Recent studies have shown that under the axonal membrane, rings composed of actin filaments give the structure its flexibility. But those studies had not been able to define the precise architecture of these rings. By combining ...
Molecular & Computational biology
Dec 20, 2019
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5
Researchers have found that two specific proteins take apart actin filaments at one end and return the building blocks to the other end for a new round of polymerization. The structure of this machinery driving cell motility ...
Cell & Microbiology
Dec 17, 2019
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3
They play a leading role not only in muscle cells: Actin filaments are one of the most abundant proteins in all mammalian cells. The filigree structures form an important part of the cytoskeleton and locomotor system. Cell ...
Cell & Microbiology
Nov 22, 2019
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19
When a muscle is activated, it is the proteins myosin and actin that go to work. Myosin molecules take hold of actin molecules and pull, like rope pulling, in a process that gets energy from the use of the cellular fuel ATP. ...
Cell & Microbiology
Oct 21, 2019
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4
Microbiologists at LMU have shown that Toxoplasma gondii, the parasite that is responsible for toxoplasmosis, utilizes at least two modes of locomotion during its infection cycle.
Cell & Microbiology
Jul 2, 2019
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When faced with difficult terrain, off-road vehicles can switch from two- to four-wheel drive to keep moving forward. Similarly, cell migration can be driven either by protrusion-directed crawling, or by contractile pulling ...
General Physics
May 21, 2019
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5
The segregation of yolk from the surrounding cytoplasm in the very early fish embryo is a key process for the development of fish larva. To identify its underlying mechanisms, biologists at the Institute of Science and Technology ...
Cell & Microbiology
May 10, 2019
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5
Dysfunctions and malformations in the scaffold of a cell are thought to contribute to heart muscle weakness, neurodegenerative disease and even deafness. Now biophysics research at The University of Texas at San Antonio (UTSA) ...
Cell & Microbiology
May 8, 2019
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10
The recent discovery of a new lineage of microbes has overturned biologists' understanding of the evolution of complex life on Earth. Genomic studies of Asgard archaea revealed that they carry many genes previously thought ...
Evolution
Jan 15, 2019
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7
Investigators from the Neurodegenerative Diseases Research Group at the University of Extremadura are studying signaling mediated by a pathway known as planar cell polarity (PCP), which regulates the coordinated orientation ...
Cell & Microbiology
Dec 12, 2018
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