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Vectors, ES Cells & Delivery

Single-Copy Integration

The precise insertion of a single copy of a DNA construct into a defined location within the genome. This approach prevents the variability, gene silencing, and expression artifacts associated with random multi-copy insertions.

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Overview

Single-copy integration refers to the precise insertion of a single copy of a DNA construct into a defined location within the genome. This approach prevents the variability, gene silencing, and expression artifacts often associated with random multi-copy insertions.

Frequently Asked Questions

How is single-copy integration achieved?

Through targeted genome editing—most commonly homologous recombination, HDR, or recombinase-mediated cassette exchange (RMCE)—to insert one construct into a defined locus.

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Related Terms

Safe Harbor Locus

A defined region of the genome where a transgene or targeted DNA sequence can be inserted without disrupting endogenous genes or regulatory networks. Integration at a safe harbor site allows stable, predictable expression.

Rosa26 Locus

A well-characterized safe harbor site in the mouse genome, located on chromosome 6. It supports stable and ubiquitous expression of inserted genes without interfering with nearby genomic functions and is the standard integration site for transgenic constructs.

Safe-Harbor Targeted Transgenesis

A precise genome engineering strategy in which a transgene is inserted into a well-characterized, transcriptionally active, and non-disruptive genomic locus to ensure predictable and stable expression.

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