Curated Information
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Curated Information Page
PubMed Id: 15870257 
This page summarizes selected information from the article referenced above and curated into PhosphoSitePlus®, a comprehensive online resource for the study of protein post-translational modifications (NAR, 2012,40:D261-70). To learn more about the scope of PhosphoSitePlus®, click here.
Lu X, Nannenga B, Donehower LA (2005) PPM1D dephosphorylates Chk1 and p53 and abrogates cell cycle checkpoints. Genes Dev 19, 1162-74 15870257
Only sites from this record are displayed on this page. Click on the protein name to open the protein page, and on the RSD number to open the site page. For the complete dataset, click the download button, on the right.
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S1981-p - ATM (human) ▲
Orthologous residues
ATM (human): S1981‑p, ATM (mouse): S1987‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  U2OS (bone cell) [GR (human)]
 Cellular systems studied:  cell lines
 Species studied:  human
Upstream Regulation
 Treatments, proteins and their effect on site modification: 
Treatments Referenced Treatments Manipulated Protein Referenced Protein Effect Notes
UV increase
ionizing radiation increase

S216-p - Cdc25C (human) ▲
Orthologous residues
Cdc25C (human): S216‑p, Cdc25C iso3 (human): S173‑p, Cdc25C (mouse): ‑, Cdc25C (frog): S287‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  U2OS (bone cell) [GR (human)]
 Cellular systems studied:  cell lines
 Species studied:  human
Upstream Regulation
 Treatments, proteins and their effect on site modification: 
Treatments Referenced Treatments Manipulated Protein Referenced Protein Effect Notes
UV increase

Y15-p - CDK1 (human) ▲
Orthologous residues
CDK1 (human): Y15‑p, CDK1 (mouse): Y15‑p, CDK1 (rat): Y15‑p, CDK1 (chicken): Y15‑p, CDK1 (fruit fly): Y15‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  U2OS (bone cell) [GR (human)]
 Cellular systems studied:  cell lines
 Species studied:  human

S317-p - Chk1 (human) ▲
Orthologous residues
Chk1 (human): S317‑p, Chk1 (mouse): S317‑p, Chk1 (rat): S317‑p, Chk1 (chicken): S317‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  U2OS (bone cell) [GR (human)]
 Cellular systems studied:  cell lines
 Species studied:  human
Upstream Regulation
 Treatments, proteins and their effect on site modification: 
Treatments Referenced Treatments Manipulated Protein Referenced Protein Effect Notes
UV increase

S345-p - Chk1 (human) ▲
Orthologous residues
Chk1 (human): S345‑p, Chk1 (mouse): S345‑p, Chk1 (rat): S345‑p, Chk1 (chicken): S345‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  U2OS (bone cell) [GR (human)]
 Cellular systems studied:  cell lines
 Species studied:  human
 Enzymes shown to modify site in vitro: 
Type Enzyme
PHOSPHATASE PPM1D (human)
Upstream Regulation
 Potential in vivo enzymes for site: 
Type Enzyme Evidence Notes
PHOSPHATASE PPM1D (human) transfection of inactive enzyme, transfection of wild-type enzyme, co-immunoprecipitation
 Treatments, proteins and their effect on site modification: 
Treatments Referenced Treatments Manipulated Protein Referenced Protein Effect Notes
UV increase
Downstream Regulation
 Effect of modification (function):  enzymatic activity, induced

S15-p - p53 (human) ▲
Orthologous residues
p53 (human): S15‑p, p53 (mouse): S15‑p, p53 iso2 (mouse): S18‑p, p53 (rat): S15‑p, p53 (rabbit): S15‑p, p53 (monkey): S15‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  U2OS (bone cell) [GR (human)]
 Cellular systems studied:  cell lines
 Species studied:  human
 Enzymes shown to modify site in vitro: 
Type Enzyme
PHOSPHATASE PPM1D (human)
Upstream Regulation
 Potential in vivo enzymes for site: 
Type Enzyme Evidence Notes
PHOSPHATASE PPM1D (human) transfection of inactive enzyme, transfection of wild-type enzyme, co-immunoprecipitation
 Treatments, proteins and their effect on site modification: 
Treatments Referenced Treatments Manipulated Protein Referenced Protein Effect Notes
UV increase
ionizing radiation increase

S46-p - p53 (human) ▲
Orthologous residues
p53 (human): S46‑p, p53 (mouse): L43‑p, p53 iso2 (mouse): L46‑p, p53 (rat): L48‑p, p53 (rabbit): S45‑p, p53 (monkey): S46‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  U2OS (bone cell) [GR (human)]
 Cellular systems studied:  cell lines
 Species studied:  human


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