Human hepatocyte nuclear factor 4 isoforms are encoded by distinct and differentially expressed genes.

av Drewes, T, Senkel, S, Holewa, B, Ryffel, G U
Publicerad 1996

Comparative analysis of Xenopus tropicalis and Xenopus laevis vitellogenin gene sequences.

av Jaggi, R B, Wyler, T, Ryffel, G U
Publicerad 1982

Tissue-specificity of liver gene expression: a common liver-specific promoter element.

av Kugler, W, Wagner, U, Ryffel, G U
Publicerad 1988

Liver specific transcription factors of the HNF3-, C/EBP- and LFB1-families interact with the A-activator binding site.

av Drewes, T, Klein-Hitpass, L, Ryffel, G U
Publicerad 1991

Post-transcriptional regulation of albumin gene expression in Xenopus liver.

av Kazmaier, M, Brüning, E, Ryffel, G U
Publicerad 1985

An alternative splice variant of the tissue specific transcription factor HNF4alpha predominates in undifferentiated murine cell types.

av Nakhei, H, Lingott, A, Lemm, I, Ryffel, G U
Publicerad 1998

HNF4beta, a new gene of the HNF4 family with distinct activation and expression profiles in oogenesis and embryogenesis of Xenopus laevis.

av Holewa, B, Zapp, D, Drewes, T, Senkel, S, Ryffel, G U
Publicerad 1997

Persistence, methylation and expression of vitellogenin gene derivatives after injection into fertilized eggs of Xenopus laevis.

av Andres, A C, Muellener, D B, Ryffel, G U
Publicerad 1984

Liver cell specific gene transcription in vitro: the promoter elements HP1 and TATA box are necessary and sufficient to generate a liver-specific promoter.

av Ryffel, G U, Kugler, W, Wagner, U, Kaling, M
Publicerad 1989

Estrogen induces tissue specific changes in the chromatin conformation of the vitellogenin genes in Xenopus.

av Gerber-Huber, S, Felber, B K, Weber, R, Ryffel, G U
Publicerad 1981

The embryonic expression of the tissue-specific transcription factor HNF1alpha in Xenopus: rapid activation by HNF4 and delayed induction by mesoderm inducers.

av Nastos, A, Pogge von Strandmann, E, Weber, H, Ryffel, G U
Publicerad 1998

Scattering of repetitive DNA sequences in the albumin and vitellogenin gene loci of Xenopus laevis.

av Ryffel, G U, Muellener, D B, Gerber-Huber, S, Wyler, T, Wahli, W
Publicerad 1983

BAP, a rat liver protein that activates transcription through a promoter element with similarity to the USF/MLTF binding site.

av Kugler, W, Kaling, M, Ross, K, Wagner, U, Ryffel, G U
Publicerad 1990

Two types of antiprogestins identified by their differential action in transcriptionally active extracts from T47D cells.

av Klein-Hitpass, L, Cato, A C, Henderson, D, Ryffel, G U
Publicerad 1991

A 13 bp palindrome is a functional estrogen responsive element and interacts specifically with estrogen receptor.

av Klein-Hitpass, L, Ryffel, G U, Heitlinger, E, Cato, A C
Publicerad 1988

Liver-specific gene expression: A-activator-binding site, a promoter module present in vitellogenin and acute-phase genes.

av Kaling, M, Kugler, W, Ross, K, Zoidl, C, Ryffel, G U
Publicerad 1991

Elements and factors involved in tissue-specific and embryonic expression of the liver transcription factor LFB1 in Xenopus laevis.

av Zapp, D, Bartkowski, S, Holewa, B, Zoidl, C, Klein-Hitpass, L, Ryffel, G U
Publicerad 1993

Introduction of estrogen-responsiveness into mammalian cell lines.

av Druege, P M, Klein-Hitpass, L, Green, S, Stack, G, Chambon, P, Ryffel, G U
Publicerad 1986

A cell-specific activator in the Xenopus A2 vitellogenin gene: promoter elements functioning with rat liver nuclear extracts.

av Döbbeling, U, Ross, K, Klein-Hitpass, L, Morley, C, Wagner, U, Ryffel, G U
Publicerad 1988

Nuclear receptors for thyroid hormone: evidence for nonrandom distribution within chromatin.

av Charles, M A, Ryffel, G U, Obinata, M, McCarthy, B J, Baxter, J D
Publicerad 1975