Results 41 to 50 of about 20,664 (176)

Specifically bound lambda repressor dimers promote adjacent non-specific binding. [PDF]

PLoS ONE, 2018
Genetic switches frequently include DNA loops secured by proteins. Recent studies of the lambda bacteriophage repressor (CI), showed that this arrangement in which the protein links two sets of three operators separated by approximately 2.3 kbp ...
Suparna Sarkar-Banerjee, Sachin Goyal, Ning Gao, John Mack, Benito Thompson, David Dunlap, Krishnananda Chattopadhyay, Laura Finzi   +7 more
doaj   +1 more source

CREAT: A CRISPR‐Based Genome Trimming Strategy for Systematic Identification of Dispensable Regions and Rapid Genome Reduction

Advanced Science, EarlyView.
Current genome‐reduction methods work in a trial‐and‐error fashion, constituting a long‐standing bottleneck in the research. We developed CREAT (CRISPR‐based genome trimming with a multi‐homology‐arm template), a CRISPR‐based genetic approach that enables systematically classifying essential versus non‐essential genomic regions and subsequently ...
Guanhua Yuan, Zhe Gao, Yingxuan Qi, Yang Zhang, Xuhui Tian, Pengpeng Zhao, Xu Feng, Qunxin She   +7 more
wiley   +1 more source

On the Internal Structure of Bacteriophage Lambda [PDF]

The Journal of General Physiology, 1966
The structure of bacteriophage lambda has been studied by electron microscopy of negatively stained particles. The phage particles will eject their DNA if they are heated or dialyzed against a chelating agent. The ghost particles, so formed, have a channel running down their tails.
openaire   +2 more sources

Mesoporous Catalytic‐Adsorptive Nanoregulator Orchestrates Biofilm eDNA/LPS Disassembly and TLR9/TLR4 Immune Reprogramming to Resolve Diabetic Foot Infections

Advanced Science, EarlyView.
Chronic diabetic wounds are hindered by a “dual trap” of biofilm resistance and hyperinflammation. A mesoporous catalytic‐adsorptive nano‐regulator is developed to dismantle this barrier through simultaneous eDNA degradation and LPS sequestration. By silencing TLR4/9‐mediated signaling, the platform clears resilient pathogens and reprograms the immune ...
Junfeng Song, Yang Song, Xirui Huang, Xingjin Li, Lifei Gao, Yixiang Wang, Tianbao Zhu, Xiaomin Li, Shuai Wang, Tiancong Zhao, Dongyuan Zhao   +10 more
wiley   +1 more source

Construction of the Recombinant Plasmid Expressing AID under the Control of Temperature-sensitive Promoter of Bacteriophage Lambda

Journal of Mazandaran University of Medical Sciences, 2019
Background and purpose: Activation-induced cytidine deaminase (AID) is a B-cell specific enzyme responsible for somatic hypermutation (SHM) and class switch recombination (CSR) of antibody genes within the B-cell follicle of peripheral lymphoid organs ...
Nasim Hafezi, Abolghasem Ajami, Reza Valadan   +2 more
doaj  

Reimagining Lignin Valorization: Synthetic Biology–Enabled Sustainable Aromatic Carbon Biomanufacturing

Advanced Science, EarlyView.
The diagram illustrates a sustainable model of lignin valorization and carbon cycling based on microbial cell factories. Using lignin as the feedstock, synthetic biology technologies, including depolymerization, cell factory construction, pathway gene module integration, and metabolic network regulation, are applied to convert lignin into bulk ...
Na Li, Jun‐Jie Zhangyang, Bing‐Zhi Li, Zhi‐Hua Liu, Ying‐Jin Yuan   +4 more
wiley   +1 more source

Phage lambda CIII: a protease inhibitor regulating the lysis-lysogeny decision. [PDF]

PLoS ONE, 2007
The ATP-dependent protease FtsH (HflB) complexed with HflKC participates in post-translational control of the lysis-lysogeny decision of bacteriophage lambda by rapid degradation of lambda CII. Both phage-encoded proteins, the CII transcription activator
Oren Kobiler, Assaf Rokney, Amos B Oppenheim   +2 more
doaj   +1 more source

F‐Type Pyocin Versus Phage λ Tail: Conserved Hub, Divergent Fibers

Advanced Science, EarlyView.
Near‐atomic cryo‐EM structures of a Gram‐negative F‐type pyocin reveal a conserved tail tip architecture shared with bacteriophage λ together with a previously unrecognized side‐fiber attachment mode. These findings provide new insight into tailocin assembly and host recognition and establish a structural framework for engineering precision ...
Zhiwei Gu, Yufan Xie, Lanxin Wang, Luyan Ma, Xiaofei Ge, Jiawei Wang   +5 more
wiley   +1 more source

Scalable Separation and Purification of M13‐Bacteriophage‐Derived Particles Containing Artificial Single‐Stranded DNA Produced by Escherichia coli

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Single‐stranded DNA (ssDNA) solutions are promising innovations shaping the future of genetic research and medical therapies. In principle, biotechnological mass production of ssDNA can be achieved using Escherichia coli in a high‐cell density fed‐batch process by secreting phagemid particles derived from the filamentous M13 bacteriophages ...
Nathalie Hafner, Wiebke Winkler, Maximilian N. Honemann, Hendrik Dietz, Dirk Weuster‐Botz   +4 more
wiley   +1 more source

Commensal E. coli Stx2 lysogens produce high levels of phages after spontaneous prophage induction

Frontiers in Cellular and Infection Microbiology, 2015
Enterohemorrhagic E. coli (EHEC) is a food-borne pathogen that causes disease ranging from uncomplicated diarrhea to life-threatening hemolytic uremic syndrome (HUS) and nervous system complications.
Hildegunn eIversen, Trine Marie L'Abée-Lund, Marina eAspholm, Lotte Stenfors Arnesen, Toril eLindbäck   +4 more
doaj   +1 more source