Myosin scale drawing

Figure 19-10 (A) An approximate scale drawing of the myosin molecule. The "hinge" is a region that is rapidly attacked by trypsin to yield the light and heavy meromyosins (LMM and HMM). Total length -160 nm, molecular mass, 470 kDa two -200-kDa heavy chains two pairs of 16- to 21-kDa light chains heads -15 x 4 x 3 nm. (B) Electron micrograph of rabbit myosin monomers that became dissociated from thick filaments in the presence of ATP, fixed and shadowed with platinum.127 Courtesy of Tsuyoshi Katoh.

The drawing is not to scale any given cell would have many more myosin molecules on its surface. 

Fig. 9A, B A Optically-sectioned SHG image series showing the alternation of signal intensity as the angle between the myosin/actin filaments and fundamental polarization (shown in arrow) varies. B Schematic drawing showing the relative directions of the assigned parameter. Scale bar. 20 pm...

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