The results discussed in the preceding paper indicate that A-band shortening in Limulus muscle is a thick filament response to activation that occurs largely by fragmentation of filament ends. To ...

Striated muscle contraction requires intricate interactions of microstructures. The classic textbook assumption that myosin filaments are compressed at the meshed Z-disc during striated muscle fibre ...

After five years of work, a team from National Biosciences Laboratory (LNBio), in the city of Campinas, has defined the three-dimensional structure of what is called the functional, or active, region ...