Abstract
Internalization of activated receptors regulates signaling, and endocytic adaptor proteins are well-characterized in clathrin-mediated uptake. One of these adaptor proteins, huntingtin interacting protein 1 (HIP1), induces cellular transformation and is overexpressed in some prostate cancers. We have discovered that HIP1 associates with the androgen receptor through a central coiled coil domain and is recruited to DNA response elements upon androgen stimulation. HIP1 is a novel androgen receptor regulator, significantly repressing transcription when knocked down using a silencing RNA approach and activating transcription when overexpressed. We have also identified a functional nuclear localization signal at the COOH terminus of HIP1, which contributes to the nuclear translocation of the protein. In conclusion, we have discovered that HIP1 is a nucleocytoplasmic protein capable of associating with membranes and DNA response elements and regulating transcription.
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Dates
Type | When |
---|---|
Created | 20 years, 1 month ago (July 18, 2005, 2:38 p.m.) |
Deposited | 2 years, 1 month ago (July 22, 2023, 3:08 p.m.) |
Indexed | 2 months ago (July 2, 2025, 3:08 p.m.) |
Issued | 20 years, 1 month ago (July 18, 2005) |
Published | 20 years, 1 month ago (July 18, 2005) |
Published Online | 20 years, 1 month ago (July 18, 2005) |
Published Print | 20 years, 1 month ago (July 18, 2005) |
@article{Mills_2005, title={Huntingtin interacting protein 1 modulates the transcriptional activity of nuclear hormone receptors}, volume={170}, ISSN={0021-9525}, url={http://dx.doi.org/10.1083/jcb.200503106}, DOI={10.1083/jcb.200503106}, number={2}, journal={The Journal of Cell Biology}, publisher={Rockefeller University Press}, author={Mills, Ian G. and Gaughan, Luke and Robson, Craig and Ross, Theodora and McCracken, Stuart and Kelly, John and Neal, David E.}, year={2005}, month=jul, pages={191–200} }