Non-viral stable cell line engineering

Sleeping Beauty Stable Cell Line Service

Build robust, integration-ready cell models using the Sleeping Beauty transposon system — non-viral, high cargo capacity, and faster turnaround than lentiviral packaging.

Non-viral stable cell line engineering

Sleeping Beauty Stable Cell Line Service

Build robust, integration-ready cell models using the Sleeping Beauty transposon system — non-viral, high cargo capacity, and faster turnaround than lentiviral packaging.

Non-viral DNA delivery

Non-viral DNA delivery

Up to ~10–15 kb cargo capacity

Streamlined plasmid-only workflow

Why Sleeping Beauty?

Sleeping Beauty (SB) transposon–based integration offers a powerful alternative to viral vectors. For many research applications, SB enables simpler logistics, larger genetic payloads, and faster project execution — without the need to produce high-titer viral stocks.


  • Plasmid-only workflow, no viral production.

  • Reduced biosafety and logistics burden compared to lentivirus or AAV.

Non Viral and Straightforward


  • Efficient integration of large transgenes, multi-cistronic cassettes, or genetic circuits.

  • Ideal when your construct exceeds typical lentiviral size limits.

High cargo capacity


  • No viral packaging lead time or QC.

  • Faster “design → construct → stable line” cycle at competitive cost.

Cost- and time-efficient

Applications

Our Sleeping Beauty platform is optimized for research teams who need reproducible, integration-ready cell models without the overhead of viral production.

CAR / TCR and receptor engineering

Stable expression of CARs, TCRs, or synthetic receptors for functional assays and optimization.

Reporter and sensor cell lines

Integration of fluorescent or luminescent reporters, biosensors, or CRISPR activity readouts.

Large transgene and circuit expression

Overexpression of large cDNAs, polycistronic cassettes, or genetic circuits that challenge viral packaging limits.

Stable expression for screening & assay development

Building robust assay cell lines prior to CRISPR screens, drug response profiling, or antibody testing.

Workflow Overview

We handle the complete process — from construct design through assay-ready, cryopreserved vials.

Project design & vector strategy

We review your target(s), construct design, and cell line requirements, then recommend an SB vector configuration, selection marker, and transposase format (DNA or mRNA).

Plasmid construction & QC

We clone your gene(s) or cassette into a Sleeping Beauty transposon backbone and perform sequence-verified QC.

Transfection & transposition

Your chosen parental cell line is co-transfected with SB transposon and transposase. We optimize conditions to balance integration efficiency and cell health.

Selection & enrichment

Antibiotic selection and/or fluorescence-based enrichment (if applicable) are used to establish stable, bulk populations.

Clonal isolation (optional)

For applications requiring defined integration profiles or uniform expression, we isolate single-cell clones and expand multiple candidates.

Characterization & deliverables

We confirm transgene expression and basic phenotype (per agreed-upon assays), then provide validated cell vials, sequence maps, and a concise data report.

Service Packages

Pilot Stable Pool for <5kb inserts

From $1,999

Sleeping Beauty construct design & cloning (1 cassette)

Transfection & antibiotic selection

Bulk stable pool (no clonal isolation)

Basic expression QC (qRT-PCR)

2 weeks TAT

Custom / Complex Constructs

From $3,999

Support for large (Up to 15 kb) or multi-gene constructs

4 weeks TAT

Assay-Ready Clonal Line

From $4,999

Single-cell cloning (e.g., limiting dilution / FACS)

4–8 candidate clones screened

1–2 lead clones fully expanded and banked

Extended expression QC (fluorescence / Western blot / flow cytometry)

Note: Cloning service is an extra charge. All services are for research use only and not for use in humans or clinical applications.

FAQ

1. What is the Sleeping Beauty (SB) transposon system?
1. What is the Sleeping Beauty (SB) transposon system?
2. How does SB differ from lentiviral or AAV delivery?
2. How does SB differ from lentiviral or AAV delivery?
3. What is the cargo capacity of the SB transposon?
3. What is the cargo capacity of the SB transposon?
4. Which SB transposase variants do you use (e.g., SB100X vs SB11)?
4. Which SB transposase variants do you use (e.g., SB100X vs SB11)?
5. Can SB integrate into the mammalian genome safely?
5. Can SB integrate into the mammalian genome safely?
6. Does SB require viral packaging or BSL-2 viral workflow?
6. Does SB require viral packaging or BSL-2 viral workflow?
7. Which cell lines are compatible with SB transposition?
7. Which cell lines are compatible with SB transposition?
8. Can SB be used in non-dividing cells?
8. Can SB be used in non-dividing cells?
9. What format do you use for transposase delivery — DNA or mRNA?
9. What format do you use for transposase delivery — DNA or mRNA?
10. Do you offer construct design and cloning?
10. Do you offer construct design and cloning?
11. What selection markers are available?
11. What selection markers are available?
12. Do you offer monoclonal isolation after transposition?
12. Do you offer monoclonal isolation after transposition?
13. What QC do you provide for stable cell lines?
13. What QC do you provide for stable cell lines?
14. What deliverables do I receive at the end of the project?
14. What deliverables do I receive at the end of the project?
15. What is the typical project timeline?
15. What is the typical project timeline?
16. Can SB generate multi-gene or polycistronic stable lines?
16. Can SB generate multi-gene or polycistronic stable lines?
17. Is the integration copy number controllable?
17. Is the integration copy number controllable?
18. Do you guarantee stable, long-term expression?
18. Do you guarantee stable, long-term expression?
19. Are these cell lines suitable for clinical or GMP use?
19. Are these cell lines suitable for clinical or GMP use?
20. Can SB be combined with CRISPR or other genome engineering tools?
20. Can SB be combined with CRISPR or other genome engineering tools?

FAQ

1. What is the Sleeping Beauty (SB) transposon system?
1. What is the Sleeping Beauty (SB) transposon system?
2. How does SB differ from lentiviral or AAV delivery?
2. How does SB differ from lentiviral or AAV delivery?
3. What is the cargo capacity of the SB transposon?
3. What is the cargo capacity of the SB transposon?
4. Which SB transposase variants do you use (e.g., SB100X vs SB11)?
4. Which SB transposase variants do you use (e.g., SB100X vs SB11)?
5. Can SB integrate into the mammalian genome safely?
5. Can SB integrate into the mammalian genome safely?
6. Does SB require viral packaging or BSL-2 viral workflow?
6. Does SB require viral packaging or BSL-2 viral workflow?
7. Which cell lines are compatible with SB transposition?
7. Which cell lines are compatible with SB transposition?
8. Can SB be used in non-dividing cells?
8. Can SB be used in non-dividing cells?
9. What format do you use for transposase delivery — DNA or mRNA?
9. What format do you use for transposase delivery — DNA or mRNA?
10. Do you offer construct design and cloning?
10. Do you offer construct design and cloning?
11. What selection markers are available?
11. What selection markers are available?
12. Do you offer monoclonal isolation after transposition?
12. Do you offer monoclonal isolation after transposition?
13. What QC do you provide for stable cell lines?
13. What QC do you provide for stable cell lines?
14. What deliverables do I receive at the end of the project?
14. What deliverables do I receive at the end of the project?
15. What is the typical project timeline?
15. What is the typical project timeline?
16. Can SB generate multi-gene or polycistronic stable lines?
16. Can SB generate multi-gene or polycistronic stable lines?
17. Is the integration copy number controllable?
17. Is the integration copy number controllable?
18. Do you guarantee stable, long-term expression?
18. Do you guarantee stable, long-term expression?
19. Are these cell lines suitable for clinical or GMP use?
19. Are these cell lines suitable for clinical or GMP use?
20. Can SB be combined with CRISPR or other genome engineering tools?
20. Can SB be combined with CRISPR or other genome engineering tools?

Join Us in Advancing Biotech Solutions Together

Join Us in Advancing Biotech Solutions Together

Join Us in Advancing Biotech Solutions Together

Copyright © 2025 DuneX Biosciences. All rights reserved. | +1-(415).463.0365 | info@dunexbio.com | 25801 Industrial Blvd Suite 100, Hayward, CA 94545

Copyright © 2025 DuneX Biosciences. All rights reserved. | +1-(415).463.0365 | info@dunexbio.com |

25801 Industrial Blvd Suite 100, Hayward, CA 94545

Copyright © 2025 DuneX Biosciences.

All rights reserved.

+1-(415).463.0365 | info@dunexbio.com |

25801 Industrial Blvd Suite 100, Hayward, CA 94545