Thr208

Site Information
PLKGRAktPVtLkQR SwissProt Entrez-Gene
Blast this site against: NCBI SwissProt PDB
Site Group ID: 3190324

In vivo Characterization
Methods used to characterize site in vivo:	mass spectrometry ( 1 , 2 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 14 , 15 , 16 , 17 , 18 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 )
Disease tissue studied:	breast cancer ( 7 , 8 , 16 , 17 ) , breast ductal carcinoma ( 7 ) , HER2 positive breast cancer ( 2 ) , luminal A breast cancer ( 2 ) , luminal B breast cancer ( 2 ) , breast cancer, surrounding tissue ( 2 ) , breast cancer, triple negative ( 2 , 7 ) , cervical cancer ( 42 ) , cervical adenocarcinoma ( 42 ) , leukemia ( 25 ) , acute monoblastic leukemia (M5a) or acute monocytic leukemia (M5b) ( 15 ) , acute myeloblastic leukemia, without maturation (M1) ( 15 ) , T cell leukemia ( 25 ) , lung cancer ( 10 ) , non-small cell lung adenocarcinoma ( 10 ) , B cell lymphoma ( 15 ) , non-Hodgkin's lymphoma ( 15 ) , ovarian cancer ( 7 ) , multiple myeloma ( 15 ) , melanoma skin cancer ( 5 )
Relevant cell line - cell type - tissue:	293 (epithelial) [AT1 (human), transfection, AT1R stable transfected HEK293] ( 34 ) , 293 (epithelial) [AT1 (human), transfection] ( 32 ) , 293 (epithelial) ( 36 , 37 ) , 786-O (renal) [VHL (human), transfection] ( 4 ) , 786-O (renal) ( 4 ) , A498 (renal) ( 38 ) , A549 (pulmonary) ( 11 ) , breast ( 2 , 7 ) , BT-20 (breast cell) ( 17 ) , BT-549 (breast cell) ( 17 ) , CTS (myeloid) ( 15 ) , DOHH2 ('B lymphocyte, precursor') ( 15 ) , endothelial-aorta ( 18 ) , HeLa (cervical) ( 1 , 6 , 14 , 26 , 31 , 59 , 61 , 62 ) , HeLa S3 (cervical) ( 29 , 42 ) , HeLa_Meta (cervical) ( 35 ) , HeLa_Pro (cervical) ( 35 ) , HeLa_Telo (cervical) ( 35 ) , HepG2 (hepatic) ( 46 , 47 , 53 , 54 ) , HMLER ('stem, breast cancer') [CXCR4 (human), knockdown] ( 8 ) , HMLER ('stem, breast cancer') ( 8 ) , HUES-9 ('stem, embryonic') ( 30 ) , Jurkat (T lymphocyte) ( 12 , 20 , 21 , 22 , 23 , 24 , 27 , 28 , 33 , 39 , 40 , 41 , 43 , 55 , 56 , 57 , 58 , 60 ) , K562 (erythroid) ( 14 ) , Kit225 (T lymphocyte) ( 25 ) , lung ( 10 ) , MDA-MB-231 (breast cell) ( 17 ) , MDA-MB-468 (breast cell) ( 17 ) , MV4-11 (macrophage) ( 15 ) , NCI-H2228 (pulmonary) ( 51 , 52 ) , NCI-H3255 (pulmonary) ( 45 , 48 , 49 , 50 ) , OPM-2 (plasma cell) ( 15 ) , ovary ( 7 ) , P31/FUJ (erythroid) ( 15 ) , RL ('B lymphocyte, precursor') ( 15 ) , RPMI-8266 (plasma cell) ( 15 ) , SEM (B lymphocyte) ( 44 ) , SH-SY5Y (neural crest) [LRRK2 (human), transfection, over-expression of LRRK2(G2019S)] ( 9 ) , SH-SY5Y (neural crest) ( 9 ) , SKBr3 (breast cell) ( 16 ) , SU-DHL-6 (B lymphocyte) ( 15 ) , U266 (plasma cell) ( 15 ) , WM239A (melanocyte) ( 5 )

Upstream Regulation
Treatments:	BI_4834 ( 26 ) , EGF ( 1 ) , ischemia ( 7 ) , MG132_withdrawal ( 35 ) , nocodazole ( 42 )

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	Mertins P, et al. (2016) Proteogenomics connects somatic mutations to signalling in breast cancer. Nature 534, 55-62 27251275 Curated Info
3	Boeing S, et al. (2016) Multiomic Analysis of the UV-Induced DNA Damage Response. Cell Rep 15, 1597-1610 27184836 Curated Info
4	Malec V, Coulson JM, Urbé S, Clague MJ (2015) Combined Analyses of the VHL and Hypoxia Signaling Axes in an Isogenic Pairing of Renal Clear Cell Carcinoma Cells. J Proteome Res 14, 5263-72 26506913 Curated Info
5	Stuart SA, et al. (2015) A Phosphoproteomic Comparison of B-RAFV600E and MKK1/2 Inhibitors in Melanoma Cells. Mol Cell Proteomics 14, 1599-615 25850435 Curated Info
6	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
7	Mertins P, et al. (2014) Ischemia in tumors induces early and sustained phosphorylation changes in stress kinase pathways but does not affect global protein levels. Mol Cell Proteomics 13, 1690-704 24719451 Curated Info
8	Yi T, et al. (2014) Quantitative phosphoproteomic analysis reveals system-wide signaling pathways downstream of SDF-1/CXCR4 in breast cancer stem cells. Proc Natl Acad Sci U S A 111, E2182-90 24782546 Curated Info
9	Luerman GC, et al. (2014) Phosphoproteomic evaluation of pharmacological inhibition of leucine-rich repeat kinase 2 reveals significant off-target effects of LRRK-2-IN-1. J Neurochem 128, 561-76 24117733 Curated Info
10	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
11	Kim JY, et al. (2013) Dissection of TBK1 signaling via phosphoproteomics in lung cancer cells. Proc Natl Acad Sci U S A 110, 12414-9 23836654 Curated Info
12	Mertins P, et al. (2013) Integrated proteomic analysis of post-translational modifications by serial enrichment. Nat Methods 10, 634-7 23749302 Curated Info
13	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
14	Zhou H, et al. (2013) Toward a comprehensive characterization of a human cancer cell phosphoproteome. J Proteome Res 12, 260-71 23186163 Curated Info
15	Casado P, et al. (2013) Phosphoproteomics data classify hematological cancer cell lines according to tumor type and sensitivity to kinase inhibitors. Genome Biol 14, R37 23628362 Curated Info
16	Imami K, et al. (2012) Temporal profiling of lapatinib-suppressed phosphorylation signals in EGFR/HER2 pathways. Mol Cell Proteomics 11, 1741-57 22964224 Curated Info
17	Klammer M, et al. (2012) Phosphosignature predicts dasatinib response in non-small cell lung cancer. Mol Cell Proteomics 11, 651-68 22617229 Curated Info
18	Verano-Braga T, et al. (2012) Time-resolved quantitative phosphoproteomics: new insights into Angiotensin-(1-7) signaling networks in human endothelial cells. J Proteome Res 11, 3370-81 22497526 Curated Info
19	Beli P, et al. (2012) Proteomic Investigations Reveal a Role for RNA Processing Factor THRAP3 in the DNA Damage Response. Mol Cell 46, 212-25 22424773 Curated Info
20	Mulhern D (2012) CST Curation Set: 13827; Year: 2012; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XpSX(K/R) Curated Info
21	Mulhern D (2012) CST Curation Set: 13828; Year: 2012; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XpSX(K/R) Curated Info
22	Mulhern D (2012) CST Curation Set: 13829; Year: 2012; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XpSX(K/R) Curated Info
23	Mulhern D (2012) CST Curation Set: 13830; Year: 2012; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XpSX(K/R) Curated Info
24	Mulhern D (2012) CST Curation Set: 13831; Year: 2012; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XpSX(K/R)Antibodies Used to Purify Peptides prior to LCMS: Phospho-(Ser) PKC Substrate (P-S3-101) Rabbit mAb Cat#: 6967, PTMScan(R) Phospho-PKC Substrate Motif (K/RXS*XK/R) Immunoaffinity Beads Cat#: 6970 Curated Info
25	Osinalde N, et al. (2011) Interleukin-2 signaling pathway analysis by quantitative phosphoproteomics. J Proteomics 75, 177-91 21722762 Curated Info
26	Grosstessner-Hain K, et al. (2011) Quantitative phospho-proteomics to investigate the polo-like kinase 1-dependent phospho-proteome. Mol Cell Proteomics 10, M111.008540 21857030 Curated Info
27	Guo A (2011) CST Curation Set: 12435; Year: 2011; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[ST]P Curated Info
28	Guo A (2011) CST Curation Set: 12064; Year: 2011; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: pTXR Antibodies Used to Purify Peptides prior to LCMS: Phospho-Threonine-X-Arginine Antibody Cat#: 2351, PTMScan(R) Phospho-Thr-X-Arg Motif (T*XR) Immunoaffinity Beads Cat#: 1988 Curated Info
29	Santamaria A, et al. (2011) The Plk1-dependent phosphoproteome of the early mitotic spindle. Mol Cell Proteomics 10, M110.004457 20860994 Curated Info
30	Rigbolt KT, et al. (2011) System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation. Sci Signal 4, rs3 21406692 Curated Info
31	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
32	Xiao K, et al. (2010) Global phosphorylation analysis of beta-arrestin-mediated signaling downstream of a seven transmembrane receptor (7TMR). Proc Natl Acad Sci U S A 107, 15299-304 20686112 Curated Info
33	Possemato A (2010) CST Curation Set: 10139; Year: 2010; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
34	Christensen GL, et al. (2010) Quantitative phosphoproteomics dissection of seven-transmembrane receptor signaling using full and biased agonists. Mol Cell Proteomics 9, 1540-53 20363803 Curated Info
35	Dulla K, et al. (2010) Quantitative site-specific phosphorylation dynamics of human protein kinases during mitotic progression. Mol Cell Proteomics 9, 1167-81 20097925 Curated Info
36	Guo A (2010) CST Curation Set: 6270; Year: 2010; Biosample/Treatment: cell line, 293/rapamycin; Disease: -; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
37	Guo A (2010) CST Curation Set: 6271; Year: 2010; Biosample/Treatment: cell line, 293/mTOR inhibitor; Disease: -; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
38	Schreiber TB, et al. (2010) An integrated phosphoproteomics work flow reveals extensive network regulation in early lysophosphatidic acid signaling. Mol Cell Proteomics 9, 1047-62 20071362 Curated Info
39	Possemato A (2010) CST Curation Set: 9723; Year: 2010; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XpSX(K/R) Curated Info
40	Possemato A (2010) CST Curation Set: 9438; Year: 2010; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[ST]P Curated Info
41	Possemato A (2010) CST Curation Set: 9157; Year: 2010; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
42	Olsen JV, et al. (2010) Quantitative phosphoproteomics reveals widespread full phosphorylation site occupancy during mitosis. Sci Signal 3, ra3 20068231 Curated Info
43	Possemato A (2009) CST Curation Set: 8351; Year: 2009; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
44	Gu T (2009) CST Curation Set: 7657; Year: 2009; Biosample/Treatment: cell line, SEM/untreated; Disease: acute lymphocytic leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
45	Possemato A (2009) CST Curation Set: 7406; Year: 2009; Biosample/Treatment: cell line, NCI-H3255/untreated; Disease: non-small cell lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
46	Possemato A (2009) CST Curation Set: 7401; Year: 2009; Biosample/Treatment: cell line, HepG2/untreated; Disease: hepatocellular carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
47	Possemato A (2009) CST Curation Set: 7402; Year: 2009; Biosample/Treatment: cell line, HepG2/untreated; Disease: hepatocellular carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
48	Possemato A (2009) CST Curation Set: 7405; Year: 2009; Biosample/Treatment: cell line, NCI-H3255/untreated; Disease: non-small cell lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
49	Possemato A (2009) CST Curation Set: 7316; Year: 2009; Biosample/Treatment: cell line, NCI-H3255/-; Disease: non-small cell lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
50	Possemato A (2009) CST Curation Set: 7317; Year: 2009; Biosample/Treatment: cell line, NCI-H3255/-; Disease: non-small cell lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
51	Possemato A (2009) CST Curation Set: 7315; Year: 2009; Biosample/Treatment: cell line, NCI-H2228/-; Disease: non-small cell lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
52	Possemato A (2009) CST Curation Set: 7314; Year: 2009; Biosample/Treatment: cell line, NCI-H2228/-; Disease: non-small cell lung cancer; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
53	Possemato A (2009) CST Curation Set: 7313; Year: 2009; Biosample/Treatment: cell line, HepG2/-; Disease: hepatocellular carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
54	Possemato A (2009) CST Curation Set: 7312; Year: 2009; Biosample/Treatment: cell line, HepG2/-; Disease: hepatocellular carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
55	Zhou J (2009) CST Curation Set: 6052; Year: 2009; Biosample/Treatment: cell line, Jurkat/untreated; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (F/Y/M)Xp[ST](L/I/M) Curated Info
56	Zhou J (2009) CST Curation Set: 6054; Year: 2009; Biosample/Treatment: cell line, Jurkat/TPA; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (F/Y/M)Xp[ST](L/I/M) Curated Info
57	Zhou J (2009) CST Curation Set: 6053; Year: 2009; Biosample/Treatment: cell line, Jurkat/TPA; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (F/Y/M)Xp[ST](L/I/M) Curated Info
58	Possemato A (2008) CST Curation Set: 5276; Year: 2008; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: p[ST]P Curated Info
59	Dephoure N, et al. (2008) A quantitative atlas of mitotic phosphorylation. Proc Natl Acad Sci U S A 105, 10762-7 18669648 Curated Info
60	Possemato A (2008) CST Curation Set: 4737; Year: 2008; Biosample/Treatment: cell line, Jurkat/calyculin_A & pervanadate; Disease: T cell leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: (K/R)XX[ST] Curated Info
61	McNulty DE, Annan RS (2008) Hydrophilic interaction chromatography reduces the complexity of the phosphoproteome and improves global phosphopeptide isolation and detection. Mol Cell Proteomics 7, 971-80 18212344 Curated Info
62	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