Date published: 2026-5-16

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Cre Recombinase Activators

Cre recombinase activators belong to a specialized category of chemical compounds that are involved in the modulation of the Cre recombinase enzyme, a crucial tool in molecular biology and genetic engineering. Cre recombinase is from the bacteriophage P1 and is widely used in experimental settings to catalyze site-specific recombination between DNA sequences known as loxP sites. When activated by specific compounds, Cre recombinase can efficiently recognize and bind to these loxP sites, leading to the excision, inversion, or translocation of DNA segments flanked by these recognition sequences.

The activation of Cre recombinase by its activators is a fundamental process in genetic manipulation and allows researchers to precisely control the spatial and temporal regulation of gene expression in various organisms. By fine-tuning the activity of Cre recombinase, these activators can influence the efficiency and specificity of DNA recombination events, enabling the creation of genetically modified organisms or cells with a high degree of precision. Understanding the chemical properties and mechanisms underlying Cre recombinase activation is crucial for advancing the field of molecular biology and genetic engineering, as it allows researchers to develop innovative strategies for studying gene function, tracing cellular lineages, and generating animal models with specific genetic modifications. Research in this area contributes to our broader understanding of gene regulation and genetic diversity, facilitating advancements in various scientific disciplines.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Tetracycline

60-54-8sc-205858
sc-205858A
sc-205858B
sc-205858C
sc-205858D
10 g
25 g
100 g
500 g
1 kg
$63.00
$94.00
$270.00
$417.00
$634.00
6
(1)

Tetracycline can induce Cre recombinase expression in systems using a tetracycline-responsive promoter. It binds to and activates the tetracycline-controlled transactivator, which then promotes transcription of genes, including Cre.

Doxycycline-d6

564-25-0 unlabeledsc-218274
1 mg
$16500.00
(0)

Similar to tetracycline, doxycycline can activate a tetracycline-responsive promoter. It's often used due to its more stable and effective profile in inducing gene expression.

Tamoxifen

10540-29-1sc-208414
2.5 g
$272.00
18
(2)

Tamoxifen induces Cre recombinase expression in systems where Cre is fused to a modified estrogen receptor. The compound binds to this receptor, allowing Cre to translocate to the nucleus and become active.

Mifepristone

84371-65-3sc-203134
100 mg
$61.00
17
(1)

Mifepristone can activate promoters that are responsive to glucocorticoids or progestins. When Cre is placed under such promoters, mifepristone can induce its expression.

Dexamethasone

50-02-2sc-29059
sc-29059B
sc-29059A
100 mg
1 g
5 g
$91.00
$139.00
$374.00
36
(1)

Dexamethasone is a glucocorticoid that can induce Cre recombinase expression when Cre is under the control of glucocorticoid-responsive promoters.

IPTG, Dioxane-Free

367-93-1sc-202185
sc-202185A
sc-202185B
sc-202185C
sc-202185D
sc-202185E
sc-202185F
1 g
5 g
100 g
500 g
1 kg
10 kg
25 kg
$51.00
$117.00
$510.00
$1785.00
$2240.00
$16646.00
$32773.00
27
(1)

IPTG induces Cre recombinase expression in systems using a lac operon-based promoter. It binds to and inactivates the lac repressor, allowing transcription of the Cre gene.

(Z)-4-Hydroxytamoxifen

68047-06-3sc-3542C
sc-3542
sc-3542B
sc-3542A
sc-3542D
sc-3542E
1 mg
5 mg
10 mg
25 mg
50 mg
100 mg
$220.00
$281.00
$408.00
$718.00
$1377.00
$2397.00
20
(2)

(Z)-4-Hydroxytamoxifen is an active metabolite of tamoxifen and functions similarly by binding to estrogen receptor-based fusion proteins to induce Cre expression.

Acyclovir

59277-89-3sc-202906
sc-202906A
50 mg
500 mg
$150.00
$940.00
2
(2)

Acyclovir can be used to induce Cre recombinase expression in systems where the promoter is responsive to nucleoside analogs.

Gibberellic acid

77-06-5sc-257556
sc-257556A
sc-257556B
sc-257556C
500 mg
1 g
5 g
25 g
$47.00
$63.00
$145.00
$515.00
2
(0)

In plant systems, gibberellic acid can induce Cre recombinase expression when Cre is under the control of a gibberellin-responsive promoter.

3-Indoleacetic acid

87-51-4sc-254494
sc-254494A
sc-254494B
5 g
25 g
100 g
$31.00
$92.00
$160.00
4
(1)

This is a plant hormone that can induce the expression of Cre recombinase in systems using an auxin-responsive promoter in plants.