Curated Information
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Curated Information Page
PubMed Id: 16081417 
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.
Xu BE, et al. (2005) WNK1 activates SGK1 by a phosphatidylinositol 3-kinase-dependent and non-catalytic mechanism. J Biol Chem 280, 34218-23 16081417
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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T308-p - Akt1 (human) ▲
Orthologous residues
Akt1 (human): T308‑p, Akt1 (mouse): T308‑p, Akt1 (rat): T308‑p, Akt1 (fruit fly): T423‑p, Akt1 (cow): T308‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  293 (epithelial)
 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
IGF-1 increase

S473-p - Akt1 (human) ▲
Orthologous residues
Akt1 (human): S473‑p, Akt1 (mouse): S473‑p, Akt1 (rat): S473‑p, Akt1 (fruit fly): S586‑p, Akt1 (cow): S473‑p
Characterization
 Methods used to characterize site in vivo:  phospho-antibody
 Relevant cell lines - cell types - tissues:  293 (epithelial)
 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
IGF-1 increase

T60-p - WNK1 (human) ▲
Orthologous residues
WNK1 (human): T60‑p, WNK1 iso4 (human): T60‑p, WNK1 (mouse): T58‑p, WNK1 iso3 (mouse): T58‑p, WNK1 iso8 (mouse): ‑, WNK1 (rat): T58‑p
Characterization
 Methods used to characterize site in vivo:  mutation of modification site, phospho-antibody
 Relevant cell lines - cell types - tissues:  293 (epithelial)
 Cellular systems studied:  cell lines
 Species studied:  human
 Enzymes shown to modify site in vitro: 
Type Enzyme
KINASE Akt1 (human)
KINASE SGK1 (human)
Upstream Regulation
 Treatments, proteins and their effect on site modification: 
Treatments Referenced Treatments Manipulated Protein Referenced Protein Effect Notes
wortmannin decrease
Downstream Regulation
 Effect of modification (function):  activation
 Comments:  Although phosphorylation of T58 does not alter WNK1 catalytic activity, it is required for activation of SGK1 by IGF-1.


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