Results 21 to 30 of about 144,914 (237)
Photometric study of the C/2014 Q2 (Lovejoy) comet plasma tails [PDF]
Planetary and Space Science, 2018 Observations of C/2014 Q2 (Lovejoy) comet were carried out on 7th February, 2015, at the observation station in Mayaki village (No. 583 – Odesa-Mayaki observatory). The integrated-light photometry of the comet was conducted using RC-800 telescope (D = 80
V. V. Kleschonok +3 more
semanticscholar +1 more source
Palladin Compensates for the Arp2/3 Complex and Supports Actin Structures during
mBio, 2018 Palladin is an important component of motile actin-rich structures and nucleates branched actin filament arrays in vitro. Here we examine the role of palladin during Listeria monocytogenes infections in order to tease out novel functions of palladin.
Aaron S. Dhanda +5 more
doaj +1 more source
Nature Reviews Microbiology, 2010 Comet tail formation in Rickettsia spp. relies on the formin-like protein Sca2 to mediate actin nucleation.
openaire +2 more sources
Nature, 1870 IN NATURE of 16th December, Prof. Tait advances the opinion that the tail of a comet consists of nothing but meteorites; mentioning in proof of this that the orbits of the August and November meteors have been determined, and found to be identical with those of two known comets. I do not question the importance of this most remarkable fact, but I think
openaire +1 more source
Icarus (New York, N.Y. 1962), 2019 Striated features, or striae, form in cometary dust tails due to an as-yet unconstrained process or processes. For the first time we directly display the formation of striae, at C/2006 P1 McNaught, using data from the SOHO LASCO C3 coronagraph.
O. Price +7 more
semanticscholar +1 more source
Actin filament attachments for sustained motility in vitro are maintained by filament bundling. [PDF]
PLoS ONE, 2012 We reconstructed cellular motility in vitro from individual proteins to investigate how actin filaments are organized at the leading edge. Using total internal reflection fluorescence microscopy of actin filaments, we tested how profilin, Arp2/3, and ...
Xiaohua Hu, Jeffrey R Kuhn
doaj +1 more source
The Comet Assay: Tails of the (Un)expected. Use of the comet assay in pharmaceutical development.
Frontiers in Genetics, 2015 In genotoxicity testing of pharmaceuticals the rodent alkaline comet assay is being increasingly used as a second in vivo assay in addition to the in vivo micronucleus assay to mitigate in vitro positive results as recommended by regulatory guidance.
Bas-jan Van Der Leede
doaj +1 more source
Frontiers in Genetics, 2015 In the alkaline comet assay, cells are embedded in agarose, lysed, and then subjected to further processing including electrophoresis at high pH (>13). We observed very large variations of mean comet tail lengths of cell samples from the same population ...
Gunnar Brunborg
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The spectrin cytoskeleton is crucial for adherent and invasive bacterial pathogenesis. [PDF]
PLoS ONE, 2011 Various enteric bacterial pathogens target the host cell cytoskeletal machinery as a crucial event in their pathogenesis. Despite thorough studies detailing strategies microbes use to exploit these components of the host cell, the role of the spectrin ...
Tyson Ruetz +2 more
doaj +1 more source
MED1, a novel binding partner of BRCA1, regulates homologous recombination and R-loop processing
Scientific Reports, 2022 Homologous recombination (HR) is a major repair pathway of DNA double-strand breaks and is closely related to carcinogenesis. HR deficiency has been established as a therapeutic target.
Harunori Honjoh +15 more
doaj +1 more source