Results 21 to 30 of about 91,354 (252)

Evolutionary importance of translation elongation factor eEF1A variant switching:eEF1A1 down-regulation in muscle is conserved in Xenopus but is controlled at a post-transcriptional level [PDF]

open access: yes, 2011
Translation elongation isoform eEF1A1 has a pivotal role in protein synthesis and is almost ubiquitously expressed. In mice and rats that transcription of the gene encoding eEF1A1 is downregulated to undetectable levels in muscle after weaning; eEF1A1 is
Abbott, Catherine M   +3 more
core   +1 more source

Multiple massive domestication and recent amplification of Kolobok superfamily transposons in the clawed frog Xenopus

open access: yesZoological Letters, 2018
Background DNA transposons are generally destroyed by mutations and have short lifespans in hosts, as they are neutral or harmful to the host and therefore not conserved by natural selection.
Akira Hikosaka, Seigo Konishi
doaj   +1 more source

Patterns of tubb2b Promoter-Driven Fluorescence in the Forebrain of Larval Xenopus laevis

open access: yesFrontiers in Neuroanatomy, 2022
Microtubules are essential components of the cytoskeleton of all eukaryotic cells and consist of α- and β-tubulin heterodimers. Several tissue-specific isotypes of α- and β-tubulins, encoded by distinct genes, have been described in vertebrates.
Daniela Daume   +3 more
doaj   +1 more source

Characterization of atrazine-induced gonadal malformations in African clawed frogs (Xenopus laevis) and comparisons with effects of an androgen antagonist (cyproterone acetate) and exogenous estrogen (17beta-estradiol): Support for the demasculinization/feminization hypothesis. [PDF]

open access: yes, 2006
Atrazine is a potent endocrine disruptor that both chemically castrates and feminizes male amphibians. It depletes androgens in adult frogs and reduces androgen-dependent growth of the larynx in developing male larvae.
Collins, Atif   +8 more
core   +2 more sources

Phosphorylation by Cdk1 increases the binding of Eg5 to microtubules in vitro and in Xenopus egg extract spindles. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND:Motor proteins from the kinesin-5 subfamily play an essential role in spindle assembly during cell division of most organisms. These motors crosslink and slide microtubules in the spindle.
Julie Cahu   +8 more
doaj   +1 more source

Obtaining Xenopus laevis Embryos

open access: yesCold Spring Harbor Protocols, 2020
The embryos of the African clawed frog, Xenopus laevis, are a powerful substrate for the study of complex fundamental biological and disease mechanisms in neurobiology, physiology, molecular biology, cell biology, and developmental biology. A simple and straightforward technique for generating a large number of developmentally synchronized embryos is ...
Nikko-Ideen, Shaidani   +3 more
openaire   +3 more sources

Microinjection of Xenopus Laevis Oocytes [PDF]

open access: yesJournal of Visualized Experiments, 2009
Microinjection of Xenopus laevis oocytes followed by thin-sectioning electron microscopy (EM) is an excellent system for studying nucleocytoplasmic transport. Because of its large nucleus and high density of nuclear pore complexes (NPCs), nuclear transport can be easily visualized in the Xenopus oocyte.
Cohen, Sarah, Au, Shelly, Panté, Nelly
openaire   +2 more sources

A Model for Investigating Developmental Eye Repair in Xenopus Laevis [PDF]

open access: yes, 2018
Vertebrate eye development is complex and requires early interactions between neuroectoderm and surface ectoderm during embryogenesis. In the African clawed frog, Xenopus laevis, individual eye tissues such as the retina and lens can undergo regeneration.
Kha, Cindy X.   +3 more
core   +2 more sources

A NuRD Complex from Xenopus laevis Eggs Is Essential for DNA Replication during Early Embryogenesis

open access: yesCell Reports, 2018
Summary: DNA replication in the embryo of Xenopus laevis changes dramatically at the mid-blastula transition (MBT), with Y RNA-independent random initiation switching to Y RNA-dependent initiation at specific origins.
Christo P. Christov   +6 more
doaj   +1 more source

Cooperation behavior of fore‐ And hindlimbs during jumping in Rana dybowskii and Xenopus laevis

open access: yesEcology and Evolution, 2021
Frogs are characterized by their outstanding jumping ability, depending on the rapid extension of hindlimbs to propel their bodies into air. A typical jumping cycle could be broken into four phases: preparation, takeoff, flight, and landing. Considerable
Mo Li   +6 more
doaj   +1 more source

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