Bacteria and archaea use protein filament systems to organize cellular processes in time and space. Filaments can act as static scaffolds or as dynamic motors. In some cases, these filament systems ...
The original and fundamental causative factor that eventually led to the emergence of eukaryotic cells was the continuous increase of the cell-size of archaeal ancestor of eukaryotic cells 1. The ...
Most of us will probably be able to recall at least vaguely that a molecule called ATP is essential for making our bodies move, but this molecule is only a small part of a much larger system. Although ...
Bacteria are different from you and me. Always the minimalists, they lack features that plant and animal cells usually can’t do without: a nucleus, special organelles, and an internal skeleton made of ...
Researchers at the European Molecular Biology Laboratory (EMBL) and the University of Colorado have now obtained the first 3-D visualization of a complete eukaryotic cell at a resolution high enough ...
Eukaryotes—fungi, plants, us—are complex. Our large cells are characterized by their different compartments, many of which are neatly enclosed within a boundary of membrane. These compartments contain ...
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Origin of life: How a special group of single-celled organisms laid the foundation for complex cells
Ten years ago, nobody knew that Asgard archaea even existed. In 2015, however, researchers examining deep-sea sediments discovered gene fragments that indicated a new and previously undiscovered form ...
Many aspects of plant development, including patterning and tropisms, are largely dependent on the asymmetric distribution of the plant signaling molecule auxin. Auxin transport inhibitors (ATIs), ...
A lot happened in the hundreds of millions years separating the first and last eukaryotic common ancestors, but when and how most features arose remains a mystery. Eukaryogenesis is broadly defined as ...
One of the most important and puzzling events in the evolution of life has been the origin of the first complex eukaryotic cells. Almost all lifeforms that we can perceive with the naked eye, such as ...
Antibiotics have saved millions of lives from infectious diseases and are considered one of the most important discoveries of the 20th century. However, as the use (and abuse) of antibiotics has ...
Like our body every cell has a skeleton that provides it with a shape, confers rigidity and protects its fragile inner workings. The cytoskeleton is built of long protein filaments that assemble into ...
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