Evidence map›Paper›PMID 31098740›Full record

ReviewMolecular genetics and genomics : MGG2019

Analysis of direct repeats and spacers of CRISPR/Cas systems type I-F in Brazilian clinical strains of Pseudomonas aeruginosa.

Ana Carolina de Oliveira Luz, Julia Mariana Assis da Silva, Antonio Mauro Rezende, Maria Paloma Silva de Barros, Tereza Cristina Leal-Balbino

Abstract readReview
PubMed Publisher
In one paragraph

Review in Molecular genetics and genomics : MGG, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.4field-weighted citation impact, top 38% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. CRISPR Element Patterns vs. Pathoadaptability of ClinicalAntibiotics (Basel, Switzerland) · 2021
    Article
  7. Article
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Ana Carolina de Oliveira LuzDepartamento de Genética, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
Julia Mariana Assis da SilvaDepartamento de Microbiologia, Instituto Aggeu Magalhães, Recife, Pernambuco, Brazil.
Antonio Mauro RezendeDepartamento de Microbiologia, Instituto Aggeu Magalhães, Recife, Pernambuco, Brazil.
Maria Paloma Silva de BarrosDepartamento de Microbiologia, Instituto Aggeu Magalhães, Recife, Pernambuco, Brazil.
Tereza Cristina Leal-BalbinoDepartamento de Microbiologia, Instituto Aggeu Magalhães, Recife, Pernambuco, Brazil. cristina@cpqam.fiocruz.br.
Universidade Federal de Pernambuco · BR

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico 404016/2016-2Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco APQ-0836-2.02/16
6 · The paper itself

Abstract

CRISPR/Cas is an adaptive immune system found in prokaryotes, with the main function of protecting these cells from invasion and possible death by mobile genetic elements. Pseudomonas aeruginosa is considered a model for type I-F CRISPR/Cas system studies. However, its CRISPR loci characteristics have not yet been thoroughly described, and its function has not yet been fully unraveled. The aims of this study were to find the frequency of the system in Brazilian clinical isolates; to identify the loci sequence, its spacer diversity and its origins; as well as to propose a unified spacer library to aid in future structural studies of the CRISPR loci of P. aeruginosa. We investigated types I-F and I-E gene markers to establish CRISPR/Cas typing, and observed two strains harboring both systems simultaneously, a very rare feature. Through amplification and sequencing of CRISPR loci related to type I-F system, we describe polymorphisms in DRs and 350 spacers, of which 97 are new. The spacers that were identified had their possible organisms or proteins of origin identified. Spacer arrays were grouped in five different CRISPR patterns and the plasticity was inferred by rearrangements in spacer arrays. Here, we perform the first detailed and focused description of CRISPR/Cas elements in Brazilian clinical strains of P. aeruginosa. Our findings reflect active and highly diverse CRISPR loci, and we suggest that CRISPR/Cas may also pose as a transcriptional regulatory mechanism. The structural and diversity features described here can provide insights into the function of CRISPR/Cas in this pathogen and help guide the development of new therapeutic strategies.

Indexed as

BrazilClustered Regularly Interspaced Short Palindromic RepeatsCRISPR-Cas SystemsGenetic MarkersPseudomonas aeruginosaTranscription, GeneticGenetic MarkersBacteriophagesCRISPR/CasI-EI-FPlasmidsPseudomonas aeruginosa

Identifiers

PMID31098740
OpenAlexW2945829737

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.