Cited by 321Estrogen and related hormone effectsReceptor Mechanisms and SignalingAdrenal Hormones and Disorders

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.

Deciphering the Phosphorylation “Code” of the Glucocorticoid Receptor in Vivo

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Wang, Zhen, Frederick, Jeremy, Garabedian, Michael J.·2002·Journal of Biological Chemistry

Abstract

The glucocorticoid receptor (GR) is phosphorylated at multiple serine residues in a hormone-dependent manner, yet progress on elucidating the function of GR phosphorylation has been hindered by the lack of a simple assay to detect receptor phosphorylation in vivo. We have produced antibodies that specifically recognize phosphorylation sites within human GR at Ser(203) and Ser(211). In the absence of hormone, the level of GR phosphorylation at Ser(211) was low compared with phosphorylation at Ser(203). Phosphorylation of both residues increased upon treatment with the GR agonist dexamethasone. Using a battery of agonists and antagonists, we found that the transcriptional activity of GR correlated with the amount of phosphorylation at Ser(211), suggesting that Ser(211) phosphorylation is a biomarker for activated GR in vivo. Mechanistically, the kinetics of Ser(203) and Ser(211) phosphorylation in response to hormone differed, with Ser(211) displaying a more robust and sustained phosphorylation relative to Ser(203). Analysis of GR immunoprecipitates with phospho-GR-specific antibodies indicated that the receptor was phosphorylated heterogeneously at Ser(203) in the absence of hormone, whereas in the presence of hormone, a subpopulation of receptors was phosphorylated at both Ser(203) and Ser(211). Interestingly, biochemical fractionation studies following hormone treatment indicated that the Ser(203)-phosphorylated form of the receptor was predominantly cytoplasmic, whereas Ser(211)-phosphorylated GR was found in the nucleus. Likewise, by immunofluorescence, Ser(203)-phosphorylated GR was located in the cytoplasm and perinuclear regions of the cell, but not in the nucleoplasm, whereas strong phospho-Ser(211) staining was evident in the nucleoplasm of hormone-treated cells. Our results suggest that differentially phosphorylated receptor species are located in unique subcellular compartments, likely modulating distinct aspects of receptor function.

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Crossref · 10.1074/jbc.m110530200

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Research works printed but not linked: 4

  1. Pratt, 1997, Endocr. Rev., 18, 306
  2. Bodwell, 1998, . Mol. Biol., 65, 91
  3. Burnstein, 1994, Mol/ Endocrinol., 8, 1764
  4. Somers, 1992, Mol. Endocrinol., 6, 26

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Metadata

Authors
Wang, Z., Frederick, J., & Garabedian, M. J.
Affiliations
New York University (US)
Corresponding author
Garabedian, Michael J.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2002-07
Volume
277
Issue
29
Pages
26573-26580
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2000736584
Cited by
321
References
34
Citations by year
2026: 5 · 2025: 8 · 2024: 14 · 2023: 13 · 2022: 11 · 2021: 11 · 2020: 11 · 2019: 8 · 2018: 12 · 2017: 16 · 2016: 16 · 2015: 12 · 2014: 20 · 2013: 21 · 2012: 18
FWCI
7.89
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Cancer Institute (P30CA016087)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK054836)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Estrogen and related hormone effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
Keywords
glucocorticoid receptor, receptor phosphorylation, dexamethasone, transcriptional activity, subcellular localization, cytoplasmic receptors, nuclear receptors
MeSH terms
Amino Acid Sequence, Cell Compartmentation, Dexamethasone, Fluocinolone Acetonide, Fluorescent Antibody Technique, Humans, Molecular Sequence Data, Phosphorylation, Prednisolone, Receptors, Glucocorticoid, Serine, Structure-Activity Relationship, Tumor Cells, Cultured, Biomarkers, Transcriptional Activation, Mifepristone, Fluorescent Antibody Technique, Indirect

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