Add BrightSurf on Google Email

Researchers uncover NSMF protein’s role in relieving DNA replication stress

Researchers discovered NSMF protein's role in alleviating DNA replication stress by displacing weakly bound RPA proteins and promoting phosphorylation. This mechanism accelerates relief of replication stress, offering a new direction for treating various diseases, including cancer and age-related conditions.

Fishing for proteins: Scientists use new optical tweezer technology to study DNA repair

Researchers used C-trap technology to investigate how different DNA repair proteins identify and bind to their respective forms of damage. They found that some proteins arrived at the damage site together and departed together, while others showed surprising variability in their association and dissociation patterns. The study provides...

SourceUniversity of Pittsburgh·JournalNucleic Acids Research·TypeExperimental study·DateMar 1, 2023

X-ray light reveals how virus responsible for COVID-19 covers its tracks, eluding the immune system

A new study uses serial femtosecond X-ray crystallography to reveal the structure of NendoU protein at room temperature. The resulting high-resolution image shows that the protein's flexibility plays a crucial role in its functional mechanism, which is essential for designing antiviral drugs against SARS-CoV-2.

SourceArizona State University·JournalStructure·TypeExperimental study·DateJan 10, 2023

Determining how and why cells make decisions

Researchers at Texas A&M University are developing mathematical models to predict and control cellular differentiation. They created a technique using mix-and-read assays, which allow for the detection of key signaling proteins in live tissues. This method enables researchers to gain a deeper understanding of how cells make decisions.

SourceTexas A&M University·JournalACS Omega·DateJul 1, 2022

Bioengineered nanoparticles show promise for fibrinogen manufacture, says Journal of Pharmaceutical Analysis study

Researchers developed a novel polymeric nanoparticle that selectively binds to fibrinogen in human plasma, offering a simpler and less expensive way to manufacture fibrinogen concentrate. This breakthrough could lead to the creation of more efficient fibrinogen-specific affinity reagents for drug development.

SourceCactus Communications·JournalJournal of Pharmaceutical Analysis·TypeExperimental study·DateJan 13, 2022

Neural network detects protein-peptide binding sites to kick-start peptide drug discovery

Researchers have developed a neural network model called BiteNetPp to detect protein-peptide binding sites, enabling the design of peptide-based drugs. The model consistently outperforms existing methods and can analyze a single protein structure in under a second, making it suitable for large-scale studies.

SourceSkolkovo Institute of Science and Technology (Skoltech)·JournalJournal of Chemical Information and Modeling·TypeData/statistical analysis·DateAug 5, 2021

Solving a DNA mystery

A team of researchers from UC Santa Barbara and LMU found that enzymes can cause liquid droplets formed from DNA to bubble unexpectedly. The bubbles occur when the enzyme penetrates inside the droplet, leading to an osmotic effect that causes water to be drawn in, resulting in a swelling phenomenon.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateJul 28, 2020

Proteins use a lock and key system to bind to DNA

Researchers discovered that proteins use the DNA's three-dimensional structure as a type of keyhole to select specific binding sites, rather than just patterns in the genome's code. Over 80% of proteins bind to a specific shape pattern in the genome, which helps explain how they avoid confusing different sequences.

SourceGladstone Institutes·JournalCell Systems·DateJan 16, 2019

Catching the right fish

Researchers at ETH Zurich have developed a new screening method that speeds up the search for drugs using a 35 million compound DNA-encoded chemical library. The library consists of drug candidates with a stable ring-shaped basic structure and varied attachments, allowing for highly-specific binding to proteins.

SourceETH Zurich·JournalNature Chemistry·DateMar 28, 2018

Breaking the protein-DNA bond

A Northwestern University study found that free-floating proteins can break up protein-DNA bonds at a single-binding site, disrupting gene expression. This discovery challenges previous beliefs about the stability of protein-DNA interactions and has implications for understanding biological processes in living cells.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateApr 4, 2017

Frozen chemistry controls bacterial infections

Scientists at Umeå University discovered a protein interaction that slows down a key chemical reaction in the bacteria Yersinia pseudotuberculosis. This finding opens up new avenues for studying the regulation of bacterial virulence, which can help develop new treatments for infections.

SourceUmea University·JournalJournal of Biological Chemistry·DateMar 3, 2017

Temperature, entropy and protein binding

Researchers investigate protein binding mechanisms, including the recently discovered fly-casting method, which accelerates binding by unfolding a protein chain. Temperature influences capture radius, with optimal conditions found at transition temperatures between folding and unfolding.

Fruit flies and test tubes open new window on Alzheimer's disease

A team of scientists discovered a molecule that can prevent a toxic protein involved in Alzheimer's disease from building up in the brain. Using fruit flies engineered to develop a fly equivalent of Alzheimer's disease, they showed that the same molecule effectively cures the insects of the disease.

SourcePLOS·JournalPLOS Biology·DateMar 15, 2010

A pocketful of uranium

Scientists create a protein that selectively binds to uranium, offering potential methods for detecting and treating uranium poisoning. The protein is based on a nickel-binding protein from E. coli and has been engineered to bind to uranium instead.

SourceWiley·DateFeb 12, 2009

Protein Escort Service

A Weizmann Institute study suggests that master-key antibodies interact with proline on proteins and protein fragments to escort them out of the body. This research provides scientific basis for theory that these antibodies may remove broad range of unneeded proteins without affecting beneficial ones.

SourceAmerican Committee for the Weizmann Institute of Science·JournalProceedings of the National Academy of Sciences·DateAug 13, 1997