Genome-wide CRISPR-dCas9 screens in E. coli identify essential genes and phage host factors

F Rousset, L Cui, E Siouve, C Becavin… - PLoS …, 2018 - journals.plos.org
High-throughput genetic screens are powerful methods to identify genes linked to a given
phenotype. The catalytic null mutant of the Cas9 RNA-guided nuclease (dCas9) can be …

Morphological and transcriptional responses to CRISPRi knockdown of essential genes in Escherichia coli

MR Silvis, M Rajendram, H Shi, H Osadnik, AN Gray… - MBio, 2021 - Am Soc Microbiol
ABSTRACT CRISPR interference (CRISPRi) has facilitated the study of essential genes in
diverse organisms using both high-throughput and targeted approaches. Despite the …

[PDF][PDF] Mismatch-CRISPRi reveals the co-varying expression-fitness relationships of essential genes in Escherichia coli and Bacillus subtilis

JS Hawkins, MR Silvis, BM Koo, JM Peters, H Osadnik… - Cell Systems, 2020 - cell.com
Essential genes are the hubs of cellular networks, but lack of high-throughput methods for
titrating gene expression has limited our understanding of the fitness landscapes against …

A CRISPRi screen in E. coli reveals sequence-specific toxicity of dCas9

L Cui, A Vigouroux, F Rousset, H Varet… - Nature …, 2018 - nature.com
High-throughput CRISPR-Cas9 screens have recently emerged as powerful tools to
decipher gene functions and genetic interactions. Here we use a genome-wide library of …

Improved sgRNA design in bacteria via genome-wide activity profiling

J Guo, T Wang, C Guan, B Liu, C Luo, Z Xie… - Nucleic acids …, 2018 - academic.oup.com
CRISPR/Cas9 is a promising tool in prokaryotic genome engineering, but its success is
limited by the widely varying on-target activity of single guide RNAs (sgRNAs). Based on the …

On-target activity predictions enable improved CRISPR–dCas9 screens in bacteria

A Calvo-Villamañán, JW Ng, R Planel… - Nucleic acids …, 2020 - academic.oup.com
The ability to block gene expression in bacteria with the catalytically inactive mutant of Cas9,
known as dCas9, is quickly becoming a standard methodology to probe gene function …

Phage-Induced Expression of CRISPR-Associated Proteins Is Revealed by Shotgun Proteomics in Streptococcus thermophilus

JC Young, BD Dill, C Pan, RL Hettich, JF Banfield… - PloS one, 2012 - journals.plos.org
The CRISPR/Cas system, comprised of clustered regularly interspaced short palindromic
repeats along with their associated (Cas) proteins, protects bacteria and archaea from viral …

Genome engineering of virulent lactococcal phages using CRISPR-Cas9

ML Lemay, DM Tremblay, S Moineau - ACS synthetic biology, 2017 - ACS Publications
Phages are biological entities found in every ecosystem. Although much has been learned
about them in past decades, significant knowledge gaps remain. Manipulating virulent …

Bacterial CRISPR screens for gene function

H Todor, MR Silvis, H Osadnik, CA Gross - Current opinion in microbiology, 2021 - Elsevier
Highlights•Bacterial CRISPR approaches are used for gene editing, repression, and
activation.•CRISPRi, which blocks transcription of targeted genes, is the main bacterial …

Orthologous CRISPR–Cas9 enzymes for combinatorial genetic screens

FJ Najm, C Strand, KF Donovan, M Hegde… - Nature …, 2018 - nature.com
Combinatorial genetic screening using CRISPR–Cas9 is a useful approach to uncover
redundant genes and to explore complex gene networks. However, current methods suffer …