Figure 1From: Rapid preparation of high-purity nuclear proteins from a small number of cultured cells for use in electrophoretic mobility shift assaysEfficient release of nuclei from cells using hypo-osmotic buffer and pipetting. Phase-contrast microscopic image of THP-1 cells in Lysis Buffer before (A) and after (B) pipetting through a 200-μl pipette tip. Original magnification: ×200. Arrowheads indicate membrane components around the nuclei that were observed before (A), but not after (B), pipetting.Back to article page