#central-dogma

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Medicine
fromNature
4 days ago

DNA damage burden causes selective CUX2 neuron loss in neuroinflammation - Nature

DNA damage in glial cells and neurons contributes to ageing and neurodegeneration, impacting neuronal function and leading to cell death.
Science
fromNature
1 week ago

Zombieland: Genome transplant brings 'dead' bacteria back to life

Researchers have revived 'dead' bacterial cells by replacing their DNA with a working genome from another species, advancing genome engineering.
OMG science
fromNature
1 week ago

Can a mouse be cloned indefinitely? Decades-long experiment has answers

Asexual reproduction in mice is unsustainable due to accumulating mutations, limiting the potential for successful cloning.
Science
fromNature
2 weeks ago

Synthetic circuits for cell ratio control - Nature

Synthetic biology enables artificial cell differentiation and division of labor by engineering genetic and epigenetic circuits that mimic natural stem cell asymmetric division processes.
Science
fromwww.nature.com
2 weeks ago

Molecular basis of oocyte cytoplasmic lattice assembly

Cryo-EM reveals the cytoplasmic lattice in mammalian oocytes comprises repeating U-shaped basket and adapter ring units with 14 protein subunits, essential for oocyte maturation and embryonic development.
fromwww.nature.com
1 month ago

BCDX2CX3 and DX2CX3 complexes assemble and stabilize RAD51 filaments

Central to HR is the RAD51 recombinase, whose assembly into a nucleoprotein filament is governed by five RAD51 paralogs (RAD51B, RAD51C, RAD51D, XRCC2, XRCC3). Mutations in any of these proteins predispose individuals to multiple cancers or genetic disorders. These paralogs are thought to form two functionally separate complexes, BCDX2 and CX3, that act independently at different stages of HR.
Science
fromNature
3 weeks ago

Daily briefing: Protein folding caught in real time

Scientists directly measured individual protein folding times and found no relationship between protein sequence or size and folding duration, revealing unexpected complexity in protein behavior.
OMG science
fromNature
1 month ago

Why 'quantum proteins' could be the next big thing in biology

Fluorescent proteins from crystal jellyfish are being transformed into quantum bits to create highly sensitive quantum sensors for biological applications.
fromwww.nature.com
1 month ago

Genetically encoded assembly recorder temporally resolves cellular history

GEMINI leverages a computationally designed protein assembly as an intracellular memory device to record the history of individual cells. GEMINI grows predictably within live cells, capturing cellular events as tree-ring-like fluorescent patterns for imaging-based retrospective readout. Absolute chronological information of activity histories is attainable with hour-level accuracy.
Science
fromArs Technica
1 month ago

Large genome model: Open source AI trained on trillions of bases

Evo 2, an AI system trained on trillions of base pairs from all life domains, can identify genes, regulatory sequences, and splice sites in complex genomes including humans.
fromNews Center
1 month ago

AI Model May Improve RNA Sequencing Research - News Center

Scientists in the laboratory of Rendong Yang, PhD, associate professor of Urology, have developed a new large language model that can interpret transcriptomic data in cancer cell lines more accurately than conventional approaches, as detailed in a recent study published in Nature Communications. Long-read RNA sequencing technologies have transformed transcriptomics research by detecting complex RNA splicing and gene fusion events that have often been missed by conventional short-read RNA-sequencing methods.
Cancer
Philosophy
fromAeon
2 months ago

Groundbreaking visuals capture how our bodies repair damaged DNA | Aeon Videos

Drew Berry creates striking biomedical animations that visualize microscopic biological processes like DNA repair, revealing intricate evolution-shaped cellular mechanisms.
Science
fromNature
1 month ago

A membrane-bound nuclease directly cleaves phage DNA during genome injection - Nature

SNIPE is a membrane-bound nuclease defense system in bacteria that directly targets foreign nucleic acids to prevent phage infection through a novel mechanism distinct from established defense pathways.
Medicine
fromwww.nature.com
1 month ago

Pre-incision structures reveal principles of DNA nucleotide excision repair

Nucleotide excision repair removes bulky DNA lesions via coordinated recognition, verification, excision, and resynthesis to maintain genome stability and prevent cancer and premature ageing.
fromNature
1 month ago

AI tools can design genomes. Will they upend how life evolves?

Biology is undergoing a transformation. After centuries of studying life as it evolves naturally, researchers are now using a combination of computation and genome engineering to intervene, generating new proteins and even whole bacteria from scratch. The use of artificial-intelligence tools to design biological components, an approach known as generative biology, is set to turbocharge this area of research. Just last year, scientists used AI-assisted design to produce artificial genes that can be expressed in mammalian cells.
Science
Medicine
fromWIRED
2 months ago

Crispr Pioneer Launches Startup to Make Tailored Gene-Editing Treatments

Aurora Therapeutics plans to scale personalized CRISPR gene-editing therapies for rare diseases using a new FDA 'plausible mechanism' approval pathway.
fromArs Technica
1 month ago

Have we leapt into commercial genetic testing without understanding it?

Martschenko's argument is largely that genetic research and data have almost always been used thus far as a justification to further entrench extant social inequalities. But we know the solutions to many of the injustices in our world-trying to lift people out of poverty, for example-and we certainly don't need more genetic research to implement them. Trejo's point is largely that more information is generally better than less.
Science
Science
fromNature
2 months ago

Construction of complex and diverse DNA sequences using DNA three-way junctions - Nature

DNA writing remains limited by short oligo synthesis and two-way junction assembly methods, hindering affordable, scalable construction of large, complex synthetic DNA.
Science
fromNews Center
2 months ago

Understanding the Link Between Nucleotide Metabolism and Chromatin Assembly - News Center

PRPS enzymes coordinate nucleotide synthesis and early histone maturation, synchronizing DNA replication and chromatin assembly through dual metabolic and regulatory roles.
Science
fromNews Center
2 months ago

New Underlying Mechanisms May Support Proper Transcriptional Regulation and Improve - News Center

New mechanisms controlling transcription initiation and elongation involving BET family proteins were identified, revealing pathways that could enable improved targeted therapies for diseases including cancer.
Science
fromNature
2 months ago

A 'time capsule for cells' stores the secret experiences of their past

Engineered TimeVaults capture and store cellular mRNA to continuously record past transcriptional activity, enabling retrospective study of cellular history and responses.
fromwww.bbc.com
2 months ago

AI model from Google's DeepMind reads recipe for life in DNA

Called AlphaGenome, the model could help scientists discover why subtle differences in our DNA put us at risk of conditions such as high blood pressure, dementia and obesity. It could also dramatically accelerate our understanding of genetic diseases and cancer. The developers of the model acknowledge it's not perfect, but experts have described it as "an incredible feat" and "a major milestone".
Science
#figure-duplication
Science
fromwww.nature.com
2 months ago

Scalable and multiplexed recorders of gene regulation dynamics across weeks

CytoTape enables multiplexed, genetically encoded, spatiotemporally scalable recording of gene regulation dynamics in single cells for up to three weeks with minute-scale resolution.
Science
fromwww.scientificamerican.com
2 months ago

Google DeepMind unleashes new AI to investigate DNA's dark matter'

AlphaGenome predicts functional effects of mutations in long noncoding DNA sequences up to one million base pairs, helping interpret genomic variants for disease research.
Science
fromMail Online
2 months ago

Scientists use AI to create a virus never seen before

Scientists used AI and gene-assembly tools to create Evo-Φ2147, a novel 11-gene virus designed to kill pathogenic E. coli.
Science
fromNature
2 months ago

'Remote controlled' proteins illuminate living cells

Engineered magnetically sensitive fluorescent proteins enable remote modulation of brightness in cells and animals, offering quantum-based control for biosensors and potential therapies.
Science
fromArs Technica
1 month ago

Tiny, 45 base long RNA can make copies of itself

A 45-base RNA ribozyme can self-replicate, supporting RNA-based origin-of-life scenarios where RNA carried both genetic information and catalytic functions.
Science
fromNews Center
2 months ago

New Underlying Mechanisms May Support Proper Transcriptional Regulation and Improve Targeted Therapies - News Center

BET proteins, particularly BRD4, regulate transcription initiation and elongation independently of bromodomains, with implications for targeted therapeutic development.
Science
fromwww.scientificamerican.com
2 months ago

How long you live may depend much more on your genes than scientists thought

Heritability of human lifespan roughly doubles to about 50% when extrinsic mortality is removed, showing a stronger genetic influence on intrinsic aging.
Science
fromNature
2 months ago

RNA-triggered Cas12a3 cleaves tRNA tails to execute bacterial immunity - Nature

Some immune systems inactivate tRNAs to impair viral protein synthesis, and certain Cas nucleases, like LshCas13a, can cleave tRNA anticodon loops.
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