Actin is the main constituent of one of the two types of fibres that together operate the sliding filament mechanism of muscular contraction. The form of the actin helix has been examined, first by ...

An international team of scientists from the University of Florence, Italy and the Randall Division in collaboration with the ESRF, the European Synchrotron, Grenoble, France, demonstrated a new ...

Muscle-specific protein cofilin-2 controls the length of actin filaments in muscle cells. Researchers have now revealed a new mechanism that is essential for the correct organization of related ...

This is a preview. Log in through your library . Abstract Electron microscopy of directly frozen giant cells of characean algae shows a continuous, tridimensional network of anastomosing tubes and ...

The behaviour of cilia and flagella is of considerable interest because of the conversion by these organelles of chemical energy into the mechanical energy necessary for movement. In this article ...

Steven Vogel tells us that his professional biases, as a biologist, “start with the belief that we just can't understand history, literature, economics, art, and so forth without taking biology into ...