Results 21 to 30 of about 19,012 (177)

RstAB activates type 1 fimbriae to promote uropathogenic Escherichia coli bladder invasion [PDF]

iScience
Summary: Urinary tract infections (UTIs), primarily caused by uropathogenic Escherichia coli (UPEC), are a significant public health problem. UPEC relies on type 1 fimbria to invade bladder epithelial cells (BECs), which is a crucial step in the ...
Qian Wang, Xinyu Gao, Jiamin Qian, Jianwei Mu, Ruiying Liu, Xiaoya Li, Xueping Li, Chen Jin, Lu Feng, Mingqing Zhang, Yu Pang   +10 more
doaj   +2 more sources

Engineering and Evaluation of a Live-Attenuated Vaccine Candidate with Enhanced Type 1 Fimbriae Expression to Optimize Protection Against Salmonella Typhimurium [PDF]

Vaccines
Background:Salmonella Typhimurium is a major zoonotic pathogen, in which type 1 fimbriae play a crucial role in intestinal colonization and immune modulation.
Patricia García, Arianna Rodríguez-Coello, Andrea García-Pose, María Del Carmen Fernández-López, Andrea Muras, Miriam Moscoso, Alejandro Beceiro, Germán Bou   +7 more
doaj   +2 more sources

Evolutionary Analysis Points to Divergent Physiological Roles of Type 1 Fimbriae in Salmonella and Escherichia coli [PDF]

mBio, 2013
Salmonella and Escherichia coli mannose-binding type 1 fimbriae exhibit highly similar receptor specificities, morphologies, and mechanisms of assembly but are nonorthologous in nature, i.e., not closely related evolutionarily.
Dagmara I. Kisiela, Sujay Chattopadhyay, Veronika Tchesnokova, Sandip Paul, Scott J. Weissman, Irena Medenica, Steven Clegg, Evgeni V. Sokurenko   +7 more
doaj   +2 more sources

Arginine within a specific motif near the N‐terminal of FimY is critical for the maximal production of type 1 fimbriae in Salmonella enterica serovar Typhimurium [PDF]

MicrobiologyOpen, 2019
An important Salmonella serovar for both human and animals Salmonella Typhimurium possesses 13 gene clusters that have the potential to produce fimbrial structure, among which the type 1 fimbriae with the binding specificity to mannose residue is the ...
Nan‐Ling Kuan, Kuang‐Sheng Yeh
doaj   +2 more sources

Distinct mutations led to inactivation of type 1 fimbriae expression in Shigella spp. [PDF]

PLoS One, 2015
Shigella spp. are responsible for bacillary dysentery in humans. The acquisition or the modification of the virulence plasmid encoding factors promoting entry of bacteria into and dissemination within epithelial cells was a critical step in the evolution of these bacteria from their Escherichia coli ancestor(s).
Bravo V, Puhar A, Sansonetti P, Parsot C, Toro CS.   +4 more
europepmc   +6 more sources

Porphyromonas gingivalis fimbriae

Journal of Oral Microbiology, 2013
Marginal periodontitis is not a homogeneous disease but is rather influenced by an intricate set of host susceptibility differences as well as diversities in virulence among the harbored organisms. It is likely that clonal heterogeneity of subpopulations
Kazuhiko Nakano, Atsuo Amano, Morten Enersen   +2 more
exaly   +3 more sources

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

Type 1 fimbriae of Salmonella enteritidis [PDF]

Journal of Bacteriology, 1991
Salmonella enteritidis was previously shown to produce fimbriae composed of 14,000-molecular-weight (Mr) fimbrin monomers (J. Feutrier, W. W. Kay, and T. J. Trust, J. Bacteriol. 168:221-227, 1986). Another distinct fimbrial structure, comprising 21,000-Mr fimbrin monomers, has now been identified.
K H, Müller, S K, Collinson, T J, Trust, W W, Kay   +3 more
openaire   +2 more sources

The role of urease in the acid stress response and fimbriae expression in Klebsiella pneumoniae CG43

Journal of Microbiology, Immunology and Infection, 2022
Background/purpose: Two urease operons were identified in Klebsiella pneumoniae CG43, ure-1 and ure-2. This study investigates whether a differential regulation of the expression of ure-1 and ure-2 exists and how urease activity influences the acid ...
Wei-Feng Lin, Rong-Yu Hu, Hwan-You Chang, Fang-Yu Lin, Chih-Hao Kuo, Li-Hsin Su, Hwei-Ling Peng   +6 more
doaj   +1 more source

Antigens Of The Type-2 Fimbriae Of Salmonellae: "Cross-Reacting Material" (Crm) Of Type-1 Fimbriae [PDF]

Journal of Medical Microbiology, 1971
Summary Antisera were prepared against the type-1 fimbriae of three strains of Salmonella paratyphi B and against the type-2 fimbriae of two strains of S. paratyphi B and one strain of S. pullorum. The anti-type-1 and anti-type-2 sera agglutinated fimbriate-phase bacteria possessing either type-1 or type-2 fimbriae.
D C, Old, S B, Payne
openaire   +2 more sources