Equilibrium Sedimentation of Uniform Rods of Tobacco Mosaic Virus

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Science  07 Jun 1963:
Vol. 140, Issue 3571, pp. 1090-1092
DOI: 10.1126/science.140.3571.1090


Equilibrium was achieved in centrifugal fields with tobacco mosaic virus by the Beams magnetically suspended ultracentrifuge. An attempt was made to account for the earth's gravitational component by using tilted cells in the rotor. The determinations of particle weight on highly uniform rods of tobacco mosaic virus in the apparent absence of nonideal behavior gave a value of (41.6 ± 0.1) 106.