Our new PiggyBac transgenic rat service can deliver single-copy transgenic rats with more consistent expression of your transgene. This proprietary transgenic method has the following advantages over other transgenic approaches:
(1) Integration occurs as a single copy at each integration site. By contrast, in conventional transgenics, there are typically multiple copies integrated in tandem at each integration site. The presence of multiple copies can interfere with the expression of the transgene, and may even induce silencing.
(2) The integrated fragment is defined, namely only your desired transgene sequence is integrated. No vector backbone sequence is integrated, nor is there any loss of your transgene sequence. By contrast, in conventional transgenics, the transgene may integrate along with extra vector backbone sequence, or the transgene sequence may be partially eroded.
Each full PiggyBac transgenic rat project is divided into the following phases:
1. PiggyBac transgenic strategy design
2. PiggyBac transgenic vector construction
3. PiggyBac transgenic pronuclear injection
4. PiggyBac transgenic rat screening
Preparation of DNA for injection and development of a genotyping strategy
The success of PiggyBac transgenic production depends critically on the design and the quality of PiggyBac vector used in pronuclear injection. Accordingly, we employ a special protocol to design and prepare top-quality PiggyBac vectors for our injections. A PCR-based genotyping strategy will be developed and tested.
Generation of PiggyBac transgenic founder rats
-PiggyBac plasmid injection to obtain founders, basic service: A minimum of 400 eggs (SD and Long Evans) will be injected to produce live animals. This will result in an average of 3-4 transgenic founders, but the actual numbers could fluctuate significantly, and it is possible that no founders are obtained. If you wish to ensure the generation of founders, we strongly recommend that you use our guaranteed service option (see below).
-PiggyBac plasmid injection to obtain founders, guaranteed service: We guarantee a minimum of 3 PiggyBac transgenic founders (the actual number of founders obtained is typically higher).
-Genotyping pups to identify founders: Pups will be genotyped by PCR to identify PiggyBac transgenic founder rats following the strategy designed by Cyagen scientists.
We typically produce transgenic rats on SD and Long Evans strain backgrounds, but we may be able to offer other strains to accommodate your special research needs.
|Service||Donor egg strain||Price||Turnaround time|
PiggyBac transgenic strategy design
|Transgenic vector construction
|Please inquire||2-5 weeks|
|Prepare PiggyBac DNA for injection and develop genotyping strategy||$600||1-2 weeks|
|PiggyBac plasmid injection to obtain founders, basic service||SD||$11,950||9-11 weeks|
|Long Evans||$12,950||13-15 weeks|
|PiggyBac plasmid injection to obtain founders, guaranteed service||SD||$17,950||9-16 weeks|
|Long Evans||$18,950||13-20 weeks|
|Genotyping pups to identify PiggyBac transgenic founders||$450||1 week|
Cyagen offers the best guarantee in the industry – we will fully refund the client’s service fee if animals with the specified genotype are not generated (except for genetic modifications severely affecting viability, morbidity, or fertility). Given the complexity of biological systems, a particular genetic modification may not result in the desired phenotype. As such, Cyagen's guarantee covers the creation of animals with the specified genotype, not a particular phenotypic outcome in terms of transcription, protein/RNA function, or organismal biology.
If you find another commercial service provider that offers better pricing than ours, we will match the price plus an additional 5% off.
Standard payment terms include a 50% upfront payment before the project, and the remaining 50% plus shipping charge paid after completion of the project. If you need us to design your transgenic strategy, we will provide this service for free irrespective of whether you end up choosing us for your project.
We offer up to a 10% bulk discount for large orders. Large orders are defined as 5 or more projects from the same institution. If you bundle your orders with those of your colleagues, you can all qualify for the bulk discount.
Products are shipped from our Santa Clara, California facility. For rat shipments, the shipping charge includes courier cost plus a $100/crate handling fee. DNA constructs or fixed/stained embryos are shipped at room temperature, and the charge includes courier cost plus a $10 handling fee. We typically use World Courier to ship live rats and FedEx for other shipments.
All animal work is conducted in our specific pathogen free (SPF) facilities that have been AAALAC accredited and OLAW assured. For details information, please visit our support section for Description of our Facility, Animal Health and Animal Welfare Program.
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