steppe expansions . DOI https://doi.org/10.1038/s41586-021-03798-4. Files include raw, mgf, and mzid files from the two Botai individuals: DA092 (Botai 2A), DA089 (CII(3) 30-40), and additional files from Russian sites: DA431, DA431 (Lebyazhinka 5, LEB N-0), Z333 (Khvalynsk 2, KHA2 N-12), and Z444 (Murziha 2, MUR2 N-128) as well as the blanks used in the experiments. It also inlcludes the corresponding files for DA436, as in the previous upload an under-injected sample was included as the MDF.
Project description:A novel one-dimensional on-line pH gradient-eluted strong cation exchange (SCX)-nano-ESI-MS/MS method was developed for protein identification and tested with mixture of six standard proteins, total lysate of HuH7 and N2a cells, as well as membrane fraction of N2a cells. This method utilized an on-line nano-flow SCX column in a nano-LC system coupled with a nano-electrospray high-resolution mass spectrometer. Protein digests were separated on a nano-flow SCX column with a pH gradient and directly introduced into a mass spectrometer through nano-electrospray ionization. SCXLC-MS/MS showed identification capability for higher proportion of basic peptides compared to RPLC-MS/MS method, especially for histidine-containing peptides. Our SCXLC-MS/MS method is an excellent alternative method to the RPLC-MS/MS method for analysis of standard proteins, total cell and membrane proteomes.