Microbial Strain Engineering

Pseudomonas putida Strain Development and Screening Services

Customized strain engineering services to evaluate Pseudomonas putida for production of biochemicals, proteins, or environmental remediation.

End-to-end strain engineering from design to characterized clones
High-throughput screening for target production or degradation.
Comprehensive analytical characterization and genetic stability.

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Why Choose Our P. putida Strain Development Service?

We provide integrated design-build-test-learn workflows tailored to your target molecule, leveraging the natural metabolic versatility of Pseudomonas putida for robust industrial performance.

Rational and combinatorial engineering strategies
Scalable from shake-flask to bench bioreactor
Detailed performance data and QC documentation
Experienced project management and milestone reporting

Customized Engineering

Iterative Optimization

Analytical Rigor

Our Approach

Integrated Strain Development for Pseudomonas putida

We combine rational pathway engineering with directed evolution and high-throughput screening to develop Pseudomonas putida strains that meet your production goals.

Rational Strain Engineering

We design targeted modifications to metabolic pathways in P. putida to evaluate flux toward your product of interest. This includes gene knockouts, knock-ins, and promoter tuning.

Targeted gene deletions and insertions
Pathway balancing and promoter engineering
Integration into stable genomic loci

Combinatorial Mutagenesis and Screening

For complex traits, we generate diverse mutant libraries using error-prone PCR or transposon mutagenesis and screen for improved production or degradation.

Library construction (size scoped per project)
High-throughput growth and product assays
Hit identification and confirmation

Design-Build-Test-Learn Cycle

Iterative cycles of strain design, construction, screening, and analysis to progressively evaluate performance.

Analytical Characterization

Quantitative product analysis using HPLC, GC-MS, or other methods; growth monitoring and metabolite profiling.

Genetic Stability Assurance

Evaluation of plasmid retention, genomic integrity, and strain purity to support consistent performance over generations.

Deliverables

What You Receive

Each project includes a comprehensive handoff package with engineered strains and supporting data.

Standard Deliverables

Engineered strain bank (multiple candidate clones, as scoped)
Performance data report: growth curves, product titers, and rates
Plasmid constructs with sequence files (when plasmid-based)
Glycerol stocks and Certificates of Analysis

Optional Add-Ons

Scale-up fermentation data (up to bench bioreactor scale)
Extended stability monitoring over multiple passages
In silico off-target assessment (for CRISPR/Cas-edited strains)
Documentation for regulatory or patent filing support

Scope

Service Parameters

Projects are tailored to your specific target and requirements. Typical scoping parameters include:

Parameter	Typical project scope
Host Strain	ATCC or proprietary P. putida backgrounds (e.g., KT2440, ATCC 12633) as specified
Engineering Strategy	Rational design (gene knockout/insertion), combinatorial mutagenesis, or targeted CRISPR-based editing, defined per project
Screening Method	Scoped per project after consultation
Analytical Method	HPLC, GC-MS, UV-vis spectrophotometry, or enzymatic assays as required for your product
Scale-Up Depth	Shake-flask to bench-top bioreactor (up to 5 L) included when scoped; larger scale upon request
QC Checks	Genetic stability (plasmid retention, genome integrity), purity
Project Duration	Defined during project scoping based on target complexity and number of engineering cycles

Workflow

How It Works

Our strain development process follows a structured design-build-test-learn flow to support efficient delivery.

Strain Selection and Project Scoping

We review your target compound, desired production metrics, and timeline to select the appropriate P. putida base strain and define the engineering strategy.

Engineering Strategy Design

Our team designs a tailored approach including gene knockouts, heterologous pathway integration, or library construction, with in silico analysis to prioritize modifications.

Strain Construction and Library Generation

We construct the engineered strains using established methods (allelic exchange, CRISPR/Cas, or transposon mutagenesis) and generate screening libraries as planned.

High-Throughput Screening and Iteration

Libraries or individual clones are screened using plate-based assays for product yield or degradation activity. Top hits are confirmed and may be advanced to further engineering cycles.

Lead Strain Characterization and Handoff

Final selected strains are fully characterized for growth, production, stability, and purity. A deliverable package with strains, data, and documentation is provided.

Applications

Where Our Service Is Applied

Pseudomonas putida is a versatile host for a range of industrial and environmental applications.

Biochemical Production

Develop P. putida strains for high-yield production of biofuels, bioplastics monomers, amino acids, or other value-added chemicals from renewable feedstocks.

Pathway engineering for target metabolite
Carbon flux optimization
Fed-batch fermentation proof-of-concept

Bioremediation

Engineer P. putida strains with enhanced ability to degrade pollutants such as hydrocarbons, pesticides, or industrial chemicals in environmental applications.

Degradation pathway expansion
Tolerance screening
Performance evaluation in simulated environments

Enzyme and Protein Production

Evaluate P. putida as a host for recombinant protein or enzyme expression, leveraging its high tolerance to solvents and low protease background.

Codon optimization and expression tuning
Secretion pathway engineering
Yield and activity characterization

FAQ

Frequently Asked Questions

Common questions about our Pseudomonas putida strain development service.

We work with commonly used laboratory strains such as P. putida KT2440, ATCC 12633, and other ATCC backgrounds. Customers may also provide their own proprietary strains for engineering, subject to viability assessment.
Screening methods are tailored to the target: we use growth-coupled assays, fluorescent reporters, or direct product quantification (HPLC/GC-MS) depending on the molecule. Library sizes and screening depth are scoped per project to balance throughput and cost.
Yes, scale-up from shake-flask to bench-top bioreactor (up to 5 L) is available as an optional add-on. Larger-scale feasibility studies can be discussed during project scoping.
Each engineered strain undergoes genetic stability checks (including plasmid retention and genome integrity), purity verification, and reproducible performance testing over at least three sequential passages. A Certificate of Analysis accompanies each deliverable.

Scientific Literature

References

Wen Q, Chen J, Li J, et al. A single-plasmid-based, easily curable CRISPR/Cas9 system for rapid, iterative genome editing in Pseudomonas putida KT2440. Microbial cell factories. 2024;23(1):349. View on PubMed
Martínez I, Mohamed ME, García JL, et al. Enhancing biodesulfurization by engineering a synthetic dibenzothiophene mineralization pathway. Frontiers in microbiology. 2022;13:987084. View on PubMed
Safari M, Motamedi E, Kari Dolatabad H, et al. Nano-carriers effects on the viability and efficiency of Pseudomonas strains as phosphate solubilizing bacteria. Heliyon. 2020;6(10):e05076. View on PubMed

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