Results 31 to 40 of about 12,374,157 (394)

Analysis of Cell–Cell Bridges in Haloferax volcanii Using Electron Cryo-Tomography Reveal a Continuous Cytoplasm and S-Layer

open access: yesFrontiers in Microbiology, 2021
Halophilic archaea have been proposed to exchange DNA and proteins using a fusion-based mating mechanism. Scanning electron microscopy previously suggested that mating involves an intermediate state, where cells are connected by an intercellular bridge ...
Shamphavi Sivabalasarma   +7 more
doaj   +1 more source

Pheromone-induced polarization is dependent on the Fus3p MAPK acting through the formin Bni1p [PDF]

open access: yes, 2004
During mating, budding yeast cells reorient growth toward the highest concentration of pheromone. Bni1p, a formin homologue, is required for this polarized growth by facilitating cortical actin cable assembly.
Matheos, Dina   +4 more
core   +2 more sources

Structural Basis of Eukaryotic Cell-Cell Fusion [PDF]

open access: yesCell, 2014
Cell-cell fusion proteins are essential in development. Here we show that the C. elegans cell-cell fusion protein EFF-1 is structurally homologous to viral class II fusion proteins. The 2.6 Å crystal structure of the EFF-1 trimer displays the same 3D fold and quaternary conformation of postfusion class II viral fusion proteins, although it lacks a ...
Jimena Pérez-Vargas   +8 more
semanticscholar   +6 more sources

Normal microspore production after cell fusion in Brachiaria jubata (Gramineae)

open access: yesGenetics and Molecular Biology, 2003
Cytogenetic studies were carried out on 22 accessions of Brachiaria jubata from the Embrapa Beef Cattle Brachiaria collection. One accession was diploid (2n = 2x = 18) and the remaining 21 were tetraploid (2n = 4x = 36). Among five tetraploid accessions,
Andréa Beatriz Mendes-Bonato   +3 more
doaj   +1 more source

Very Rare Complementation between Mitochondria Carrying Different Mitochondrial DNA Mutations Points to Intrinsic Genetic Autonomy of the Organelles in Cultured Human Cells [PDF]

open access: yes, 2000
In the present work, a large scale investigation was done regarding the capacity of cultured human cell lines (carrying in homoplasmic form either the mitochondrial tRNALys A8344G mutation associated with the myoclonic epilepsy and ragged red fiber ...
Attardi, Giuseppe   +3 more
core   +1 more source

Fusion of neurohypophyseal membranes in vitro [PDF]

open access: yes, 1977
Freeze cleaving electron microscopy has shown that fusion of isolated secretory vesicles from bovine neurohypophyses was induced by Ca 2+ in micromolar concentrations. Mg 2+ and Sr 2+ were ineffective. Mg 2+ inhibited Ca 2+-induced fusion. In suspensions
Dahl, G.   +3 more
core   +1 more source

Cell fusion [PDF]

open access: yesWormBook, 2006
Selective cell fusion is a natural part of development. It is found in sexually reproducing organisms that require fertilization to propagate and in muscles, placenta, bones, lens of the eye and stem cells. Cell fusion is particularly important in the development of C. elegans: in addition to 300 sperm and oocytes that fuse during fertilization, 300 of
openaire   +2 more sources

Cry2 Is Critical for Circadian Regulation of Myogenic Differentiation by Bclaf1-Mediated mRNA Stabilization of Cyclin D1 and Tmem176b

open access: yesCell Reports, 2018
Summary: Circadian rhythms regulate cell proliferation and differentiation; however, little is known about their roles in myogenic differentiation. Our synchronized differentiation studies demonstrate that myoblast proliferation and subsequent myotube ...
Matthew Lowe   +13 more
doaj   +1 more source

Arsenic Trioxide Promotes Tumor Progression by Inducing the Formation of PGCCs and Embryonic Hemoglobin in Colon Cancer Cells

open access: yesFrontiers in Oncology, 2021
Arsenic trioxide (ATO) has been used to treat acute promyelocytic leukemia. However, it is not effective in treating solid tumors such as colorectal cancer.
Zugui Li   +11 more
doaj   +1 more source

The stochastic entry of enveloped viruses: Fusion vs. endocytosis [PDF]

open access: yes, 2007
Viral infection requires the binding of receptors on the target cell membrane to glycoproteins, or ``spikes,'' on the viral membrane. The initial entry is usually classified as fusogenic or endocytotic.
Barocchi   +28 more
core   +3 more sources

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