Back

CauloKO: an ordered transposon mutant library in Caulobacter crescentus

Moore, G. M.; Ramos, J. G.; Bratton, B. P.; Gitai, Z.

2022-11-03 microbiology
10.1101/2022.11.02.514973 bioRxiv
Show abstract

Genetic screens are powerful approaches to unveiling new biological insight and ordered redundant transposon libraries have emerged as a primary tool for performing screens of known genetic saturation. Newer sequencing methods based on combinatorial pooling have lowered the cost and time required to generate these libraries. Caulobacter crescentus is a gramnegative bacterium that has served as a model for understanding bacterial physiology with a myriad of genetic tools. To add to this collection of tools, we created CauloKO - the first ordered, transposon library in C. crescentus. CauloKO includes insertion mutants in 86% of all non-essential genes and 77% of all open reading frames of strain CB15. CauloKO insertion mutants were validated using Sanger sequencing. We also present phenotypic analysis of the CauloKO library using a crystal violet screen for biofilm mutants, which both confirmed previous results and identified new mutants for future studies. This combined approach revealed that the CauloKO library shows promise for screening applications, particularly for phenotypes that require monoclonal populations of cells.

Matching journals

The top 8 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.