The cytoplasm of eukaryotic cells contains an elaborate filamentous protein meshwork — the cytoskeleton — which comprises three distinct but integrated fibrous polymers: filamentous actin (F-actin; ...

Actin filaments (F-actin) are key components of sarcomeres, the basic contractile units of skeletal muscle myofibrils. A crucial step during myofibril differentiation is the sequential exchange of ...

Cells grow, divide, change their shape and move. They provide structure for the body and tissues, enter wounds to close them or chase down bacteria in our blood. The mobility of cells is a ...

Robert Mauck, PhD, from the University of Pennsylvania, discussed how aging and differentiation alter nuclear mechanobiology at the 2014 American Society of Bone and Mineral Research Conference in ...

Researchers have discovered that septins -- a part of the cytoskeleton -- form a barrier to the penetration of Pseudomonas aeruginosa. The process is dependent on the LecA molecule on the surface of ...

Researchers discover that actin acts in the cell nucleus and is partly responsible for the expression of male sexual characteristics. Steroid hormones, to which belong sex hormones like estrogen or ...

Prior to using this narrative, have learners create their own model of a cell in their notebooks using whatever background information or experience they might have. While exploring the narrative, ...