Forgot your Password

If you have forgotten your password, please enter your account email below and we will reset your password and email you the new password.


Login to SciCrunch


Register an Account

Delete Saved Search

Are you sure you want to delete this saved search?


NIF LinkOut Portal


UbcH7 interacts with the glucocorticoid receptor and mediates receptor autoregulation.

Garside H, Waters C, Berry A, Rice L, Ardley HC, White A, Robinson PA, Ray D
The Journal of endocrinology


Unlike other nuclear receptors, transactivation by the glucocorticoid receptor (GR) is increased by the inhibition of the ubiquitin/proteasome pathway. Here, we demonstrate that the ubiquitin-conjugating enzyme (E2), UbcH7, physically interacts with the GR and, when overexpressed, reduces the ability of the receptor to upregulate gene expression. Chemical inhibition of the 26S proteasome abolished the downregulation effect of overexpressed UbcH7, suggesting a role for the 26S proteasome, and GR protein stability in mediating the UbcH7 effect. Furthermore, a UbcH7 dominant negative mutant (C89S), unable to transfer ubiquitin, failed to repress GR transactivation. Indeed, overexpression of the mutant UbcH7 was sufficient to augment GR transactivation to levels achieved using the proteasome inhibitor MG132, but there was no further induction when MG132 and the UbcH7 mutant were used together. Expression of the dominant negative UbcH7 abolished ligand-dependent downregulation of GR protein, suggesting that the UbcH7 effect was mediated by regulation of GR protein concentration. Taken together, these data show that UbcH7 is a key regulator of GR turnover and glucocorticoid sensitivity.

  1. Welcome

    Welcome to NIF. Explore available research resources: data, tools and materials, from across the web

  2. Community Resources

    Search for resources specially selected for NIF community

  3. More Resources

    Search across hundreds of additional biomedical databases

  4. Literature

    Search Pub Med abstracts and full text from PubMed Central

  5. Insert your Query

    Enter your search terms here and hit return. Search results for the selected tab will be returned.

  6. Join the Community

    Click here to login or register and join this community.

  7. Categories

    Narrow your search by selecting a category. For additional help in searching, view our tutorials.

  8. Query Info

    Displays the total number of search results. Provides additional information on search terms, e.g., automated query expansions, and any included categories or facets. Expansions, filters and facets can be removed by clicking on the X. Clicking on the + restores them.

  9. Search Results

    Displays individual records and a brief description. Click on the icons below each record to explore additional display options.