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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Comprehensive analysis of type 1 fimbriae regulation in fimB‐null strains from the multidrug resistant Escherichia coli ST131 clone
|
|---|---|
| Published in |
Molecular Microbiology, July 2016
|
| DOI | 10.1111/mmi.13442 |
| Pubmed ID | |
| Authors |
Sohinee Sarkar, Leah W. Roberts, Minh‐Duy Phan, Lendl Tan, Alvin W. Lo, Kate M. Peters, David L. Paterson, Mathew Upton, Glen C. Ulett, Scott A. Beatson, Makrina Totsika, Mark A. Schembri |
| Abstract |
Uropathogenic Escherichia coli (UPEC) of sequence type 131 (ST131) are a pandemic multidrug resistant clone associated with urinary tract and bloodstream infections. Type 1 fimbriae, a major UPEC virulence factor, are essential for ST131 bladder colonization. The globally dominant sub-lineage of ST131 strains, clade C/H30-R, possess an ISEc55 insertion in the fimB gene that controls phase-variable type 1 fimbriae expression via the invertible fimS promoter. We report that inactivation of fimB in these strains causes altered regulation of type 1 fimbriae expression. Using a novel read-mapping approach based on Illumina sequencing, we demonstrate that 'off' to 'on' fimS inversion is reduced in these strains and controlled by recombinases encoded by the fimE and fimX genes. Unlike typical UPEC strains, the nucleoid-associated H-NS protein does not strongly repress fimE transcription in clade C ST131 strains. Using a genetic screen to identify novel regulators of fimE and fimX in the clade C ST131 strain EC958, we defined a new role for the guaB gene in the regulation of type 1 fimbriae and in colonisation of the mouse bladder. Our results provide a comprehensive analysis of type 1 fimbriae regulation in ST131, and highlight important differences in its control compared to non-ST131 UPEC. This article is protected by copyright. All rights reserved. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Practitioners (doctors, other healthcare professionals) | 1 | 50% |
| Scientists | 1 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 33 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 9 | 27% |
| Student > Ph. D. Student | 4 | 12% |
| Researcher | 3 | 9% |
| Professor | 2 | 6% |
| Student > Doctoral Student | 2 | 6% |
| Other | 5 | 15% |
| Unknown | 8 | 24% |
| Readers by discipline | Count | As % |
|---|---|---|
| Biochemistry, Genetics and Molecular Biology | 9 | 27% |
| Agricultural and Biological Sciences | 6 | 18% |
| Medicine and Dentistry | 4 | 12% |
| Immunology and Microbiology | 3 | 9% |
| Chemical Engineering | 1 | 3% |
| Other | 2 | 6% |
| Unknown | 8 | 24% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 June 2016.
All research outputs
#14,727,496
of 22,879,161 outputs
Outputs from Molecular Microbiology
#5,512
of 6,704 outputs
Outputs of similar age
#215,310
of 355,951 outputs
Outputs of similar age from Molecular Microbiology
#48
of 71 outputs
Altmetric has tracked 22,879,161 research outputs across all sources so far. This one is in the 35th percentile – i.e., 35% of other outputs scored the same or lower than it.
So far Altmetric has tracked 6,704 research outputs from this source. They receive a mean Attention Score of 4.9. This one is in the 17th percentile – i.e., 17% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 355,951 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 38th percentile – i.e., 38% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 71 others from the same source and published within six weeks on either side of this one. This one is in the 32nd percentile – i.e., 32% of its contemporaries scored the same or lower than it.