a | Stochastic optical reconstruction microscopy (STORM)
image of histone H2B in human fibroblast cells with progressively higher zoomed
insets. b | Top: direct STORM (dSTORM) image of nuclear pore
complexes (NPCs) labelled with antibodies to the nucleoporin Nup133. Three
individual NPCs are shown on the right and an average image of 4,171 aligned
NPCs on the lower right. Bottom left: coloured circles show radial positions of
different nucleoporins in the plane of the nuclear envelope, determined from
averaged dSTORM images, with the inferred position of the Y-shaped scaffold
complex overlaid. Circle thickness reflects 95% confidence intervals of average
radial distances. Bottom centre and bottom right: side and frontal views of the
electron microscopy structure (grey), with the radial positions of nucleoporins
shown in colour, and two positions of the Y complex consistent with the dSTORM
data overlaid. c | Interferometric photoactivated localization
microscopy (iPALM) image of a human U2OS cell expressing integrin
αν-tdEos (left) and actin-mEos2 (right) with
colour-coded zoomed insets of boxed regions. Colours represent the
z position relative to the substrate (z = 0 nm).
d | 3D STORM image of actin in a neuronal axon with zoomed
y/z insets of boxed regions showing actin
rings. Part a adapted with permission from REF.136, Elsevier. Part
b reprinted with permission from REF.120, AAAS. Part c adapted from
REF.168, Springer
Nature Limited. Part d reprinted with permission from
REF.58, AAAS.