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Nematode proteins shed light on infertility

Researchers discovered a trio of protein segments guiding chromosomal interactions in nematodes, shedding light on the complex process. The study, published in PNAS, provides new insights into meiosis and infertility, with implications for human reproductive health.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJan 3, 2024

Evidence for new theory of genetic recombination

Researchers found evidence supporting a new theory on how chromosome recombination is regulated during sexual reproduction. By manipulating protein expressions in the model plant Arabidopsis thaliana, they discovered that boosting HEI10 levels significantly increased crossovers, while disrupting ZYP1 expression had a similar effect.

SourceMax-Planck-Gesellschaft·JournalNature Communications·TypeExperimental study·DateOct 24, 2022

SARS-CoV-2 protein targeted by immune cells also triggers response in bat Coronaviruses

Researchers at Johns Hopkins Medicine discovered a peptide on the SARS-CoV-2 spike protein that triggers an immune response in humans and is also recognized by cells of the immune system, suggesting potential for protection against future zoonotic outbreaks. The study supports the development of multivalent vaccines against a broad spe...

SourceJohns Hopkins Medicine·JournalJournal of Clinical Investigation·DateFeb 16, 2022

The common ancestor of species was rod-shaped

The study found that the common ancestor of Deinococcus species was rod-shaped, with six conserved genes (MreB, MreC, MreD, MrdA, RodA, and RodZ) present in all rod-shaped species. Phylogenetic analysis revealed that major gene loss occurred four times during evolution, generating spherical shape species.

SourceBentham Science Publishers·JournalThe Open Bioinformatics Journal·DateNov 16, 2018

A better model for Parkinson's disease

Researchers at EPFL create cellular and mouse models that accurately reproduce the evolution of Parkinson's disease, using insights into protein clumps called Lewy bodies. The new models can propel research and drug development, offering a powerful tool for rapid screening of molecular pathways involved in the disease.

SourceEcole Polytechnique Fédérale de Lausanne·JournalProceedings of the National Academy of Sciences·DateFeb 1, 2016

Plants feel the force

Researchers at Washington University in St. Louis have identified seven genes encoding mechanosensitive channels in Arabidopsis thaliana, a small flowering plant related to mustard and cabbage. These channels are believed to play a crucial role in plant movement and response to physical stimuli.

DNA-repair machine maintains genomic stability

Mouse cells lacking nonhomologous DNA end-joining (NHEJ) pathway show high levels of chromosome breakage and genetic material rearrangement, highlighting its critical role in maintaining genomic stability. The study also reveals that NHEJ is essential for repairing damaged chromosomes induced by ionizing radiation.

SourceHoward Hughes Medical Institute·JournalProceedings of the National Academy of Sciences·DateJun 5, 2000