Ser303

Site Information
GQGRsPGsGsQssGW SwissProt Entrez-Gene
Blast this site against: NCBI SwissProt PDB
Site Group ID: 3194834

In vivo Characterization
Methods used to characterize site in vivo:	mass spectrometry ( 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 )
Disease tissue studied:	hepatocellular carcinoma, surrounding tissue ( 8 )
Relevant cell line - cell type - tissue:	HeLa (cervical) ( 1 , 3 , 4 , 5 , 6 , 7 , 10 , 11 ) , hepatocyte-liver ( 8 ) , Jurkat (T lymphocyte) ( 9 ) , liver ( 2 )

References
1	Sharma K, et al. (2014) Ultradeep human phosphoproteome reveals a distinct regulatory nature of Tyr and Ser/Thr-based signaling. Cell Rep 8, 1583-94 25159151 Curated Info
2	Bian Y, et al. (2014) An enzyme assisted RP-RPLC approach for in-depth analysis of human liver phosphoproteome. J Proteomics 96, 253-62 24275569 Curated Info
3	Zhou J (2011) CST Curation Set: 11707; Year: 2011; Biosample/Treatment: cell line, HeLa/UV; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[ST]Q Antibodies Used to Purify Peptides prior to LCMS: Phospho-(Ser/Thr) ATM/ATR Substrate (S/TQG) (P-S/T2-100) Rabbit mAb Cat#: 6966, PTMScan(R) Phospho-ATM/ATR Substrate Motif (S/TQG) Immunoaffinity Beads Cat#: 6969 Curated Info
4	Zhou J (2011) CST Curation Set: 11708; Year: 2011; Biosample/Treatment: cell line, HeLa/UV; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[ST]Q Antibodies Used to Purify Peptides prior to LCMS: Phospho-(Ser/Thr) ATM/ATR Substrate (S/TQG) (P-S/T2-100) Rabbit mAb Cat#: 6966, PTMScan(R) Phospho-ATM/ATR Substrate Motif (S/TQG) Immunoaffinity Beads Cat#: 6969 Curated Info
5	Zhou J (2011) CST Curation Set: 11709; Year: 2011; Biosample/Treatment: cell line, HeLa/UV; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[ST]Q Antibodies Used to Purify Peptides prior to LCMS: Phospho-ATM/ATR Substrate (SQ) (D23H2/D69H5) Rabbit mAb Cat#: 9607, PTMScan(R) Phospho-ATM/ATR Substrate (SQ) Immunoaffinity Beads Cat#: 9884 Curated Info
6	Zhou J (2011) CST Curation Set: 11710; Year: 2011; Biosample/Treatment: cell line, HeLa/UV; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[ST]Q Antibodies Used to Purify Peptides prior to LCMS: Phospho-ATM/ATR Substrate (SQ) (D23H2/D69H5) Rabbit mAb Cat#: 9607, PTMScan(R) Phospho-ATM/ATR Substrate (SQ) Immunoaffinity Beads Cat#: 9884 Curated Info
7	Kettenbach AN, et al. (2011) Quantitative phosphoproteomics identifies substrates and functional modules of aurora and polo-like kinase activities in mitotic cells. Sci Signal 4, rs5 21712546 Curated Info
8	Han G, et al. (2010) Phosphoproteome analysis of human liver tissue by long-gradient nanoflow LC coupled with multiple stage MS analysis. Electrophoresis 31, 1080-9 20166139 Curated Info
9	Mayya V, et al. (2009) Quantitative phosphoproteomic analysis of T cell receptor signaling reveals system-wide modulation of protein-protein interactions. Sci Signal 2, ra46 19690332 Curated Info
10	Zhou J (2008) CST Curation Set: 4707; Year: 2008; Biosample/Treatment: cell line, HeLa/UV; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[ST]Q Antibodies Used to Purify Peptides prior to LCMS: Phospho(Ser/Thr) ATM/ATR Substrate Antibody (polyAB) Cat#: 3005, PTMScan(R) Phospho-ATM/ATR Substrate Motif (pS/pTQ) Immunoaffinity Beads Cat#: 1980 Curated Info
11	Ruse CI, et al. (2008) Motif-specific sampling of phosphoproteomes. J Proteome Res 7, 2140-50 18452278 Curated Info