Bustamante is a founding figure of single-molecule biophysics, using optical and magnetic tweezers to measure the forces and torques generated by molecular motors (RNA polymerase, viral packaging motors, the ribosome) as they act on individual nucleoprotein complexes. The lab continues to push single-molecule force spectroscopy toward sub-piconewton, millisecond resolution to resolve mechanochemical intermediates invisible to bulk assays.
Gruszka's Chromatin Dynamics Lab combines real-time single-molecule imaging with biochemistry and biophysics (including in Xenopus egg-extract systems) to study how epigenetic information carried by nucleosomes is disassembled and re-established during DNA replication. The lab is actively recruiting postdoctoral fellows.
Marko's lab applies statistical mechanics and single-molecule micromanipulation -- principally magnetic tweezers -- to chromosome structure and DNA-protein interactions, studying how condensin, topoisomerases, and other nucleoid-associated proteins organize and mechanically stabilize chromatin and mitotic chromosomes in vivo and in vitro. The group combines force spectroscopy with fluorescence microscopy to resolve single-DNA and single-chromosome mechanics at the piconewton scale.
Rueda leads a single-molecule imaging group (jointly at Imperial and the MRC London Institute of Medical Sciences) that combines single-molecule FRET, fluorogenic RNA aptamer imaging and optical tweezers to reveal the structural dynamics of RNA folding/splicing, CRISPR-Cas9 target search and off-target activity, and chromatin-remodelling complexes; the aptamer-imaging technology has been spun out as the startup Irida.
Willem Vanderlinden uses high-resolution biophysical tools to study protein-nucleic acid interactions. Research: (1) magnetic tweezers for pN-scale force and torque measurements on single DNA molecules and nucleoprotein complexes during retroviral integration, DNA supercoiling, and chromatin remodelling; (2) high-speed AFM imaging of nucleoprotein complexes and chromosomal organisation; (3) quantitative single-molecule statistical analysis of DNA topology. His approach provides cutting-edge spatial resolution to study chromatin biophysics and mobile DNA elements at the single-molecule level.