ArticleHistochemistry and cell biology2006
Role of H1 phosphorylation in rapid GR exchange and function at the MMTV promoter.
Article in Histochemistry and cell biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 12 citations in OpenAlex.
- Linker histone partial phosphorylation: effects on secondary structure and chromatin condensation.Nucleic acids research · 2015Article
- Histone H1 interphase phosphorylation becomes largely established in G1 or early S phase and differs in G1 between T-lymphoblastoid cells and normal T cells.Epigenetics & chromatin · 2011Article
- Article
- Recent progress in histochemistry.Histochemistry and cell biology · 2007Review
- The histochemistry and cell biology vade mecum: a review of 2005-2006.Histochemistry and cell biology · 2006Review
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
Photobleaching technology has demonstrated in live cells that the glucocorticoid receptor (GR) exchanges rapidly at the mouse mammary tumor virus (MMTV) promoter. GR rapid exchange at MMTV depends on chaperone and proteasome activity, and as suggested by several in vitro and in vivo biochemical approaches, may also involve chromatin remodeling activity. Inhibition of H1 phosphorylation, chromatin remodeling and transcription from MMTV can be accomplished by long-term blocking of Cdk2 protein kinase activity. We find that Cdk2 is recruited by a tandem array of MMTV promoters, strengthening the model that this kinase has a specific role in MMTV transcription. We also demonstrate that following a brief Cdk2 inhibition by a selective cyclin-dependent kinase inhibitor (Roscovitine), transcription from MMTV drops and GR exchange at MMTV becomes slower, with a fraction of GR molecules now tightly bound at the promoter. This immobile fraction is absent elsewhere in the nucleus, suggesting a specific effect of Cdk2 inhibition on GR-MMTV interactions. These are the first live cell data suggesting a role for H1 phosphorylation, and by implication chromatin remodeling, in rapid exchange of GR at MMTV.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.