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Magic Pools: Parallel Assessment of Transposon Delivery Vectors in Bacteria

Journal Article · · mSystems
 [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Genomics and Systems Biology Div.
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Earth and Environmental Sciences Area
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Genomics and Systems Biology Div.; Univ. of California, Berkeley, CA (United States). Dept. of Bioengineering

Transposon mutagenesis coupled to next-generation sequencing (TnSeq) is a powerful approach for discovering the functions of bacterial genes. However, the development of a suitable TnSeq strategy for a given bacterium can be costly and time-consuming. To meet this challenge, we describe a part-based strategy for constructing libraries of hundreds of transposon delivery vectors, which we term “magic pools.” Within a magic pool, each transposon vector has a different combination of upstream sequences (promoters and ribosome binding sites) and antibiotic resistance markers as well as a random DNA barcode sequence, which allows the tracking of each vector during mutagenesis experiments. To identify an efficient vector for a given bacterium, we mutagenize it with a magic pool and sequence the resulting insertions; we then use this efficient vector to generate a large mutant library. We used the magic pool strategy to construct transposon mutant libraries in five genera of bacteria, including three genera of the phylum Bacteroidetes.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1434009
Alternate ID(s):
OSTI ID: 1582038
Journal Information:
mSystems, Journal Name: mSystems Journal Issue: 1 Vol. 3; ISSN 2379-5077
Publisher:
American Society for MicrobiologyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Mutant phenotypes for thousands of bacterial genes of unknown function journal May 2018
SynMyco transposon: engineering transposon vectors for efficient transformation of minimal genomes journal June 2019
Abiotic Factors Promote Cell Penetrating Peptide Permeability in Enterobacteriaceae Models journal November 2019

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Rapid quantification of mutant fitness in diverse bacteria by sequencing randomly bar-coded transposons
Journal Article · Tue May 12 00:00:00 EDT 2015 · mBio (Online) · OSTI ID:1215637