# The SyngenicDNA and ÃÂÃÂÃÂÃÂ¼POET Platform: Overcoming Innate Barriers to Genetic Engineering in Bacteria.

> **NIH NIH R01** · FRED HUTCHINSON CANCER RESEARCH CENTER · 2021 · $121,749

## Abstract

Genetic engineering is a powerful approach for discovering fundamental aspects of bacterial physiology,
metabolism, and pathogenesis. The problem is the vast majority of bacteria that can be grown in a laboratory
remain genetically intractable, beyond the power of genetics for elucidating function or for engineering for human
use. The challenge of genetic intractability stymies basic-, synthetic-, and translational-microbiology research
and development. Researchers spend years constructing ad hoc genetic systems one species at a time, an
arduous and expensive process. Here, we introduce a groundbreaking, rapid, broadly applicable technology for
rendering any cultivable bacterial species genetically tractable, irrespective of taxonomic lineage or genetic and
physical barriers. We expect our approach will transform microbial research in medicine, the environment, and
biotechnology. Our SyngenicDNA-μPOET (Microfluidic Parametric Optimization of Electroporation based
Transformation) platform is a combination of two entirely novel, broadly applicable, and currently unavailable
technologies, co-operatively designed to overcome the two underlying causes of genetic intractability within most
bacteria. The first new technology, SyngenicDNA, overcomes the complex bacterial defense mechanisms that
degrade non-self DNA by using a rapid host-mimicking strategy. This novel strategy recodes the DNA of any
genetic tool (e.g., plasmids or transposons) to eliminate target non-self signatures recognized by a specific
bacterial strain of interest, thus preventing DNA degradation by innate Restriction Modification (RM) and
Clustered Regularly Interspaced Short Palindromic Repeat (CRISPR)-Cas systems. The second new
technology, μPOET, overcomes the physical barrier to non-self DNA entry using microfluidics and robotics.
μPOET leverages high-throughput microfluidic electroporation to create a transformation platform compatible
with 96-well plate liquid handling systems to enable rapid screening of electroporation conditions, two to three
orders of magnitude faster than traditional cuvette based approaches. Once established, the SyngenicDNA-
μPOET platform will be a resource allowing the generation of genetic tractability in virtually any cultivable
bacterial species over the span of weeks, rather than years. As proof of principle, we will demonstrate the power
of the SyngenicDNA-μPOET platform on the human oral microbiome. The paucity of genetically tractable
bacteria is a formidable challenge to deciphering the functional attributes of members of the human microbiome.
We will expand the current Human Oral Microbiome Database (HOMD) and establish the Human Oral
Microbiome Culture (HOMC) collection: an initial repository of 200 model bacterial strains representing species
across six different phyla within the oral microbiome, each made genetically tractable using the SyngenicDNA-
μPOET platform. This resource will rapidly accelerate fundamental investigations into the r...

## Key facts

- **NIH application ID:** 10232149
- **Project number:** 5R01DE027850-06
- **Recipient organization:** FRED HUTCHINSON CANCER RESEARCH CENTER
- **Principal Investigator:** Christopher D Johnston
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2021
- **Award amount:** $121,749
- **Award type:** 5
- **Project period:** 2017-09-08 → 2022-03-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10232149

## Citation

> US National Institutes of Health, RePORTER application 10232149, The SyngenicDNA and ÃÂÃÂÃÂÃÂ¼POET Platform: Overcoming Innate Barriers to Genetic Engineering in Bacteria. (5R01DE027850-06). Retrieved via AI Analytics 2026-05-22 from https://api.ai-analytics.org/grant/nih/10232149. Licensed CC0.

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