User profiles for N. Ojkic

Nikola Ojkic

Queen Mary University of London
Verified email at qmul.ac.uk
Cited by 607

Cellular resource allocation strategies for cell size and shape control in bacteria

D Serbanescu, N Ojkic, S Banerjee - The FEBS journal, 2022 - Wiley Online Library
… The upper bound on the growth rate maximization occurs when the translation efficiency κ
t and the nutritional efficiency κ n are both maximum for a given nutrient environment. Figure …

Phase separation in the outer membrane of Escherichia coli

…, PG Inns, JC Forster, N Ojkic… - Proceedings of the …, 2021 - National Acad Sciences
… in 200 μL fresh M9 glucose supplemented with 200 nM colicin N 1-185 PAmCherry [expressed
and purified in the same manner as colicin N 1-185 mCherry (29)], and labeling of OmpF …

α-Actinin and fimbrin cooperate with myosin II to organize actomyosin bundles during contractile-ring assembly

D Laporte, N Ojkic, D Vavylonis… - Molecular biology of the …, 2012 - Am Soc Cell Biol
The actomyosin contractile ring assembles through the condensation of a broad band of
nodes that forms at the cell equator in fission yeast cytokinesis. The condensation process …

Surface-to-volume scaling and aspect ratio preservation in rod-shaped bacteria

N Ojkic, D Serbanescu, S Banerjee - Elife, 2019 - elifesciences.org
10.7554/eLife.47033.001 Rod-shaped bacterial cells can readily adapt their lengths and
widths in response to environmental changes. While many recent studies have focused on the …

Antibiotic resistance via bacterial cell shape-shifting

N Ojkic, D Serbanescu, S Banerjee - Mbio, 2022 - Am Soc Microbiol
Bacteria have evolved to develop multiple strategies for antibiotic resistance by effectively
reducing intracellular antibiotic concentrations or antibiotic binding affinities, but the role of cell …

Mechanical feedback promotes bacterial adaptation to antibiotics

S Banerjee, K Lo, N Ojkic, R Stephens, NF Scherer… - Nature Physics, 2021 - nature.com
… We simulate the stochastic growth and shape dynamics of a total of n = 40 cells, for g =
100 generations each (Figs. 3,4). We initialize the shape of cell j (1 ≤ j ≤ n) by prescribing its …

[PDF][PDF] Nutrient-dependent trade-offs between ribosomes and division protein synthesis control bacterial cell size and growth

D Serbanescu, N Ojkic, S Banerjee - Cell reports, 2020 - cell.com
… maximum growth rate characteristic of the medium, and n à is the value of ―n when
kspecific/k0 = 0.5. When the nutrients inside the cell reach saturation, ie, d―n /dt = 0, we have k = …

A roadblock-and-kill mechanism of action model for the DNA-targeting antibiotic ciprofloxacin

N Ojkic, E Lilja, S Direito, A Dawson… - Antimicrobial agents …, 2020 - Am Soc Microbiol
… Assuming that n increases proportionally to the CIP concentration (c), we would then
expect a concave relationship between the net growth rate (birth minus death) and c, with a …

Cell-wall remodeling drives engulfment during Bacillus subtilis sporulation

N Ojkic, J López-Garrido, K Pogliano, RG Endres - Elife, 2016 - elifesciences.org
10.7554/eLife.18657.001 When starved, the Gram-positive bacterium Bacillus subtilis forms
durable spores for survival. Sporulation initiates with an asymmetric cell division, creating a …

[PDF][PDF] Chromosome translocation inflates Bacillus forespores and impacts cellular morphology

J Lopez-Garrido, N Ojkic, K Khanna, FR Wagner… - Cell, 2018 - cell.com
The means by which the physicochemical properties of different cellular components
together determine bacterial cell shape remain poorly understood. Here, we investigate a …