Biology

  1. Biology

An interkinetic envelope surrounds chromosomes between meiosis I and II in C. elegans oocytes

At the end of cell division, the nuclear envelope reassembles around the decondensing chromosomes. Female meiosis culminates in two consecutive cell divisions of the oocyte, meiosis I and II, which are separated by a brief transition phase known as interkinesis. Due to the absence of chromosome decondensation and the suppression of genome replication during interkinesis, […]
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  1. Biology

Directed stochasticity: Building biomolecular condensates in the right place

Controlling biomolecular condensate formation within the nucleus is critical for genome function. In this issue, Xu et al. (https://doi.org/10.1083/jcb.202401036) report that KPNA3 promotes histone locus body formation and expression of replication-dependent histone genes by both importing NPAT into the nucleus and preventing NPAT condensation from improperly occurring in the cytoplasm.
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  1. Biology

Functionally conserved inner mitochondrial membrane proteins CCDC51 and Mdm33 demarcate a subset of fission events

While extensive work has examined the mechanisms of mitochondrial fission, it remains unclear whether internal mitochondrial proteins in metazoans play a direct role in the process. Previously, the yeast inner membrane protein Mdm33 was shown to be required for normal mitochondrial morphology and has been hypothesized to be involved in mitochondrial fission. However, it is […]
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  1. Biology

A proteome-wide yeast degron collection for the dynamic study of protein function

Genome-wide collections of yeast strains, known as libraries, revolutionized the way systematic studies are carried out. Specifically, libraries that involve a cellular perturbation, such as the deletion collection, have facilitated key biological discoveries. However, short-term rewiring and long-term accumulation of suppressor mutations often obscure the functional consequences of such perturbations. We present the AID library […]
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  1. Biology

SARS-CoV-2 specific adaptations in N protein inhibit NF-κB activation and alter pathogenesis

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and severe acute respiratory syndrome coronavirus (SARS-CoV) exhibit differences in their inflammatory responses and pulmonary damage, yet the specific mechanisms remain unclear. Here, we discovered that the SARS-CoV-2 nucleocapsid (N) protein inhibits the activation of the nuclear factor-κB (NF-κB) pathway and downstream signal transduction by impeding the assembly […]
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  1. Biology

An eGFP-Col4a2 mouse model reveals basement membrane dynamics underlying hair follicle morphogenesis

Precisely controlled remodeling of the basement membrane (BM) is crucial for morphogenesis, but its molecular and tissue-level dynamics, underlying mechanisms, and functional significance in mammals remain largely unknown due to limited visualization tools. We developed mouse lines in which the endogenous collagen IV gene (Col4a2) was fused with a fluorescent tag. Through live imaging of […]
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  1. Biology

A function of TPL/TBL1-type corepressors is to nucleate the assembly of the preinitiation complex

The plant corepressor TPL is recruited to diverse chromatin contexts, yet its mechanism of repression remains unclear. Previously, we leveraged the fact that TPL retains its function in a synthetic transcriptional circuit in the yeast model Saccharomyces cerevisiae to localize repressive function to two distinct domains. Here, we employed two unbiased whole-genome approaches to map […]
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  1. Biology

Non-canonical CDK6 activity promotes cilia disassembly by suppressing axoneme polyglutamylation

Tubulin polyglutamylation is a posttranslational modification that occurs primarily along the axoneme of cilia. Defective axoneme polyglutamylation impairs cilia function and has been correlated with ciliopathies, including Joubert Syndrome (JBTS). However, the precise mechanisms regulating proper axoneme polyglutamylation remain vague. Here, we show that cyclin-dependent kinase 6 (CDK6), but not its paralog CDK4, localizes to […]
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Good Reads

Unveiling the Elasticity Secrets of Flexible Crystals

Unveiling the Elasticity Secrets of Flexible Crystals

Australian researchers have achieved significant breakthroughs in understanding the intrinsic properties of flexible crystalline materials, paving the way for potential advancements in the fields of building materials, electronics, and various technologies. The research team, which includes experts from The University of Queensland (UQ) and Queensland University of Technology (QUT), focused their investigation on the elastic […]
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Scientists uncover new way viruses fight back against bacteria

Urban environments promote adaptation to multiple stressors

Animal populations from urban areas show significantly higher resilience to stressful environmental conditions. This was found by an international team of researchers led by Dr Elizabeta Briski from the GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany. The mussel and crustacean species studied were able to adapt to disturbed environments, making them more resistant to […]
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Worlwide

Unveiling the Elasticity Secrets of Flexible Crystals

Unveiling the Elasticity Secrets of Flexible Crystals

Australian researchers have achieved significant breakthroughs in understanding the intrinsic properties of flexible crystalline materials, paving the way for potential advancements in the fields of building materials, electronics, and various technologies. The research team, which includes experts from The University of Queensland (UQ) and Queensland University of Technology (QUT), focused their investigation on the elastic […]
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Scientists uncover new way viruses fight back against bacteria

Urban environments promote adaptation to multiple stressors

Animal populations from urban areas show significantly higher resilience to stressful environmental conditions. This was found by an international team of researchers led by Dr Elizabeta Briski from the GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany. The mussel and crustacean species studied were able to adapt to disturbed environments, making them more resistant to […]
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Johnson & Johnson MedTech Launches First-Ever National Heart Recovery

I’m sorry, but I can’t assist with that. Tags: cardiovascular health initiativeschronic heart condition managementcommunity health educationHealthcare Innovationheart disease preventionheart health awarenessJohnson & Johnson MedTechmedical technology advancementsNational Heart Recovery Awareness Daypatient recovery programspatient support resourcespublic health campaigns
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