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Cellular dumping site is not garbage after all

Scientists have discovered that P-bodies play a crucial role in regulating the translation of mRNA molecules into proteins. The study found that P-bodies can store and recondition pre-used mRNA molecules, allowing cells to control protein production. This new understanding may provide insights into diseases like cancer.

SourceUniversity of Arizona·JournalCell·DateSep 22, 2005

Molecular trigger for Huntington's disease found

A study published in Neuron found that the abnormal HD protein selectively binds to and increases the level of p53 in cells, leading to increased cell death and mitochondrial dysfunction. This overactivation also causes behavioral abnormalities in mice engineered to have HD.

SourceCell Press·JournalNeuron·DateJul 6, 2005

Researchers discover chemical compounds that affect plant growth

A team of researchers has identified 219 chemicals that affect plant growth due to gravity, leading to a better understanding of protein transportation and genetic signaling in plant cellular membranes. The discovery uses chemical genomics to study the link between endomembrane system components and gravitropic response.

SourceUniversity of California - Riverside·JournalProceedings of the National Academy of Sciences·DateMar 15, 2005

Plants, animals share molecular growth mechanisms

Researchers at Purdue University have identified a plant protein complex that triggers cellular growth and development, similar to animal development. The discovery opens new avenues for understanding plant growth and potentially designing plants with enhanced protection against insects and disease.

SourcePurdue University·JournalThe Plant Cell·DateFeb 23, 2005

Clues to the puzzle of 'talking' root cells

Duke University researchers discovered that the Short-Root protein moves from one cell to another through an active process that recognizes signals, not just random diffusion. This finding provides a promising pathway for understanding how complex tissues develop from individual cells in both plants and animals.

SourceDuke University·JournalCurrent Biology·DateOct 25, 2004

Tobacco promising factory for biopharmaceuticals

Transgenic tobacco plants produce recombinant proteins economically, benefiting from plant-made vaccines with reduced viral screening costs. The process of recovering and purifying these proteins is expensive, requiring development of more economical techniques to lower production costs.

Research reveals role of gene in infertility

The RAD51 gene is crucial for repairing DNA breaks during recombination, a process vital for sexual reproduction. In humans, defects in this process can cause infertility, miscarriages, or birth defects.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateJul 21, 2004

Insights gained from molecular modeling may lead to better insecticides

Researchers used molecular modeling to study the detoxifying proteins of black swallowtail butterflies and corn earworms. The earworm's protein is more flexible, allowing it to bind to and detoxify six different plant defense chemicals and three common insecticides, making it a master of adapting to new pesticides and host plants.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateFeb 24, 2004

Molecular mechanisms that trigger flowering in spring

The CONSTANS protein plays a central role in triggering flowering in plants, accumulating in the nuclei of cells under long days but not in short days. Researchers at the Max Planck Institute have discovered that specific photoreceptors detect blue and far-red light to stabilize CONSTANS protein, allowing it to activate flowering genes.

SourceMax-Planck-Gesellschaft·JournalScience·DateFeb 13, 2004

A new hope for heavy metal contaminated soils

Researchers at Max Planck Institute and Leibniz Institute have identified key metal homeostasis proteins in a hyperaccumulator plant species, paving the way for cost-effective cleanup technologies. These proteins play a crucial role in detoxifying metals in roots and shoots, allowing plants to accumulate heavy metals in their leaves wh...

SourceMax-Planck-Gesellschaft·JournalThe Plant Journal·DateDec 4, 2003

MicroRNA targets: How big is the iceberg?

Researchers have used a bioinformatics approach to identify additional microRNA targets in fruit fly Drosophila, increasing the number of known targets from three to over 60. The study provides an important step towards understanding how microRNAs affect protein composition in animal cells.

SourcePLOS·JournalPLOS Biology·DateOct 13, 2003

Designer proteins

Researchers at Duke University have successfully redesigned sensor proteins that can detect a range of molecules, including explosives like TNT and neurotransmitters. This breakthrough could lead to new technologies for monitoring diabetes and locating underwater robots.

Critical early-defense trigger in plants found

Researchers at Cornell University have discovered a gene that codes for an enzyme producing nitric oxide, a hormone triggering plant's defense against pathogens. The discovery provides new insights into the biochemical and genetic pathways enabling plants to protect themselves from disease.

SourceCornell University·JournalCell·DateMay 15, 2003

Researchers: Protein family key to helping plants adapt

Researchers at Purdue University have discovered a crucial protein family in plants that helps them adapt to stressful conditions. The AtCPL family, which controls gene activation, plays a vital role in regulating plant responses to environmental stresses such as salinity, cold, and drought.

SourcePurdue University·JournalProceedings of the National Academy of Sciences·DateOct 11, 2002

Research reveals how cells protect against stress

Scientists have discovered a chain of cellular events that occurs in plant cells when exposed to environmental stress, ultimately leading to the production of protective proteins. The research, led by Sarah M. Assmann, found that a hormone called abscisic acid regulates the processing of RNA molecules involved in stress response.

SourcePenn State·JournalNature·DateAug 14, 2002

New gene discovered for male fertility in plants

Scientists at Penn State University have identified a new gene essential for pollen production in flowering plants. The team used genetic techniques to discover the gene, which is necessary for the formation of cells required for pollen production.

SourcePenn State·JournalGenes & Development·DateJul 31, 2002

Illuminating how plants adapt to light

A team of scientists led by Joanne Chory and Detlef Weigel studied the natural variation in light sensitivity across different Arabidopsis varieties. They found that strains from lower latitudes were less sensitive to light, and that specific genetic mutations affected the molecule's ability to transmit signals. The study sheds light o...

SourceHoward Hughes Medical Institute·JournalNature Genetics·DateNov 29, 2001