Fig 6.

Electron microscopic analysis of the Rep68 protein oligomers. (A) Visualization of cross-linked Rep68* particles by electron microscopy at ×50,000 magnification using the negative-stain technique. Image processing of the particles shows the presence of heptameric (B) and octameric (C) rings. Addition of ATP gives a similar mixture of heptamers and octamers (data not show) but also induces the formation of large filament-like structures (D). (E) Dimension details for these structures after the image processing.