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Autophagosomes form at ER–mitochondria contact sites
TLDR
It is shown that autophagosomes form at the ER–mitochondria contact site in mammalian cells, and new insight is provided into organelle biogenesis by demonstrating that the ER-resident SNARE protein syntaxin 17 (STX17) binds ATG14 and recruits it to the ER—mitochondia contact site.
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Meiotic Proteins Bqt1 and Bqt2 Tether Telomeres to Form the Bouquet Arrangement of Chromosomes
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Nedd5, a mammalian septin, is a novel cytoskeletal component interacting with actin-based structures.
TLDR
The mouse Nedd5 gene encodes a 41.5-kD GTPase similar to the Saccharomyces and Drosophila septins essential for cytokinesis, which localizes to fibrous or granular structures depending on the growth state of the cell and appears to physically contact actin bundles and focal adhesion complexes.
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Identification and Characterization of Nuclear Pore Complex Components in Arabidopsis thaliana[W][OA]
TLDR
Surprisingly, plant nucleoporins shared a similar domain organization to their vertebrate (human) and yeast (Saccharomyces cerevisiae) counterparts and exhibited higher sequence homology to vertebrate nucleoparins than to yeast nucleopOrins.
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Oscillatory nuclear movement in fission yeast meiotic prophase is driven by astral microtubules, as revealed by continuous observation of chromosomes and microtubules in living cells.
TLDR
A model in which the oscillatory nuclear movement is mediated by dynamic instability and selective stabilization of astral microtubules is proposed, which is based on data from fission yeast meiotic prophase.
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Telomere-led premeiotic chromosome movement in fission yeast.
TLDR
The movement of chromosomes that precedes meiosis was observed in living cells of fission yeast by fluorescence microscopy and the clustering of telomeres is reminiscent of the bouquet structure of meiotic-prophase chromosomes observed in higher eukaryotes, which suggests that telomere perform specific functions required for premeiotic chromosomal events generally in eucaryotes.
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Recruitment of the autophagic machinery to endosomes during infection is mediated by ubiquitin
After bacterial invasion, ubiquitin is conjugated to host endosomal proteins and recognized by the autophagic machinery independent of LC3.
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Distinct functional domains in emerin bind lamin A and DNA-bridging protein BAF.
TLDR
The demonstration that emerin binds directly to barrier-to-autointegration factor (BAF), a DNA-bridging protein, provides proof in principle that all LEM-domain nuclear proteins can interact with BAF, with interesting implications for chromatin attachment to the nuclear envelope.
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BAF is required for emerin assembly into the reforming nuclear envelope.
TLDR
It is concluded that BAF is required for the assembly of emerin and A-type lamins at the reforming NE during telophase, and may mediate their stability in the subsequent interphase.
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Dynamics of homologous chromosome pairing during meiotic prophase in fission yeast.
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