Direkt zum Inhalt

Langmann, Thomas ; Lai, C. C. ; Weigelt, K. ; Tam, B. M. ; Warneke-Wittstock, R. ; Moritz, O. L. ; Weber, Bernhard H. F.

CRX controls retinal expression of the X-linked juvenile retinoschisis (RS1) gene

Langmann, Thomas, Lai, C. C., Weigelt, K., Tam, B. M., Warneke-Wittstock, R., Moritz, O. L. und Weber, Bernhard H. F. (2008) CRX controls retinal expression of the X-linked juvenile retinoschisis (RS1) gene. Nucleic Acids Research 36, S. 6523-6334.

Veröffentlichungsdatum dieses Volltextes: 10 Feb 2017 15:24
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.35211


Zusammenfassung

X-linked juvenile retinoschisis is a heritable condition of the retina in males caused by mutations in the RS1 gene. Still, the cellular function and retina-specific expression of RS1 are poorly understood. To address the latter issue, we characterized the minimal promoter driving expression of RS1 in the retina. Binding site prediction, site-directed mutagenesis, and reporter assays suggest an ...

X-linked juvenile retinoschisis is a heritable condition of the retina in males caused by mutations in the RS1 gene. Still, the cellular function and retina-specific expression of RS1 are poorly understood. To address the latter issue, we characterized the minimal promoter driving expression of RS1 in the retina. Binding site prediction, site-directed mutagenesis, and reporter assays suggest an essential role of two nearby cone-rod homeobox (CRX)-responsive elements (CRE) in the proximal -177/+32 RS1 promoter. Chromatin immunoprecipitation associates the RS1 promoter in vivo with CRX, the coactivators CBP, P300, GCN5 and acetylated histone H3. Transgenic Xenopus laevis expressing a green fluorescent protein (GFP) reporter under the control of RS1 promoter sequences show that the -177/+32 fragment drives GFP expression in photoreceptors and bipolar cells. Mutating either of the two conserved CRX binding sites results in strongly decreased RS1 expression. Despite the presence of sequence motifs in the promoter, NRL and NR2E3 appear not to be essential for RS1 expression. Together, our in vitro and in vivo results indicate that two CRE sites in the minimal RS1 promoter region control retinal RS1 expression and establish CRX as a key factor driving this expression.



Beteiligte Einrichtungen


Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftNucleic Acids Research
Verlag:OXFORD UNIV PRESS
Ort der Veröffentlichung:OXFORD
Band:36
Seitenbereich:S. 6523-6334
Datum2008
InstitutionenMedizin > Lehrstuhl für Humangenetik
Identifikationsnummer
WertTyp
10.1093/nar/gkn737DOI
18927113PubMed-ID
Stichwörter / KeywordsREGULATORY TARGETS; BIPOLAR CELLS; MOUSE RETINA; PHOTORECEPTOR; PROTEIN; NRL; ROD; TRANSCRIPTION; NR2E3; IDENTIFICATION;
Dewey-Dezimal-Klassifikation600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-352116
Dokumenten-ID35211

Bibliographische Daten exportieren

Nur für Besitzer und Autoren: Kontrollseite des Eintrags

nach oben