Ser521

Site Information
QAQTRQAsALIDrPA SwissProt Entrez-Gene
Blast this site against: NCBI SwissProt PDB
Site Group ID: 455112

In vivo Characterization
Methods used to characterize site in vivo:	mass spectrometry ( 1 , 4 , 5 , 6 , 7 , 8 )
Disease tissue studied:	HER2 positive breast cancer ( 1 ) , luminal A breast cancer ( 1 ) , luminal B breast cancer ( 1 ) , breast cancer, triple negative ( 1 )
Relevant cell line - cell type - tissue:	breast ( 1 ) , HeLa (cervical) ( 4 ) , Jurkat (T lymphocyte) ( 5 , 6 , 7 , 8 ) , K562 (erythroid) ( 4 )

References
1	Mertins P, et al. (2016) Proteogenomics connects somatic mutations to signalling in breast cancer. Nature 534, 55-62 27251275 Curated Info
2	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
3	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
4	Zhou H, et al. (2013) Toward a comprehensive characterization of a human cancer cell phosphoproteome. J Proteome Res 12, 260-71 23186163 Curated Info
5	Guo A (2012) CST Curation Set: 13865; 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: RXXp[ST] Curated Info
6	Guo A (2012) CST Curation Set: 13866; 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: RXXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-(Ser/Thr) PKD Substrate Antibody Cat#: 4381, PTMScan(R) Phospho-PKD Substrate Motif (LXRXXpS/pT) Immunoaffinity Beads Cat#: 1986 Curated Info
7	Mulhern D (2012) CST Curation Set: 13759; 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: RXXp[ST] Curated Info
8	Guo A (2011) CST Curation Set: 11452; 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: RRXp[ST] Antibodies Used to Purify Peptides prior to LCMS: Phospho-PKA Substrate (RRXS/T) (100G7) Rabbit mAb Cat#: 9624, PTMScan(R) Phospho-PKA Substrate Motif (K/RK/RXS/T) Immunoaffinity Beads Cat#: 1984 Curated Info