Subject area	Biology
More specific subject area	Characterization of the proteome of the colon mucosa of ulcerative colitis patients, gastrointestinal healthy rheumatoid arthritis patients, and controls.
Type of data	Raw- mass spectrometry files and text/excel files
How data was acquired	Mass Spectrometry Liquid Chromatography
	Data was acquired using a high-resolution/high-accuracy Q Exactive plus (Thermo Scientific) mass spectrometer.
Data format	Raw- and analyzed data.
Experimental factors	Human colon mucosal biopsies from ulcerative colitis patients, gastrointestinal healthy rheumatoid arthritis patients, and controls.
Experimental features	Biopsies were extracted by colonoscopy and immediately snap-frozen with liquid nitrogen. The biopsies were tryptic digested and analyzed by electrospray ionization liquid chromatography mass spectrometry.
Data source location	The Laboratory for Medical Mass Spectrometry, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7E, 9220 Aalborg East, Denmark
Data accessibility	The proteomics data have been deposited to the ProteomeXchange Consortium via the PRIDE partner repository, [13], [14], [15], [16] with dataset identifiers:
	PXD001608 – Ulcerative colitis patients, and controls.
	PXD003082 – Gastrointestinal healthy rheumatoid arthritis patients.
	Direct download links: http://www.ebi.ac.uk/pride/archive/projects/PXD001608
	http://www.ebi.ac.uk/pride/archive/projects/PXD003082