observation_id	peptide	proforma	protein_accession	protein_name	measured_mz	charge	adduct	theoretical_mz	ppm_error	species	taxon_id	tissue	uberon_id	condition	doi	status	flags
1368	YSMVGGNLVINNPDK	YSM[Oxidation]VGGNLVINNPDK	P12960	Contactin-1	1636.7827148	1	H	1636.79993	-10.52	Mus musculus	10090	Brain	UBERON:0000955		10.1021/ac503952q	approved	reported_theoretical_differs