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. 2006 Apr;17(4):1971–1984. doi: 10.1091/mbc.E05-10-0956

Figure 4.

Figure 4.

Biochemical analysis reveals a severing defect for the aip1-15 mutation. Polymerized actin filaments (2.5 μM) were incubated with or without cofilin and GST-Aip1p (lane 3) or GST-aip1-15p (lane 4) for 10 min. The ratios of actin/cofilin and actin/Aip1p were 1:1 and 20:1, respectively. After high-speed centrifugation (360,000 × g), the extent of filament disassembly was determined based on the amount of actin that remained in the pellet fraction (F-actin) versus the supernatant fraction (G-actin), as detected by SDS-PAGE and SYPRO Ruby staining.