Results 31 to 40 of about 116,936 (212)

High‐Resolution Patterned Delivery of Chemical Signals From 3D‐Printed Picoliter Droplet Networks

Advanced Materials, EarlyView.
3D‐printed picoliter droplet networks have been fabricated that control gene expression in bacterial populations by releasing chemical signals with precise spatial definition and high temporal resolution. This system of effector release is widely applicable, offering diverse applications in biology and medicine.
Jorin Riexinger, Thomas Caganek, Xingzao Wang, Yutong Yin, Khoa Chung, Linna Zhou, Hagan Bayley, Ravinash Krishna Kumar   +7 more
wiley   +1 more source

Gene expression noise in a complex artificial toxin expression system.

PLoS ONE, 2020
Gene expression is an intrinsically stochastic process. Fluctuations in transcription and translation lead to cell-to-cell variations in mRNA and protein levels affecting cellular function and cell fate. Here, using fluorescence time-lapse microscopy, we
Alexandra Goetz, Andreas Mader, Benedikt von Bronk, Anna S Weiss, Madeleine Opitz   +4 more
doaj   +1 more source

Regulation of potassium dependent ATPase (kdp) operon of Deinococcus radiodurans. [PDF]

PLoS ONE, 2017
The genome of D. radiodurans harbors genes for structural and regulatory proteins of Kdp ATPase, in an operon pattern, on Mega plasmid 1. Organization of its two-component regulatory genes is unique.
Pratiksha Dani, Aman Kumar Ujaoney, Shree Kumar Apte, Bhakti Basu   +3 more
doaj   +1 more source

Engineering Magnetotactic Bacteria as Medical Microrobots

Advanced Materials, EarlyView.
Magnetotactic bacteria (MTB) are living microorganisms that produce magnetosomes for navigation using the Earth's geomagnetic field. Their built‐in magnetic components, along with their intrinsic and/or modified biological functions, make them one of the most promising platforms for making future living and programmable microrobots.
Jiaqi Wang, Yi Xing, Michael Ngatio, Paulina Bies, Lu Lucy Xu, Liuxi Xing, Ahmed Zarea, Ashley V. Makela, Christopher H. Contag, Jinxing Li   +9 more
wiley   +1 more source

Non‐Respiratory Extracellular Electron Transfer Competes with Nitrogenase for Electrons in Rhodopseudomonas Palustris

Advanced Science, EarlyView.
This study develops a photosynthetic bioelectrochemical nitrogen fixation system for simultaneous nitrogen fixation and current generation using Rhodopseudomonas palustris. Notably, extracellular electron transfer (EET) serves as a redox balancing strategy, suppressing nitrogen fixation by competing with nitrogenase for electrons.
Xuewen Liu, Panqing Qi, Weipeng Fan, Wuyang Liu, Xingjiang Li, Yong Nie, Xiao‐Lei Wu   +6 more
wiley   +1 more source

N-acetylgalatosamine-mediated regulation of the aga operon by AgaR in Streptococcus pneumoniae

Frontiers in Cellular and Infection Microbiology, 2016
Here, we analyze the transcriptomic response of Streptococcus pneumoniae D39 to N-acetylgalactosamine (NAGa). Transcriptome comparison of S. pneumoniae D39 grown NAGaM17 (0.5% NAGa + M17) to that grown in GM17 (0.5% Glucose + M17) revealed the elevated ...
Muhammad Afzal, Muhammad Afzal, Sulman Shafeeq, Hifza Ahmed, Oscar P. Kuipers   +4 more
doaj   +1 more source

The life-cycle of operons. [PDF]

PLoS Genetics, 2006
Operons are a major feature of all prokaryotic genomes, but how and why operon structures vary is not well understood. To elucidate the life-cycle of operons, we compared gene order between Escherichia coli K12 and its relatives and identified the ...
Morgan N Price, Adam P Arkin, Eric J Alm
doaj   +1 more source

Identification and Molecular Characterization of the Operon Required for L-Asparagine Utilization in Corynebacterium glutamicum

Microorganisms, 2022
Understanding the metabolic pathways of amino acids and their regulation is important for the rational metabolic engineering of amino acid production.
Koichi Toyoda, Riki Sugaya, Akihiro Domon, Masako Suda, Kazumi Hiraga, Masayuki Inui   +5 more
doaj   +1 more source

Microbial Biosensor for Sensing and Treatment of Intestinal Inflammation

Advanced Science, EarlyView.
The engineered calprotectin biosensor detects gut inflammation, processes the signal through genetic regulation, and responds by expressing the reporter sfGFP and the therapeutic protein secIL10. This dual functionality enables the engineered biosensor not only to sense but also to mitigate gut inflammation, highlighting its potential for disease ...
Duolong Zhu, Jeffrey Galley, Jason Pizzini, Elena Musteata, Martin V. Douglas, Walter J. Chazin, Eric P. Skaar, Jeffrey J. Tabor, Robert A. Britton   +8 more
wiley   +1 more source

Using origami and Shrinky Dinks to create active learning activities to tackle two microbiology concepts: cell structure differences and operon regulation

Journal of Microbiology & Biology Education
This paper presents two low-cost hands-on activities designed to enhance student understanding and address the pedagogical challenges faced by microbiology professors in teaching concepts related to cell structure and gene regulation.
Manuela Tripepi, Hannah M. Schapiro
doaj   +1 more source