Ser168

Site Information
EPRLLAssPALPSSG SwissProt Entrez-Gene
Blast this site against: NCBI SwissProt PDB
Site Group ID: 483875

In vivo Characterization
Methods used to characterize site in vivo:	mass spectrometry ( 1 , 2 , 3 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 )
Disease tissue studied:	cervical cancer ( 8 ) , cervical adenocarcinoma ( 8 ) , lung cancer ( 3 ) , non-small cell lung adenocarcinoma ( 3 )
Relevant cell line - cell type - tissue:	293 (epithelial) ( 9 ) , HeLa (cervical) ( 1 , 2 , 5 , 7 , 10 , 13 , 14 , 15 ) , HeLa S3 (cervical) [PLK1 (human), knockdown, Tet-inducible PLK1 siRNA] ( 6 ) , HeLa S3 (cervical) ( 6 , 8 , 12 ) , Jurkat (T lymphocyte) ( 11 ) , K562 (erythroid) ( 5 ) , lung ( 3 )

Upstream Regulation
Regulatory protein:	PLK1 (human) ( 6 )
Treatments:	nocodazole ( 8 )

References
1	Huang H, et al. (2016) Simultaneous Enrichment of Cysteine-containing Peptides and Phosphopeptides Using a Cysteine-specific Phosphonate Adaptable Tag (CysPAT) in Combination with titanium dioxide (TiO2) Chromatography. Mol Cell Proteomics 15, 3282-3296 27281782 Curated Info
2	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
3	Schweppe DK, Rigas JR, Gerber SA (2013) Quantitative phosphoproteomic profiling of human non-small cell lung cancer tumors. J Proteomics 91, 286-96 23911959 Curated Info
4	Shiromizu T, et al. (2013) Identification of missing proteins in the neXtProt database and unregistered phosphopeptides in the PhosphoSitePlus database as part of the Chromosome-centric Human Proteome Project. J Proteome Res 12, 2414-21 23312004 Curated Info
5	Zhou H, et al. (2013) Toward a comprehensive characterization of a human cancer cell phosphoproteome. J Proteome Res 12, 260-71 23186163 Curated Info
6	Santamaria A, et al. (2011) The Plk1-dependent phosphoproteome of the early mitotic spindle. Mol Cell Proteomics 10, M110.004457 20860994 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	Olsen JV, et al. (2010) Quantitative phosphoproteomics reveals widespread full phosphorylation site occupancy during mitosis. Sci Signal 3, ra3 20068231 Curated Info
9	Gauci S, et al. (2009) Lys-N and trypsin cover complementary parts of the phosphoproteome in a refined SCX-based approach. Anal Chem 81, 4493-501 19413330 Curated Info
10	Chen RQ, et al. (2009) CDC25B mediates rapamycin-induced oncogenic responses in cancer cells. Cancer Res 69, 2663-8 19276368 Curated Info
11	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
12	Daub H, et al. (2008) Kinase-selective enrichment enables quantitative phosphoproteomics of the kinome across the cell cycle. Mol Cell 31, 438-48 18691976 Curated Info
13	Dephoure N, et al. (2008) A quantitative atlas of mitotic phosphorylation. Proc Natl Acad Sci U S A 105, 10762-7 18669648 Curated Info
14	Yu LR, et al. (2007) Improved titanium dioxide enrichment of phosphopeptides from HeLa cells and high confident phosphopeptide identification by cross-validation of MS/MS and MS/MS/MS spectra. J Proteome Res 6, 4150-62 17924679 Curated Info
15	Beausoleil SA, et al. (2006) A probability-based approach for high-throughput protein phosphorylation analysis and site localization. Nat Biotechnol 24, 1285-92 16964243 Curated Info