Scientists uncover the nuclear life of actin
A key building block of life, actin is one of the most abundant and highly conserved proteins in eukaryotic cells.
Mar 24, 2013
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Mar 24, 2013
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Research explores road signs on the intracellular highway
The interior of every cell within our bodies is crisscrossed with a network of molecular highways upon which nutrients, replacement parts, and other vital materials travel to their appropriate location. The ...
Mar 19, 2013
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Biological connections in microelectronics
Miniaturization of electronic components is reaching a physical limit. While the solution of three dimensional assembly has the advantage of reducing bulk, the manufacture of electrical connections in these new products remains ...
Feb 12, 2013
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Axons' unexpected cytoskeleton structure
(Phys.org)—The plasma membranes that give cells their shapes are typically upheld by linear meshworks of the protein actin. In contrast, Howard Hughes Medical Institute scientists have now discovered that ...
Jan 28, 2013
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A diffusion trap: Sticky spots on cell membranes hold onto the master regulator of cell polarity
Over the past several years, Rong Li, Ph.D., at the Stowers Institute for Medical Research has been making crucial discoveries about the development of cell polarity—the process by which one side of a cell ...
Jan 22, 2013
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New insights into cell division: Researchers develop minimal system
All living organisms consist of cells that have arisen from other living cells by the process of cell division. However, it is not yet fully understood just how this important process takes place.
Jan 14, 2013
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The determining factors of cell shape examined
A European team is investigating the role of the bacterial cell wall and the cytoskeleton in mediating cell shape. Results are expected to have broader implications for cell biology.
Oct 04, 2012
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Self-forming biological scaffolding: Model system that can interpret the role of cross-linking proteins
(Phys.org)—A new model system of the cellular skeletons of living cells is akin to a mini-laboratory designed to explore how the cells' functional structures assemble. A paper about to be published in European Ph ...
Sep 19, 2012
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Locating muscle proteins: Scientists bring the basis of muscle movement into sharper focus
Muscle contraction and many other movement processes are controlled by the interplay between myosin and actin filaments. Two further proteins, tropomyosin and troponin, regulate how myosin binds to actin. ...
Jul 19, 2012
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Biophysicists model the behavior of a protein critical to cell motion
(Phys.org) -- Physicists at Lehigh have created a mathematical model that could benefit researchers who study cell motion, including cancerous cell motion, tissue healing processes and human embryonic development.
Jul 16, 2012
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Scientists reveal mechanism for cellular remodeling
(Phys.org) -- Actin filaments are one of the primary elements responsible for organizing cell architecture and helping them to move from one place to the next. They can be found in the smallest yeast cell and in your muscles, ...
Jul 06, 2012
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Actin-ratchet tightens contractile ring that severs budding daughter cells from their yeast mothers
During the final stage of cell division, a short-lived contractile ring constricts the cellular membrane and eventually separates the dividing cell in two. Although this "molecular muscle's" composition, mainly ...
Jun 11, 2012
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Cells on the move
Cells on the move reach forward with lamellipodia and filopodia, cytoplasmic sheets and rods supported by branched networks or tight bundles of actin filaments. Cells without functional lamellipodia are still ...
Apr 09, 2012
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Proteins found to spontaneously form whorls and lattices
(PhysOrg.com) -- Building on the work of a previous team that found filaments made from actin, when combined with so called motor proteins, moved themselves into distinct patterns, a new team in Japan has ...
Mar 28, 2012
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Video captures cellular 'workhorses' in action
Scientists at Yale University and in Grenoble France have succeeded in creating a movie showing the breakup of actin filaments, the thread-like structures inside cells that are crucial to their movement, maintenance and division.
Apr 28, 2011
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