P. Kar

Are cell length and volume interchangeable in cell cycle analysis?

The paper investigates whether cell length and volume can be used interchangeably in cell cycle analysis and finds they can be, due to small cell width fluctuations.

Determining the rate-limiting processes for cell division in Escherichia coli

This study investigates the role of FtsN and FtsA in E. coli cell division and finds that FtsZ protofilaments, not FtsN, are rate-limiting for division onset.

PARP14 is a PARP with both ADP-ribosyl transferase and hydrolase activities

This study identifies PARP14 as a dual-function enzyme with ADP-ribosyl transferase and hydrolase activities, revealing its role in antiviral responses and substrate specificity.

Mycobacterium tuberculosis grows linearly at the single-cell level with larger variability than model organisms

This study uses time-lapse imaging and modeling to show that Mycobacterium tuberculosis grows linearly with high cell-to-cell variability, differing from exponential growth in model organisms.

To bin or not to bin: analyzing single-cell growth data

The paper analyzes single-cell growth data in E. coli, showing that growth is non-exponential and faster than exponential in later cell cycle stages.

Replication-related control over cell division in Escherichia coli is growth-rate dependent

This study shows that in Escherichia coli, replication and division are strongly correlated at slow growth rates but become independent at higher growth rates.

Nitric oxide sensing by chlorophyll a

The paper proposes using chlorophyll a to sense and classify different nitric oxide species with high sensitivity and temperature dependence.