Models of Muscle Z-band Fine Structure Based on a Looping Filament Configuration

  title={Models of Muscle Z-band Fine Structure Based on a Looping Filament Configuration},
  author={Douglas E. Kelly},
  journal={The Journal of Cell Biology},
  pages={827 - 840}
The fine architecture of skeletal muscle Z bands is considered in view of stereo electron microscopical evidence and current biochemical and immunological concepts, and a new Z-band model is proposed. This model is based on a looping, interlinking configuration, within the Z band, of strands which emanate from I-band (actin) filaments of adjacent sarcomeres. Two versions of the model seem presently feasible: one in which the Z-band lattice is composed of actin loops; and another in which the… CONTINUE READING

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