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Although this ancestral replicase appears to have been lost, key aspects of RNA-catalyzed RNA replication can be studied by proxy with the use of modern RNA enzymes (ribozymes) generated by in vitro evolution. However, none of these RPRs was capable of self-replication.
All cells make proteins in two steps: DNA is transcribed into messenger RNA, which is then translated into protein. It is the untouchable foundation of molecularbiology. The ribosome is a molecular printer that threads ‘beads’ onto a protein string. This is simple. And we want to subvert this.
In the paper, researchers from Johns Hopkins University and elsewhere found a natural long-form transactivating CRISPR RNA (tracr-L) in Streptococcus pyogenes that functions to downregulate its endogenous CRISPR-Cas9 system. But altering the tracr-L with genetic engineering to make it function more like a guide RNA increased CRISPR-Cas9 cuts.
All cells make proteins in two steps: DNA is transcribed into messenger RNA, which is then translated into protein. It is the untouchable foundation of molecularbiology. The ribosome is a molecular printer that threads ‘beads’ onto a protein string. This is simple. And we want to subvert this.
What are the key findings of Circio’s in vivo proof-of-concept for its circVec circular RNA platform technology compared to conventional mRNA-based expression with DNA vectors? Circular RNA (circRNA) has two major advantages versus mRNA in a vector-expression context.
Kamal Nahas highlights the biological limits on cell division speed and explores how we might engineer cells to grow faster. coli to clone DNA, engineering this microbe to divide more quickly would greatly accelerate research. Proteins are colored blue and RNA molecules are colored orange and yellow.
When choosing my bachelor’s degree, the choice was between pursuing a career in biology or in computer science. Biology won that battle, and I pursued a bachelor’s and master’s degree in biochemistry and molecularbiology. I had my first scientific encyclopaedia around the age of seven.
A gene encoding green fluorescent protein was placed alongside one of the three promoters, and as the engineered cells cycled from one gene to the next, they blinked between green—dark—green—dark. These papers became the standard-bearers for a new scientific field: synthetic biology. Elowitz: It’s a mix.
She has played a key role inbuilding the target identification platform and a proprietary database of transcriptome-wide, functional RNA structures. Having a combination of computational skills & scientific knowledge such as molecularbiology, genomics is also important.
.” Wellcome Collection , London I wrapped up my series on “30 Days of Great Biology Papers.” ” This was a series of tweets in which I told brief stories behind seminal papers, mostly in molecularbiology and biophysics. How do transcription factors couple up with the correct RNA molecule?
.” Wellcome Collection , London I wrapped up my series on “30 Days of Great Biology Papers.” ” This was a series of tweets in which I told brief stories behind seminal papers, mostly in molecularbiology and biophysics. How do transcription factors couple up with the correct RNA molecule?
At Alltrna, we are developing tRNA medicines where one engineered tRNA medicine can precisely correct a type of mutation across thousands of genetic diseases driven by the same genetic mutation, thereby providing precision treatment to patients, agnostic to the prevalence of the disease. Before joining Flagship, Theonie received her Ph.D.
But the technologies devised in the process of trying may revolutionize other areas of science, especially reproductive biology. Biology is a Burrito. The central dogma is often depicted as DNA→RNA→protein, but it’s much more: A biophysical marvel inside the smallest of vessels. Hoist the colors!
I’m writing long essays for Asimov every other week and my work at MIT, where I’m helping to design a genetic engineering curriculum for undergraduates, has reached its crescendo. Anyone who has tried to engineer a cell knows how tedious it can be. And it’s been my life for the last few weeks. A Mycoplasma cell.
I’m writing long essays for Asimov every other week and my work at MIT, where I’m helping to design a genetic engineering curriculum for undergraduates, has reached its crescendo. Anyone who has tried to engineer a cell knows how tedious it can be. And it’s been my life for the last few weeks. A Mycoplasma cell.
But in the 1950s, at the dawn of molecularbiology, scientists gained a new appreciation for it after searching for organisms that were easy to work with and quick to grow. 1 This singular organism has become the de facto microbe for molecularbiology. Before World War II, few scientists used E. coli in their experiments.
By Matthew Cobb The Central Dogma is a linchpin for understanding how cells work, and yet it is one of the most widely misunderstood concepts in molecularbiology. Many students are taught that the Central Dogma is simply “DNA → RNA → protein.”
Credit: Bruce Wetzel and Harry Schaefer, NCI, NIH | License Progress in biology is arguably moving faster today than at any point in the course of human history. Engineeredbiology has profound potential to change how we live, but the field has become broad, bloated, nebulous. Journal of MolecularBiology (1961).
Credit: Bruce Wetzel and Harry Schaefer, NCI, NIH | License Last edit: 13 September 2023 Progress in biology is arguably moving faster today than at any point in the course of human history. Engineeredbiology has profound potential to change how we live, but the field has become broad, bloated, nebulous. Nature (2005).
I’ve chosen these two because I think they are the linchpin by which we’ll be able to build broadly useful AI models for cell and molecularbiology. Scientists are already building a model that can, for example, look at which RNA molecules are expressed in a cell at t=0 and predict how those molecules will change at t=1.
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