A treasure trove of motors

Article Abstract:

Richards and Cavalier-Smith have performed a comprehensive analysis of the myosin superfamily of motor proteins across a wide sample of eukaryotes, giving insights into how myosins evolved and into the nature of the earliest common ancestor, the cenancestor of eukaryotic cells. The myosins are a diverse group of motor proteins, which move along the actin filaments that form a major component of the cell's internal scaffolding.

United States, Protein research

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Myosin trapped but not tamed

Article Abstract:

Biochemical research using fluorescence excitation indicates that myosin stores energy from adenosine triphosphate hydrolysis. The myosin molecule's interaction with energy is a difficult reaction to analyse in muscle contraction research. Various experimental techniques have failed to illustrate the hydrolytic reaction.

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Visualization of an unstable coiled coil from the scallop myosin rod

Article Abstract:

Myosin II is the key protein in muscle contraction and the molecule's two-chain alpha-helical coiled-coil rod region. The physical basis of a particularly weak coiled-coil segment is described.

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