Regulation of the Xenopus Xsox17α1 promoter by co-operating VegT and Sox17 sites

Xenopus differentiation: VegT gets specific

Depletion of the maternal store of the localised mRNA encoding the T-box transcription factor VegT in Xenopus embryos has recently been shown to dramatically block endoderm formation and change the normal position of the mesodermal and ectodermal germ layers.

Direct and indirect regulation of derrière, a Xenopus mesoderm-inducing factor, by VegT.

One candidate for an endogenous mesoderm-inducing factor in Xenopus is derrière, a member of the TGFbeta family closely related to Vg1. In this paper we first show that derrière is able to exert long-range effects in the early Xenopus embryo, reinforcing the view that it functions as a secreted factor required for proper formation of posterior structures. Analysis of the derrière promoter shows...

a tripartite model of efl teachers attributions, burnout, and ‎self-regulation: towards the prospects of effective teaching

همطالعه حاضر به ارائه مدلی برای آموزش موثر زبان انگلیسی ‏می پردازد. مدل حاضر از سه عامل تاثیر گذار در کارایی ‏تدریس معلمان زبان انگلیسی بهره می برد. این سه عامل شامل ‏سبکهای اسنادی، خود تنطیمی و فرسودگی شغلی معلمان ایرانی ‏زبان انگلیسی می باشد. رساله مورد نظر درچهار فاز طراحی ‏شده است: فاز اول شامل طراحی و رواسازی پرسشنامه سبکهای ‏اسنادی معلمان زبان انگلیسی و فاز دوم شامل استفاده از ‏این پرسشنا...

Differential expression of VegT and Antipodean protein isoforms in Xenopus

The VegT/Antipodean (Apod) gene is important for germ layer formation in Xenopus. To investigate the role of this gene at the protein level, as opposed to the RNA level, we have generated affinity purified polyclonal antibodies to Apod, and for comparison, to the other early T-box proteins Xbrachyury and Eomesodermin. An anti-VegT/Apod antibody reveals that there are two protein isoforms in Xen...

Down Regulation of DHFR Promoter Activity by PML Transcription Repressor