Hashimoto et al., Yonago, Japan. In Protein J, 2014
A phosphorylated protein with a molecular mass of 25,000 (pp25) is involved in Xenopus laevis vitellogenin B1 and partially overlaps with phosvitin and lipovitellin 2. The protease responsible for pp25 degradation was studied in vitro since this occurs during embryogenesis.
Min, Chinju, South Korea. In Ann N Y Acad Sci, 2006
Accordingly, this article further examined the effects of the endogenous vitellogenin B1 estrogen responsive promotor on the SXR- and PPAR-gamma-modulated ER transactivation in Hep G2, and either dose-dependent or single dose effects of SXR, PPAR-gamma, and CAR in two different breast cancer cell lines and the ovarian-derived cell line respectively, on the ER-mediated transactivation of the synthetic (4ERE)-tk-luciferase reporter.
Hashimoto et al., Yonago, Japan. In Dev Growth Differ, 2003
A phosphorylated protein with a molecular mass of 25 000 (pp25) previously purified from the cytosolic fraction of Xenopus laevis oocytes is an effective phosphate acceptor for casein kinases and protein kinase C. In this study, based on the partial amino acid sequence of pp25, a cDNA was isolated that encodes a new yolk precursor protein, Xenopus vitellogenin B1, which contained the sequence encoding pp25.
Nardulli et al., Urbana, United States. In J Biol Chem, 2001
Although the imperfect vitellogenin B1, pS2, and oxytocin (OT) EREs each differ from the consensus vitellogenin A2 ERE sequence by a single base pair, ERbeta activates transcription of reporter plasmids containing A2, pS2, B1, and OT EREs to different extents.
Nardulli et al., Urbana, United States. In Mol Cell Endocrinol, 2001
To understand how estrogen-responsive genes are regulated, we compared the abilities of estrogen receptors (ERs) alpha and beta to bind to and activate transcription through the consensus vitellogenin A2 ERE and the imperfect pS2, vitellogenin B1, and oxytocin (OT) EREs.
Wahli et al., Lausanne, Switzerland. In J Biol Chem, 2000
The liver-specific vitellogenin B1 promoter is efficiently activated by estrogen within a nucleosomal environment after microinjection into Xenopus laevis oocytes, consistent with the hypothesis that significant nucleosome remodeling over this promoter is not a prerequisite for the activation by the estrogen receptor (ERalpha).
Wahli et al., Lausanne, Switzerland. In Mol Endocrinol, 1998
When the natural estrogen-dependent vitellogenin B1 promoter is tested in yeast, CTF1 and CTF1-fusion proteins are unable to activate transcription, and no synergy is observed between hER, which activates the B1 promoter, and these factors.