Polyphosphate is an extracellular signal that can facilitate bacterial survival in eukaryotic cells

R Rijal, LA Cadena, MR Smith… - Proceedings of the …, 2020 - National Acad Sciences
Polyphosphate is a linear chain of phosphate residues and is present in organisms ranging
from bacteria to humans. Pathogens such as Mycobacterium tuberculosis accumulate …

Biphasic chemotaxis of Escherichia coli to the microbiota metabolite indole

J Yang, R Chawla, KY Rhee, R Gupta… - Proceedings of the …, 2020 - National Acad Sciences
Bacterial chemotaxis to prominent microbiota metabolites such as indole is important in the
formation of microbial communities in the gastrointestinal (GI) tract. However, the basis of …

Asymmetric random walks reveal that the chemotaxis network modulates flagellar rotational bias in Helicobacter pylori

JD Antani, AX Sumali, TP Lele, PP Lele - Elife, 2021 - elifesciences.org
The canonical chemotaxis network modulates the bias for a particular direction of rotation in
the bacterial flagellar motor to help the cell migrate toward favorable chemical environments …

Novel insights into conformational rearrangements of the bacterial flagellar switch complex

T Sakai, T Miyata, N Terahara, K Mori, Y Inoue… - Mbio, 2019 - Am Soc Microbiol
The flagellar motor can spin in both counterclockwise (CCW) and clockwise (CW) directions.
The flagellar motor consists of a rotor and multiple stator units, which act as a proton …

The gearbox of the bacterial flagellar motor switch

A Pandini, F Morcos, S Khan - Structure, 2016 - cell.com
Switching of flagellar motor rotation sense dictates bacterial chemotaxis. Multi-subunit FliM-
FliG rotor rings couple signal protein binding in FliM with reversal of a distant FliG C-terminal …

Impact of fluorescent protein fusions on the bacterial flagellar motor

M Heo, AL Nord, D Chamousset, E van Rijn… - Scientific Reports, 2017 - nature.com
Fluorescent fusion proteins open a direct and unique window onto protein function.
However, they also introduce the risk of perturbation of the function of the native protein …

Indole modulates cooperative protein–protein interactions in the flagellar motor

R Gupta, KY Rhee, SD Beagle, R Chawla… - PNAS …, 2022 - academic.oup.com
Indole is a major component of the bacterial exometabolome, and the mechanisms for its
wide-ranging effects on bacterial physiology are biomedically significant, although they …

Switching and Torque Generation in Swarming E. coli

KM Ford, JD Antani, A Nagarajan… - Frontiers in …, 2018 - frontiersin.org
Escherichia coli swarm on semi-solid surfaces with the aid of flagella. It has been
hypothesized that swarmer cells overcome the increased viscous drag near surfaces by …

Bacterial flagellar motor switch in response to CheY-P regulation and motor structural alterations

Q Ma, Y Sowa, MAB Baker, F Bai - Biophysical Journal, 2016 - cell.com
The bacterial flagellar motor (BFM) is a molecular machine that rotates the helical filaments
and propels the bacteria swimming toward favorable conditions. In our previous works, we …

A mechanism of modulating the direction of flagellar rotation in bacteria by fumarate and fumarate reductase

A Koganitsky, D Tworowski, T Dadosh… - Journal of molecular …, 2019 - Elsevier
Fumarate, an electron acceptor in anaerobic respiration of Escherichia coli, has an
additional function of assisting the flagellar motor to shift from counterclockwise to clockwise …