Results 91 to 100 of about 3,289 (189)

Phylogenetic position of Placozoa based on large subunit (LSU) and small subunit (SSU) rRNA genes

open access: yesGenetics and Molecular Biology, 2007
The phylum Placozoa, represented by its single species Trichoplax adhaerens, has always been considered one of the most basal animal clades due to its low morphological complexity.
Fernanda Britto da Silva   +2 more
doaj   +1 more source

A phylogenetic survey of myotubularin genes of eukaryotes: distribution, protein structure, evolution, and gene expression [PDF]

open access: yes, 2010
Background Phosphorylated phosphatidylinositol (PtdIns) lipids, produced and modified by PtdIns kinases and phosphatases, are critical to the regulation of diverse cellular functions.
David Kerk, Greg BG Moorhead
core   +1 more source

Binary fission in Trichoplax is orthogonal to the subsequent division plane

open access: yesMechanisms of Development, 2020
Asexual reproduction in Trichoplax occurs mainly by binary fission and occasionally by the budding of epithelial spheres called "swarmers". The process that leads to binary fission and the mechanisms involved in this segregation are practically unknown.
Jorge, Zuccolotto-Arellano   +1 more
openaire   +2 more sources

Migration et violence [PDF]

open access: yes, 2003
Les migrants et les requérants s'asile qui ont survécu à des violences ou à des tortures ont expérimenté des traumatismes physiques et psychologiques qui ont laissé des traces, des plaies béantes. Une fois arrivés dans le pays d'accueil, la violence dont
Bodenmann, P., Vannotti, M.
core   +3 more sources

Evolution of the TGF-β signaling pathway and its potential role in the ctenophore, Mnemiopsis leidyi. [PDF]

open access: yesPLoS ONE, 2011
The TGF-β signaling pathway is a metazoan-specific intercellular signaling pathway known to be important in many developmental and cellular processes in a wide variety of animals. We investigated the complexity and possible functions of this pathway in a
Kevin Pang   +3 more
doaj   +1 more source

The evolution of the dystroglycan complex, a major mediator of muscle integrity [PDF]

open access: yes, 2015
Basement membrane (BM) extracellular matrices are crucial for the coordination of different tissue layers. A matrix adhesion receptor that is important for BM function and stability in many mammalian tissues is the dystroglycan (DG) complex.
Adams, Josephine C, Brancaccio, Andrea
core   +3 more sources

Functional characterization of p53 pathway components in the ancient metazoan Trichoplax adhaerens [PDF]

open access: yesScientific Reports, 2016
AbstractThe identification of genes encoding a p53 family member and an Mdm2 ortholog in the ancient placozoan Trichoplax adhaerens advocates for the evolutionary conservation of a pivotal stress-response pathway observed in all higher eukaryotes. Here, we recapitulate several key functionalities ascribed to this known interacting protein pair by ...
Siau, J.W   +7 more
openaire   +3 more sources

Animal HECT ubiquitin ligases: evolution and functional implications [PDF]

open access: yes, 2010
12 pages, 6 figures, 1 table, 3 additional files.[Background] HECT ubiquitin ligases (HECT E3s) are key components of the eukaryotic ubiquitin-proteasome system and are involved in the genesis of several human diseases.
Ignacio Marín
core   +2 more sources

On an Evolutionary Foundation of Neuroeconomics [PDF]

open access: yes
Neuroeconomics focuses on brain imaging studies mapping neural responses to choice behavior. Economic theory is concerned with choice behavior but it is silent on neural activities.
Burkhard C. Schipper
core   +3 more sources

Features of a novel protein, rusticalin, from the ascidian Styela rustica reveal ancestral horizontal gene transfer event

open access: yesMobile DNA, 2019
Background The transfer of genetic material from non-parent organisms is called horizontal gene transfer (HGT). One of the most conclusive cases of HGT in metazoans was previously described for the cellulose synthase gene in ascidians.
Maria A. Daugavet   +5 more
doaj   +1 more source

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