Tug-of-war in motor protein ensembles revealed with a programmable DNA origami scaffold

ND Derr, BS Goodman, R Jungmann… - …, 2012 - science.sciencemag.org
Cytoplasmic dynein and kinesin-1 are microtubule-based motors with opposite polarity that
transport a wide variety of cargo in eukaryotic cells. Many cellular cargos demonstrate
bidirectional movement due to the presence of ensembles of dynein and kinesin, but are …

Dynein achieves processive motion using both stochastic and coordinated stepping

W Qiu, ND Derr, BS Goodman, E Villa, D Wu… - Nature structural & …, 2012 - nature.com
Processivity, the ability of single molecules to move continuously along a track, is a
fundamental requirement of cargo-transporting molecular motors. Here, we investigate how
cytoplasmic dynein, a homodimeric, microtubule-based motor, achieves processive motion …

Imaging single molecules using total internal reflection fluorescence microscopy (TIRFM)

SL Reck-Peterson, ND Derr… - Cold Spring Harbor …, 2010 - cshprotocols.cshlp.org
Total internal reflection fluorescence microscopy (TIRFM) allows fluorescent molecules to be
visualized with an unparalleled signal-to-noise ratio. This is achieved by illuminating only
the molecules that are within a thin volume near the coverslip surface but not those that are …

Engineered, harnessed, and hijacked: synthetic uses for cytoskeletal systems

BS Goodman, ND Derr, SL Reck-Peterson - Trends in cell biology, 2012 - Elsevier
Synthetic biology re-imagines existing biological systems by designing and constructing
new biological parts, devices, and systems. In the arena of cytoskeleton-based transport,
synthetic approaches are currently used in two broad ways. First, molecular motors are …

A DNA origami platform for quantifying protein copy number in super-resolution

FC Zanacchi, C Manzo, AS Alvarez, ND Derr… - Nature …, 2017 - nature.com
Single-molecule-based super-resolution microscopy offers researchers a unique opportunity
to quantify protein copy number with nanoscale resolution. However, while fluorescent
proteins have been characterized for quantitative imaging using calibration standards …

Cargo rigidity affects the sensitivity of dynein ensembles to individual motor pausing

…, KWL Chau, JM Morgan, ND Derr - …, 2016 - Wiley Online Library
Cytoplasmic dynein is a minus‐end directed microtubule‐based motor protein that drives
intracellular cargo transport in eukaryotic cells. Although many intracellular cargos are
propelled by small groups of dynein motors, the biophysical mechanisms governing …

Exploiting molecular motors as nanomachines: the mechanisms of de novo and re-engineered cytoskeletal motors

NV DelRosso, ND Derr - Current opinion in biotechnology, 2017 - Elsevier
Cytoskeletal molecular motors provide exciting proof that nanoscale transporters can be
highly efficient, moving for microns along filamentous tracks by hydrolyzing ATP to fuel
nanometer-size steps. For nanotechnology, such conversion of chemical energy into …

Imaging single molecular motor motility with total internal reflection fluorescence microscopy (TIRFM)

SL Reck-Peterson, ND Derr… - Cold Spring Harbor …, 2010 - cshprotocols.cshlp.org
Total internal reflection fluorescence microscopy (TIRFM) allows fluorescent molecules on or
near the plasma membrane to be visualized with a very high signal-to-noise ratio. This strategy
has been very successful for imaging molecular machines as they move and do work. We provide …

[HTML][HTML] Out-of-body experiences associated with seizures

B Greyson, NBMD Fountain, LLM Derr… - Frontiers in human …, 2014 - frontiersin.org
Alterations of consciousness are critical factors in the diagnosis of epileptic seizures. With
these alterations in consciousness, some persons report sensations of separating from the
physical body, experiences that may in rare cases resemble spontaneous out-of-body …

A molecular circuit regenerator to implement iterative strand displacement operations

…, S Hews, L Spector, ND Derr - Angewandte Chemie …, 2017 - Wiley Online Library
The predictable chemistry of Watson–Crick base‐pairing imparts a unique structural
programmability to DNA, enabling the facile design of molecular reactions that perform
computations. However, many of the current architectures limit devices to a single …