Over time, the engulfed cell evolved into modern organelles such as mitochondria and, in the case of photosynthetic eukaryotes, chloroplasts. 2 However, new findings suggest that the origins of ...

Asgard archaea may have led to the evolution of eukaryotic life ETH Zurich researchers identify actin and microtubule structures Findings challenge the three-domain model of life classification ...

By creating a computational framework to model systems of replicating bacterial chromosomes as polymers at 10 ... loop-extrusion serves as a near-universal mechanism for chromosome organization within ...

If that’s the case, the traditional model of three life domains—bacteria ... like proteins—structures long associated with eukaryotic cells. “We found an actin protein in that species ...

In the default model, the graph representing each individual enhancer can be arbitrarily complicated. To show how the ABC Score formula can arise from the default model, we need to impose the further ...

Organelles in cells were originally often independent cells, which were incorporated by host cells and lost their independence in the course of evolution. A team of biologists headed by Professor Dr.

The research indicates that the limitations on the size of proteins has been a crucial trigger in the development of life ...

These experiments show that Asgard tubulins form very similar microtubules, albeit smaller than those in their eukaryotic relatives. However, only a few Lokiarchaeum cells form these microtubules.

All these systems share the same scale invariance." The researchers focused on four types of cells: two prokaryotic and two eukaryotic. Despite being structurally different, they were found to ...

Brickner’s 20 years of research in the department of molecular biosciences at Northwestern’s Weinberg College of Arts & Sciences has mainly focused on yeast, an organism he says is “an excellent model ...