Experiment ID	Name	Citation	Description	URL	PMID
1803	"UniprotKB MOD_RES Dec. 16, 2016"	SIB Swiss Institute of Bioinformatics Members. <b>Nucleic acids research</b>. 2016-January. Vol 44. D27-37.	"UniProtKB MOD_RES for all eukaryotes as of December 16, 2016"	http://www.uniprot.org/	
1575	dbPTM 3.0 experimentally verified PTM sites	"Lu CT,Huang KY,Su MG,Lee TY,Bretana NA,Chang WC,Chen YJ,Chen YJ,Huang HD. <b>Nucleic acids research</b>. 2012-December. Vol 41. D295-305."	dbPTM 3.0 downloaded 09/25/2014.  Experimentally verified PTM table.	http://dbptm.mbc.nctu.edu.tw/	23193290
1323	Phospho.ELM v9.0	"Dinkel H,Chica C,Via A,Gould CM,Jensen LJ,Gibson TJ,Diella F. <b>Nucleic acids research</b>. 2010-December. Vol 39. D261-7."	Release of Phospho.ELM v9.0	http://phospho.elm.eu.org/	21062810
1395	HPRD: Human Protein Reference Database Curated Modifications	"Keshava Prasad TS,Goel R,Kandasamy K,Keerthikumar S,Kumar S,Mathivanan S,Telikicherla D,Raju R,Shafreen B,Venugopal A,Balakrishnan L,Marimuthu A,Banerjee S,Somanathan DS,Sebastian A,Rani S,Ray S,Harrys Kishore CJ,Kanth S,Ahmed M,Kashyap MK,Mohmood R,Ramachandra YL,Krishna V,Rahiman BA,Mohan S,Ranganathan P,Ramabadran S,Chaerkady R,Pandey A. <b>Nucleic acids research</b>. 2008-December. Vol 37. D767-72."	July 2010 download of HPRD's modification table.	http://hprd.org/	18988627
1790	PhosphositePlus November 2016	"Hornbeck PV,Zhang B,Murray B,Kornhauser JM,Latham V,Skrzypek E. <b>Nucleic acids research</b>. 2015-January. Vol 43. D512-20."	Phosphorylation; Methylation; Acetylation; Ubiquitination; Sumoylation; O-GlcNAc	http://www.phosphosite.org/homeAction.action	25514926