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Open AccessJournal ArticleDOI

Chick Ovalbumin Upstream Promoter-Transcription Factors (COUP-TFs): Coming of Age

Sophia Y. Tsai, +1 more
- 01 Apr 1997 - 
- Vol. 18, Iss: 2, pp 229-240
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TLDR
This work has shown that COUP-TFs acts as a “spatially aggregating force” to reprogram other members of the steroid/thyroid hormone receptor superfamily into a single gene family.
Abstract
I. Introduction II. The COUP-TF Gene Family A. Homology to other members of the steroid/thyroid hormone receptor superfamily B. Sequence homology within the COUP-TF gene family III. Biochemical Characteristics A. DNA-binding sites B. Molecular mechanism of COUP-TFs action 1. Competition for occupancy of the binding sites 2. Competition for RXR 3. Active repression 4. Transrepression 5. The role of COUP-TFs in transactivation IV. Expression Patterns of COUP-TFs During Development A. Expression patterns in zebrafish and Xenopus B. Expression patterns in mouse and chick V. Physiological Function of COUP-TFs A. Ectopic expression of svp in Drosophila B. Ectopic expression of COUP-TFI in Xenopus embryos C. Loss of function of COUP-TFI in mice D. Loss of function of COUP-TFII in mice VI. Regulation of the Expression of COUP-TF Genes A. Regulation of COUP-TF by retinoids B. Regulation of COUP-TF by sonic hedgehog (Shh) VII. Perspectives

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Journal ArticleDOI

Nuclear Hormone Receptors and Gene Expression

TL;DR: The characterization of corepressor and coactivator complexes, in concert with the identification of the specific interaction motifs in the receptors, has demonstrated the existence of a general molecular mechanism by which different receptors elicit their transcriptional responses in target genes.
Journal ArticleDOI

Orphan nuclear receptors: from gene to function.

TL;DR: I. Nuclear Receptors: General Concepts and Orphans in Search of a Home.
Journal ArticleDOI

The orphan nuclear receptor COUP-TFII is required for angiogenesis and heart development

TL;DR: The embryonic expression of COUP-TFII, an orphan nuclear receptor, suggests that it may participate in mesenchymal-epithelial interactions required for organogenesis, and the expression of Angiopoietin-1, a proangiogenic soluble factor thought to mediate the mesenchyme-endothelial interactions during heart development and vascular remodeling, is down-regulated in COUP -TFII mutants.
Journal ArticleDOI

Embryonic signaling centers expressing BMP, WNT and FGF proteins interact to pattern the cerebral cortex.

TL;DR: Findings point to a cross-regulation of BMP, FGF, and WNT signaling in the early telencephalon, integrated by EMX2, and required for normal cortical development.
References
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Journal ArticleDOI

Gene regulation by steroid hormones.

Miguel Beato
- 10 Feb 1989 - 
TL;DR: The location, orientation, and structure of the hormone regulatory elements (HRE) in nine hormonally modulated genes is described and a model for the interaction is proposed in which a dimer of the receptor in head-to-head orientation binds to the inverted symmetry element of the HRE.
Journal ArticleDOI

The RXR heterodimers and orphan receptors

TL;DR: The historical links between the steroid and nonsteroid receptor signaling systems are established, the explosive development of the retinoid X receptor (RXR) heterodimer and orphan receptor family is charted, the impact of these discoveries on the authors' understanding of the mechanisms of hormonal signaling is explained, and emerging issues and implications are presented.
Journal ArticleDOI

Molecular mechanisms of action of steroid/thyroid receptor superfamily members

TL;DR: The role of Ligand in RECEPTOR TRANSFORMATION and ACTIVATION is studied, as well as the role of serotonin, which plays a role in both transformation and inhibition.
Journal ArticleDOI

Homeobox genes and axial patterning

TL;DR: Over the past seven years, the term “homeodomain” has evolved to define a class of protein domains that have recognizable similarity to a 60 amino acid motif originally recognized in three Drosophila homeotic and segmentation proteins.
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