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Cre reporter HEK293 Cell Line

Catalog# Unit Unit Price (USD) Actions
CRE01 1 million cells/vial $2,835.00 Add to Cart

ALSTEM offers Cre Recombinase Reporter HEK293 Cell Line (CRE01). This cell line is generated from HEK293 cells by transducing a lentivirus that carries a human DNA fragment in which two loxP sites in the same direction are included. When Cre recombinase is present, the genomic DNA flanked by loxP sites is deleted, resulting in a larger DNA fragment amplified by PCR than the wild-type DNA.

  • Ideal for detecting Cre recombinase activity

The Cre/LoxP recombination system is a versatile and powerful tool for DNA manipulations such as deletions, insertions, translocations, and inversions at specific sites in the DNA of cells.  The system uses Cre recombinase to recombines a pair of Lox sites.  Depending on the direction and distance of the LoxP sites, DNA flanked by the LoxP sites can be deleted, inversed, or translocated.

Cre Recombinase Reporter HEK293 Cell Line was derived from HEK293 cells by transducing a lentivirus that carries a human genomic DNA fragment that contains an insertion with two loxP sites in the same direction (Figure 1A). This cell line will be very useful as a sensitive reporter for detecting Cre recombinase activity. When cells were transfected with a Cre expression plasmid (pLenti-EF1-Cre-GFP-PGK-PURO, Cat. Number: CRE02), the insertion was deleted in the stable cell line, but not in non-transgenic cells or wild type cells (Figure 1 B-C, Figure 2).

Figure 1. Cre Reporter Stable Cell Line Panel A) Before addition of Cre recombinase. The stable cell line carries the transgene that contains a human genomic DNA with an insertion flanked by loxP sites. Panel B). After addition of the Cre recombinase, the insertion is deleted. This event is detected by PCA amplification of a 206 bp fragment. Panel C) The Same PCR amplifies a shorter (172 bp) fragment in the non-transgenic and wild type DNA.
Figure 2. Cre activity detection in Cre reporter cell line. Panel A) GFP fluorescence. HEK293 cells were transfected with a Cre-GFP plasmid at 80% cell confluency and express Cre-GFP as green signals. Panel B) PCR results. Cre reporter cell line shows efficient DNA deletion as revealed by a larger PCR fragment that contains a loxP site in addition to the human genomic DNA. Positive control template: Cre reporter plasmid. Expected bands: DNA removal = 206 bp, Wild type DNA = 172 bp.
Product Name Cre reporter HEK293 Cell Line
Shipping Condition

Dry Ice - Overnight Shipping

Storage and Stability

Store in vapor phase of liquid nitrogen immediately upon receipt. This product is stable for 6 months when stored as directed

Quality Control

Each vial contains approximately 1x10^6 cells with >95% viability before freezing.  Each lot of cells are tested for Cre activity, growth, and viability following recovery from cryopreservation, and free of mycoplasma and competent lentivirus as well.

Restricted Use

For Research Use Only. Not for use in diagnostic or therapeutic procedures.