Statistical Analysis of Scanning Fluorescence Correlation Spectroscopy Data Differentiates Free from Hindered Diffusion.

Schneider F, Waithe D, Lagerholm BC, Shrestha D, Sezgin E, Eggeling C, Fritzsche M

ACS Nano 12 (8) 8540-8546 [2018-08-28; online 2018-07-26]

Cells rely on versatile diffusion dynamics in their plasma membrane. Quantification of this often heterogeneous diffusion is essential to the understanding of cell regulation and function. Yet such measurements remain a major challenge in cell biology, usually due to low sampling throughput, a necessity for dedicated equipment, sophisticated fluorescent label strategies, and limited sensitivity. Here, we introduce a robust, broadly applicable statistical analysis pipeline for large scanning fluorescence correlation spectroscopy data sets, which uncovers the nanoscale heterogeneity of the plasma membrane in living cells by differentiating free from hindered diffusion modes of fluorescent lipid and protein analogues.

Erdinc Sezgin

SciLifeLab Fellow

PubMed 30028588

DOI 10.1021/acsnano.8b04080

Crossref 10.1021/acsnano.8b04080

pmc: PMC6117752

Publications 9.5.0