Fig. 2.

Thermally induced transition of 1D RIDC3 nanotubes into 2D arrays. RIDC3 nanotubes were assembled by the addition of 100 equivalents of Zn²⁺ in 5 mM bis-TRIS (pH 5.5). Protein arrays were exchanged into MES buffer (pH 5.5) by centrifugation and resuspension, after which the solution was heated to 80 °C. TEM grids were periodically prepared and imaged over the course of 5 h (A–C).