Specimen-specific drift of densities defines distinct subclasses of extracellular vesicles from human whole saliva
Fig 2
Specimen-specific density drift.
(A) Western blotting for CD63 from specimen 1 (S.1), Specimen 2 (S.2) and Specimen 3 (S.3) both in the downward (D) and upward (U) centrifugation. A position of 48 KDa molecular weight marker is indicated at the right side of S.1 D panel, and the fraction numbers are indicated on the top. (B) The densities of 60 fractions from three specimens (Specimen 1 in blue, 2 in green and 3 in red) both in downward (circles) and in upward (squares) centrifugation are plotted, including those fractions with the strongest signals of CD63 (filled circles and squares).