Ser144

Site Information
PLHVRRssDPALIGL SwissProt Entrez-Gene
Blast this site against: NCBI SwissProt PDB
Site Group ID: 455668

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 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ) , mutation of modification site ( 4 , 36 ) , phospho-antibody ( 4 ) , western blotting ( 4 )
Disease tissue studied:	gastric cancer ( 6 , 8 , 9 , 10 , 11 , 12 ) , gastric carcinoma ( 6 , 8 , 9 , 10 , 11 , 12 ) , leukemia ( 16 , 17 ) , chronic myelogenous leukemia ( 16 , 17 ) , lung cancer ( 14 )
Relevant cell line - cell type - tissue:	293 (epithelial) ( 36 ) , 293E (epithelial) ( 7 ) , CL1-0 (pulmonary) ( 14 ) , CL1-1 (pulmonary) ( 14 ) , CL1-2 (pulmonary) ( 14 ) , CL1-5 (pulmonary) ( 14 ) , HeLa (cervical) ( 2 , 5 , 13 , 21 , 22 , 23 , 24 , 33 , 34 , 35 ) , Jurkat (T lymphocyte) ( 15 , 18 , 19 , 20 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ) , K562 (erythroid) ( 3 , 16 , 17 ) , MDCK (epithelial) ( 36 ) , MDCKII (epithelial) ( 4 ) , MKN-45 (gastric) ( 6 , 8 , 9 , 10 , 11 , 12 ) , Vero E6-S ('epithelial, kidney') ( 1 )

Upstream Regulation
Regulatory protein:	GAB1 (human) ( 4 )
Putative in vivo kinases:	MARK2 (human) ( 4 )
Treatments:	metastatic potential ( 14 ) , Y27632 ( 5 )

Downstream Regulation
Effects of modification on PAR3-alpha:	molecular association, regulation ( 4 , 36 )
Effects of modification on biological processes:	cytoskeletal reorganization ( 36 )
Induce interaction with:	14-3-3 zeta (human) ( 36 )
Inhibit interaction with:	GAB1 (human) ( 4 )

References
1	Bouhaddou M, et al. (2020) The Global Phosphorylation Landscape of SARS-CoV-2 Infection. Cell 182 32645325 Curated Info
2	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
3	Zhou H, et al. (2013) Toward a comprehensive characterization of a human cancer cell phosphoproteome. J Proteome Res 12, 260-71 23186163 Curated Info
4	Yang Z, et al. (2012) The signaling adaptor gab1 regulates cell polarity by acting as a par protein scaffold. Mol Cell 47, 469-83 22883624 Curated Info
5	Nishioka T, Nakayama M, Amano M, Kaibuchi K (2012) Proteomic screening for Rho-kinase substrates by combining kinase and phosphatase inhibitors with 14-3-3ζ affinity chromatography. Cell Struct Funct 37, 39-48 22251793 Curated Info
6	Moritz A (2011) CST Curation Set: 12513; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
7	Hsu PP, et al. (2011) The mTOR-regulated phosphoproteome reveals a mechanism of mTORC1-mediated inhibition of growth factor signaling. Science 332, 1317-22 21659604 Curated Info
8	Moritz A (2011) CST Curation Set: 11933; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
9	Moritz A (2011) CST Curation Set: 11934; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
10	Moritz A (2011) CST Curation Set: 11937; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
11	Moritz A (2011) CST Curation Set: 11940; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
12	Moritz A (2011) CST Curation Set: 11943; Year: 2011; Biosample/Treatment: cell line, MKN-45/untreated; Disease: gastric carcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
13	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
14	Wang YT, et al. (2010) An informatics-assisted label-free quantitation strategy that depicts phosphoproteomic profiles in lung cancer cell invasion. J Proteome Res 9, 5582-97 20815410 Curated Info
15	Possemato A (2010) CST Curation Set: 10734; 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] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (81E12B5) Rabbit mAb Cat#: 10003 Curated Info
16	Beausoleil S (2010) CST Curation Set: 10284; Year: 2010; Biosample/Treatment: cell line, K-562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
17	Beausoleil S (2010) CST Curation Set: 10279; Year: 2010; Biosample/Treatment: cell line, K-562/untreated; Disease: chronic myelogenous leukemia; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Curated Info
18	Possemato A (2010) CST Curation Set: 9624; 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] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (110B7) Rabbit mAb Cat#: 9614, PTMScan(R) Phospho-Akt Substrate Motif (RXXS/T) Immunoaffinity Beads Cat#: 1978 Curated Info
19	Possemato A (2010) CST Curation Set: 9254; 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]XP Curated Info
20	Possemato A (2010) CST Curation Set: 9067; 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: (F/Y)XpS Curated Info
21	Zhou J (2009) CST Curation Set: 7763; Year: 2009; Biosample/Treatment: cell line, HeLa/untreated; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
22	Zhou J (2009) CST Curation Set: 7760; Year: 2009; Biosample/Treatment: cell line, HeLa/untreated; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
23	Zhou J (2009) CST Curation Set: 7762; Year: 2009; Biosample/Treatment: cell line, HeLa/untreated; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
24	Zhou J (2009) CST Curation Set: 7757; Year: 2009; Biosample/Treatment: cell line, HeLa/untreated; Disease: cervical adenocarcinoma; SILAC: -; Specificities of Antibodies Used to Purify Peptides prior to LCMS: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
25	Possemato A (2009) CST Curation Set: 7267; 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: RXXp[ST] Curated Info
26	Possemato A (2009) CST Curation Set: 7268; 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: RXXp[ST] Curated Info
27	Possemato A (2009) CST Curation Set: 7261; 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: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
28	Possemato A (2009) CST Curation Set: 7262; 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: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
29	Possemato A (2009) CST Curation Set: 6908; 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: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
30	Possemato A (2009) CST Curation Set: 6910; 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: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXS/T) (23C8D2) Rabbit mAb Cat#: 10001, PTMScan(R) Phospho-Akt Substrate Motif (RXRXXS/T) Immunoaffinity Beads Cat#: 1979 Curated Info
31	Possemato A (2009) CST Curation Set: 6898; 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: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
32	Possemato A (2009) CST Curation Set: 6899; 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: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-Akt Substrate (RXRXXT-P) (60D12F4) Rabbit mAb Cat#: 10002 Curated Info
33	Chen RQ, et al. (2009) CDC25B mediates rapamycin-induced oncogenic responses in cancer cells. Cancer Res 69, 2663-8 19276368 Curated Info
34	Ruse CI, et al. (2008) Motif-specific sampling of phosphoproteomes. J Proteome Res 7, 2140-50 18452278 Curated Info
35	Cantin GT, et al. (2008) Combining protein-based IMAC, peptide-based IMAC, and MudPIT for efficient phosphoproteomic analysis. J Proteome Res 7, 1346-51 18220336 Curated Info
36	Hurd TW, et al. (2003) Phosphorylation-dependent binding of 14-3-3 to the polarity protein Par3 regulates cell polarity in mammalian epithelia. Curr Biol 13, 2082-90 14653998 Curated Info