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Figure 10
(a) Oscillatory length changes of the muscle fibres and intensity changes of the 14.5 nm myosin-based meridional reflection in one cycle. The small fibre bundle was oscillated at the frequency of 0.5 kHz and with a peak-to-peak amplitude of 0.6% of the fibre length. Top: an oscillatory length change. Middle: a change of the 14.5 nm intensity in the active state. Bottom: a change of the 14.5 nm intensity in rigor for comparison. (b) A straightforward model explaining the intensity changes as the motion of the myosin heads during the oscillatory length changes. Each figure in the right-hand side represents schematically the mass density of the myosin heads projected onto the fibre axis.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 6| Part 4| July 1999| Pages 875-890
doi:10.1107/S0909049599007025
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