Results 41 to 50 of about 4,885 (120)

Interaction of Escherichia coli RecA protein with LexA repressor. I. LexA repressor cleavage is competitive with binding of a secondary DNA molecule.

The Journal of biological chemistry, 1996
Essential to the two distinct cellular events of genetic recombination and SOS induction in Escherichia coli, RecA protein promotes the homologous pairing and exchange of DNA strands and the proteolytic cleavage of the LexA repressor, respectively.
W M, Rehrauer, P E, Lavery, E L, Palmer, R N, Singh, S C, Kowalczykowski   +4 more
openaire   +1 more source

The Transcription Factors NFYA1 and GBF3 Jointly Regulate CHS2 to Promote Tangeretin Accumulation and Cold Tolerance in Citrus

Plant Biotechnology Journal, Volume 24, Issue 2, Page 582-601, February 2026.
ABSTRACT Tangeretin has been known as a polymethoxylated flavone conferring both phytoprotection and nutraceutical value, but cryoprotective roles and molecular regulation of tangeretin under abiotic stresses remain largely unexplored. In this study, we demonstrated that cold treatment led to greater accumulation of tangeretin and upregulation of ...
Peng Xiao, Jing Qu, Yike Zeng, Wei Xiao, Tian Fang, Yilei Wang, Xi Zeng, Chunlong Li, Ji‐Hong Liu   +8 more
wiley   +1 more source

TCP3‐mediated regulation of cell expansion in Arabidopsis thaliana

New Phytologist, Volume 248, Issue 6, Page 2981-2995, December 2025.
Summary Cell expansion is crucial for organ morphogenesis in multicellular organisms. Apoplast acidification triggers plant cell expansion. Plant hormones and transcription factors such as TEOSINTE BRANCHED, CYCLOIDEA, and PROLIFERATING CELL NUCLEAR ANTIGEN BINDING FACTORs (TCPs) control cell expansion.
Tomotsugu Koyama, Tadashi Kunieda, Hiromi Toyonaga, Mika Nobuhara, Nobutaka Mitsuda, Kouichi Soga, Junko Ishida, Motoaki Seki, Koji Takahashi, Toshinori Kinoshita, Ayumu Bessho, Taku Demura, Masaru Ohme‐Takagi   +12 more
wiley   +1 more source

Antibiotic Resistance: A Genetic and Physiological Perspective

MedComm, Volume 6, Issue 11, November 2025.
The development of resistance to antimicrobials and their historical progression are depicted in this graphic. It draws attention to important biochemical, physiological, and genetic factors that contribute to AMR, such as the transmission of genes, the development of biofilms, and the inactivation of antibiotics.
Rania G. Elbaiomy, Ahmed H. El‐Sappah, Rong Guo, Xiaoling Luo, Shiyuan Deng, Meifang Du, Xiaohong Jian, Mohammed Bakeer, Zaixin Li, Zhi Zhang   +9 more
wiley   +1 more source

Antibiotic Persister Cells in Acinetobacter baumannii: Overview of Molecular Mechanisms and Removal Strategies

Environmental Microbiology, Volume 27, Issue 11, November 2025.
Antibiotic persister cells in Acinetobacter baumannii: review of the molecular mechanisms involved in this physiology, such as toxin/antitoxin, second messengers, SOS response, PAA or membranes; and elimination strategies such as antibiotics or phages.
Delphine Vergoz, Emmanuelle Dé, Corinne Loutelier‐Bourhis, Stéphane Alexandre   +3 more
wiley   +1 more source

Populus PtrbHLH011 Is a Transcriptional Co‐Regulator Involved in the Activation of Cell Wall Biosynthesis by Iron Deprivation

Plant Biotechnology Journal, Volume 23, Issue 11, Page 4893-4909, November 2025.
ABSTRACT The lack of a mechanistic understanding of the environmental plasticity of secondary cell wall (SCW) biosynthesis restricts large‐scale biomass and bioenergy production on marginal lands. Using Populus (poplar), a key bioenergy crop, we discovered that iron deprivation, a prevalent abiotic stress on marginal lands, stimulates SCW biosynthesis ...
Dimiru Tadesse, Yuqiu Dai, Gen Li, Lin Yang, Yang Yang, Nidhi Dwivedi, Desigan Kumaran, Crysten E. Blaby‐Haas, Anna Lipzen, Kassandra Santiago, Kerrie Barry, Gary Coleman, Yiping Qi, Chang‐Jun Liu, Meng Xie   +14 more
wiley   +1 more source

PSOSP uncovers pervasive SOS‐independent prophages with distinct genomic and host traits in bacterial genomes

iMeta, Volume 4, Issue 5, October 2025.
Prophages are ubiquitously present in bacterial genomes, significantly influencing host physiological and ecological functions. We present Prophage SOS‐dependency Predictor (PSOSP), a novel bioinformatics tool that predicts prophages induction modes by analyzing the Heterology Index (HI) of LexA protein binding to target DNA, classifying prophages into
Yali Hao, Mujie Zhang, Xinjuan Lei, Chengrui Zhu, Taoliang Zhang, Yanping Zheng, Xiang Xiao, Huahua Jian   +7 more
wiley   +1 more source

LexA repressor forms stable dimers in solution. The role of specific dna in tightening protein-protein interactions.

The Journal of biological chemistry, 2000
Cooperativity in the interactions among proteins subunits and DNA is crucial for DNA recognition. LexA repressor was originally thought to bind DNA as a monomer, with cooperativity leading to tighter binding of the second monomer. The main support for this model was a high value of the dissociation constant for the LexA dimer (micromolar range).
R, Mohana-Borges, A B, Pacheco, F J, Sousa, D, Foguel, D F, Almeida, J L, Silva   +5 more
openaire   +1 more source

Transcription factors ERF74/77/108/125 enhance thermotolerance in rice by regulating common and distinct heat‐responsive gene expression

Plant Biotechnology Journal, Volume 23, Issue 10, Page 4539-4551, October 2025.
Summary Heat stress severely impacts crop productivity, necessitating the identification of key regulatory genes for improving thermotolerance. Here, we demonstrate that the rice nuclear‐localized AP2/ERF transcription factors ERF74/77/108/125 function as critical regulators of heat stress responses.
Anni Luo, Chuang Yang, Zi‐Wei Yao, Lin‐Lin Zhang, Huaxun Ye, Jian‐Hong Xu, Hai‐Ping Lu, Jian‐Xiang Liu   +7 more
wiley   +1 more source

Factors determining chromosomal localization of transposable elements in plants

Plant Biology, Volume 27, Issue 6, Page 975-989, October 2025.
We review transposon chromosomal niches, and the functional consequences of their specific chromosomal localization in plants. Abstract Transposable elements (TEs) constitute a significant part of plant genomes and shape their genomic landscape. While some TEs are ubiquitously dispersed, other elements specifically occupy discrete genomic loci.
E. Kejnovsky, P. Jedlicka, M. Lexa, Z. Kubat   +3 more
wiley   +1 more source