55 research outputs found
SHAPE OF THE CHROMOPHOIW BINDING SITE IN pharaonis PHOBORHODOPSIN FROM A STUDY USING RETINAL ANALOGS
Effect of lysine methylation and other ATPase modulators on the active site of myosin subfragment 1.
Cross-helix separation of tropomyosin molecules in acto-tropomyosin as determined by neutron scattering.
The cross-helix separation of Tm molecules in acto-tropomyosin has been determined using neutron scattering. Deuterated Dictyostelium discoideum actin was density matched in a 93% D2O buffer so that effectively only the protonated tropomyosin was "visible" to neutrons. Analysis of the solution scattering pattern in the region of the first oscillation yielded a value for the cross-helix separation of 7.9 +/- 0.3 nm. The implications of this value for the mechanism of the regulation of muscle contraction are discussed in light of recent results by others
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