TitleMotor Function of the Two-Component EEA1-Rab5 Revealed by dcFCCS.
Publication TypeJournal Article
Year of Publication2025
AuthorsSoler JAntoni, Singh A, Zerial M, Thutupalli S
JournalMethods Mol Biol
Volume2881
Pagination87-115
Date Published2025
ISSN1940-6029
KeywordsHumans, rab5 GTP-Binding Proteins, Single Molecule Imaging, Spectrometry, Fluorescence, Vesicular Transport Proteins
Abstract

Fluorescence correlation spectroscopy (FCS) enables the measurement of fluctuations at fast timescales (typically few nanoseconds) and with high spatial resolution (tens of nanometers). This single-molecule measurement has been used to characterize single-molecule transport and flexibility of polymers and biomolecules such as DNA and RNA. Here, we apply this technique as dual-color fluorescence cross-correlation spectroscopy (dcFCCS) to identify the motor function of the tethering protein EEA1 and the small GTPase Rab5 by probing the flexibility changes through end-monomer fluctuations.

DOI10.1007/978-1-0716-4280-1_4
Alternate JournalMethods Mol Biol
PubMed ID39704939
PubMed Central ID26734