![Effect of temperature on the peptide aggregation process. Left: side view of (ODAP—STEP) bilayer systems with peptides at 0 ns (a) and 500 ns at 353 K (b), 338 K (c), and 323 K (d); KSPFPFAA peptides are shown in mauve, while ODAP and STEP are in gray and green, respectively. Right: number of the clusters as a function of time formed during the 500 ns MD simulation with cutoff 0.6 nm at 353 K (e) (previously reported by the authors in Ref. [44]), 338 K (f), and 323 (g) -- Life](https://i0.wp.com/astrobiology.com/wp-content/uploads/2023/09/structural.png?resize=1200%2C716&ssl=1)
The chemical evolution of biomolecules was clearly affected by the overall extreme environmental conditions found on Early Earth.
genomics
Posted inGenomics, Proteomics, Bioinformatics, Press Release, Space Life Science, Space Physiology & Medicine, Space Stations
NASA’s Biological and Physical Sciences Division Partners with ISSNL on Igniting Innovation
The International Space Station (ISS) National Laboratory is collaborating with NASA on a solicitation to advance research on cancer and other diseases.
Posted inBiochemistry & Organic Chemistry, Biophysics, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life, Status Report
A Definition Schema For Life Level And Some Associated Models
We present a mathematical definition schema for measuring life level that is to give options to describe how much a (generalized) organism is alive. It is just a definition schema, […]
Posted inAstrochemistry, Biochemistry & Organic Chemistry, Genomics, Proteomics, Bioinformatics, Press Release
A New Synergistic Method Can Create Non-canonical Amino Acids By Merging Synthetic Photochemistry With Biocatalysis
New chemistry, new enzymology. With a new method that merges the best of two worlds — the unique and complementary activities of enzymes and small-molecule photochemistry — researchers at UC […]
Posted inBiochemistry & Organic Chemistry, Genomics, Proteomics, Bioinformatics, Nanotechnology & SynBio, Origin & Evolution of Life, Press Release
Missing-link Fold Reveals The Evolutionary Pathway Between RNA Polymerase And Ribosomal Proteins
Numerous molecular machines are required to drive the central dogma of molecular biology. However, the means by which such numerous proteins emerged in the early evolutionary stage of life remains […]
Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Extremeophiles and Extreme Environments, Habitable Zones, Press Release, Venus
Stability Of Nucleic Acid Bases In Concentrated Sulfuric Acid: Implications For The Habitability Of Venus’ Clouds
What constitutes a habitable planet is a frontier to be explored and requires pushing the boundaries of our terracentric viewpoint for what we deem to be a habitable environment.
Posted inBiophysics, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life, Press Release
Artificial Cells Demonstrate That “Life Finds A Way”
“Listen, if there’s one thing the history of evolution has taught us is that life will not be contained. Life breaks free. It expands to new territories, and it crashes […]
Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Origin & Evolution of Life, Press Release
How Urea May Have Been The Gateway To Life
Researchers from ETH Zurich and the University of Geneva have developed a new method that allows them to observe chemical reactions taking place in liquids at extremely high temporal resolution.
Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life, Press Release
Discovery Of Novel Primitive Xeno Nucleic Acids As Alternative Genetic Polymers
The chemical origin of life on Earth is a puzzle that scientists have been trying to piece together for decades. Many hypotheses have been proposed to explain how life came […]
Posted inBiochemistry & Organic Chemistry, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Origin & Evolution of Life, Press Release
New Clues About The Origin Of Complex Life
Thor, the legendary Norse god from the mythological city of Asgard, is not alone. According to groundbreaking research published in the journal Nature, we humans — along with eagles, starfish, […]