Results 111 to 120 of about 15,671 (201)

Biased amino acid composition in warm-blooded animals [PDF]

open access: yes, 2009
Among eubacteria and archeabacteria, amino acid composition is correlated with habitat temperatures. In particular, species living at high temperatures have proteins enriched in the amino acids E-R-K and depleted in D-N-Q-T-S-H-A. Here, we show that this
Guang-Zhong Wang, Martin J. Lercher
core   +1 more source

Kidney regeneration: common themes from the embryo to the adult [PDF]

open access: yes, 2013
The vertebrate kidney has an inherent ability to regenerate following acute damage. Successful regeneration of the injured kidney requires the rapid replacement of damaged tubular epithelial cells and reconstitution of normal tubular function ...
Cirio, Maria Cecilia   +4 more
core   +1 more source

Maternal pluripotency factors initiate extensive chromatin remodelling to predefine first response to inductive signals

open access: yesNature Communications, 2019
Embryonic development produces different cell types in response to a small number of inductive signals. Here, the authors characterise how maternal factors modify chromatin to specify initial competence in Xenopus tropicalis, finding that the pioneering ...
George E. Gentsch   +3 more
doaj   +1 more source

Vertebrate CASTOR Is Required for Differentiation of Cardiac Precursor Cells at the Ventral Midline [PDF]

open access: yes, 2003
SummaryThe CASTOR (CST) transcription factor was initially identified for its role in maintaining stem cell competence in the Drosophila dorsal midline. Here we report that Xenopus CST affects cardiogenesis. In CST-depleted embryos, cardiomyocytes at the
Christine, Kathleen S., Conlon, Frank L.
core   +1 more source

Xenopus tropicalis: An Ideal Experimental Animal in Amphibia

open access: yesExperimental Animals, 2010
Studies using amphibians have contributed to the progress of life science including developmental biology and cell biology for more than one hundred years. Since the 1950s Xenopus laevis in particular has been used by scientists in many fields for experiments, resulting in the development of various techniques such as microsurgery on early embryos ...
Keiko, Kashiwagi   +7 more
openaire   +3 more sources

Genetic screens for mutations affecting development of Xenopus tropicalis.

open access: yesPLoS Genetics, 2006
We present here the results of forward and reverse genetic screens for chemically-induced mutations in Xenopus tropicalis. In our forward genetic screen, we have uncovered 77 candidate phenotypes in diverse organogenesis and differentiation processes ...
Tadahiro Goda   +5 more
doaj   +1 more source

Nucleoporin gene expression in Xenopus tropicalis embryonic development

open access: yesThe International Journal of Developmental Biology, 2016
Nucleoporins (nups) compose the structure of the nuclear pore complex (NPC) of all cells, but several studies have illuminated nucleoporins' additional roles in development and the cell cycle. However, a comprehensive study of nup expression in embryonic development has not yet been reported.
Nooreen, Reza   +2 more
openaire   +3 more sources

More Than Just a Bandage: Closing the Gap Between Injury and Appendage Regeneration

open access: yesFrontiers in Physiology, 2019
The remarkable regenerative capabilities of amphibians have captured the attention of biologists for centuries. The frogs Xenopus laevis and Xenopus tropicalis undergo temporally restricted regenerative healing of appendage amputations and spinal cord ...
Anneke D. Kakebeen, Andrea E. Wills
doaj   +1 more source

The Development of Xenopus tropicalis Transgenic Lines and their Use in Studying Lens Developmental Timing in Living Embryos [PDF]

open access: yes, 2000
The generation of reporter lines for observing lens differentiation in vivo demonstrates a new strategy for embryological manipulation and allows us to address a long-standing question concerning the timing of the onset of differentiation.
Grainger, Robert M.   +2 more
core   +1 more source

Fixation and Expansion Microscopy of Xenopus Egg Extract Spindles

open access: yesBio-Protocol
In vitro systems based on Xenopus egg extracts have elucidated many aspects of spindle assembly. Still, numerous unknowns remain, particularly concerning the variation in spindle morphologies. The X. laevis and X.
Gabriel Guilloux   +7 more
doaj   +1 more source

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