Results 21 to 30 of about 34,082 (276)

Diversity in Genetic Regulation of Bacterial Fimbriae Assembled by the Chaperone Usher Pathway

International Journal of Molecular Sciences, 2022
Bacteria express different types of hair-like proteinaceous appendages on their cell surface known as pili or fimbriae. These filamentous structures are primarily involved in the adherence of bacteria to both abiotic and biotic surfaces for biofilm ...
D. K. Gahlot, Nayyer Taheri, S. Macintyre   +2 more
semanticscholar   +1 more source

SdiA, a Quorum-Sensing Regulator, Suppresses Fimbriae Expression, Biofilm Formation, and Quorum-Sensing Signaling Molecules Production in Klebsiella pneumoniae

Frontiers in Microbiology, 2021
Klebsiella pneumoniae is a Gram-negative pathogen that has become a worldwide concern due to the emergence of multidrug-resistant isolates responsible for various invasive infectious diseases. Biofilm formation constitutes a major virulence factor for K.
Thaisy Pacheco, A. E. I. Gomes, Nathália Maria Gonçalves Siqueira, Lucas Assoni, M. Darrieux, H. Venter, L. Ferraz   +6 more
semanticscholar   +1 more source

Role of the stress-responsive two-component system CpxAR in regulating fimbriae expression in Klebsiella pneumoniae CG43

Journal of Microbiology, Immunology and Infection, 2023
Background: CpxAR is a two-component system that allows bacteria to reorganize envelope structures in response to extracellular stimuli. CpxAR negatively affects type 1 fimbriae expression in Klebsiella pneumoniae CG43, a hypervirulent strain.
Chih-Hao Kuo, Wei-Feng Lin, Chia-Jui Liu, Zhe-Chong Wang, Ting-Yi Liu, Hwei-Ling Peng   +5 more
doaj   +1 more source

Dictamnine Inhibits the Adhesion to and Invasion of Uropathogenic Escherichia Coli (UPEC) to Urothelial Cells

Molecules, 2022
Uropathogenic Escherichia coli (UPEC) is the most common pathogenic bacteria associated with urinary tract infection (UTI). UPEC can cause UTI by adhering to and invading uroepithelial cells. Fimbriae is the most important virulence factor of UPEC, and a
Wenbo Yang, Peng Liu, Ying Chen, Qingyu Lv, Zhongtian Wang, Wenhua Huang, Hua Jiang, Yuling Zheng, Yongqiang Jiang, Liping Sun   +9 more
doaj   +1 more source

The Number and Type of Chaperone-Usher Fimbriae Reflect Phylogenetic Clade Rather than Host Range in Salmonella

mSystems, 2022
Salmonella is one of the most successful foodborne pathogens worldwide, owing in part to its ability to colonize or infect a wide range of hosts. Salmonella serovars are known to encode a variety of different fimbriae (hairlike organelles that facilitate
Rachel A. Cheng, Renato H. Orsi, Martin Wiedmann   +2 more
doaj   +1 more source

Structural and antigenic characterization of a novel genotype of Mfa1 fimbriae in Porphyromonas gingivalis

Journal of Oral Microbiology, 2023
Background Mfa1 fimbriae of the periodontal pathogen Porphyromonas gingivalis are responsible for biofilm formation and comprise five proteins: Mfa1–5. Two major genotypes, mfa170 and mfa153, encode major fimbrillin.
Miyuna Fujimoto, Yoshikazu Naiki, Kotaro Sakae, Tomohiko Iwase, Naoyoshi Miwa, Keiji Nagano, Hiroyuki Nawa, Yoshiaki Hasegawa   +7 more
doaj   +1 more source

bolA gene involved in curli amyloids and fimbriae production in E. coli: exploring pathways to inhibit biofilm and amyloid formation

Journal of Biological Research - Thessaloniki, 2020
Biofilm formation is a complex phenomenon of bacterial cells, involved in several human infections. Its formation is regulated and controlled by several protein factors. The BolA-like proteins (bolA gene) are conserved in both prokaryotes and eukaryotes.
Mohd W. Azam, Azna Zuberi, Asad U. Khan
semanticscholar   +1 more source

Detection of Porphyromonas gingivalis fimA Type I Genotype in Gingivitis by Real-Time PCR–A Pilot Study [PDF]

Journal of Clinical and Diagnostic Research, 2016
Introduction: Published literature till date reveals a high prevalence of Porphyromonas gingivalis fimA type I genotype among healthy subjects. Quite a few studies have reported its prevalence also in periodontitis patients. Nevertheless incidence of
Mahalakshmi Krishnan, Padma Krishnan, S.C. Chandrasekaran   +2 more
doaj   +1 more source

Regulation of poly-GlcNAc expression and fimbriation in uropathogenic "E. coli" [PDF]

, 2013
The transition of planktonic to sessile lifestyles in bacteria rests upon a tightly controlled program that gets triggered by the environmental composition and whose implementation requires multiple feedback controls. Uropathogenic E.
Hosch, Lucie
core   +1 more source

Modes of evolution in a parasite?host interaction: Dis-entangling factors determining the evolution of regulated fimbriation in E. coli [PDF]

, 2008
Escherichia coli expresses type-I fimbriae; these are protrusions from the outer cell wall and have been identified as a virulence factor. They are also expressed by commensal strains of E.
Chu, Dominique
core   +1 more source