Constitutive KO
Constitutive Knockout Mouse Model
A constitutive knockout defines a biological model in which a target gene is permanently disrupted or inactivated in every cell of the target organism. Gene inactivation is achieved at all stages of development, from the 1-cell embryo stage through adulthood.
| + | The generation of a constitutive knockout model is a fast and cost-effective solution for the preliminary study of target gene function in vivo. | |
| - | The constitutive knockout of a target gene may be embryonic lethal and is likely to result in the deregulation or misregulation of the expression of other genes. A conditional knockout (e.g. a tissue specific KO or an inducible deletion of the target gene) or the “Safe KO™ technology” may serve to bypass the difficulties of a constitutive knockout. |
Engineering a constitutive knockout mouse
Custom Knockout Mouse Services at genOway
genOway provides a one-stop solution for the design, creation and analysis of your custom knockout mouse model.
Step 1: Scientific evaluation
genOway has a dedicated team of scientists and bioinformatics experts who are able to perform thorough analyses of your project feasibility including:
- Defining the model's objectives
- Determining the characteristics of the target gene/locus
- Analyzing data culled from the literature
Step 2: Design of genetically modified model
We evaluate the possible gene targeting options based on the results of the above scientific evaluation and present the design to the principal investigator with a clear assessment of model features, risks and timelines.
- Our process guides you toward the best choice for your model design.
- We provide free and non-binding access to this expertise.
Step 3: Production
genOway has an extensive background in genetically modified mouse technology and will provide you with the highest quality product possible. Four mouse knockout production options are available. All options include the same dedicated customer support.
Option 1: Full serviceYour project is managed from initial conception to final realization by our in-house transgenesis experts. This level of service includes:
- Model design, starting from a gene accession number
- Model creation up to validated heterozygous/homozygous animals
- Cohort production
- Phenotyping (i.e. physiological validation of the model along with a comprehensive array of tests)
Option 2: Standard service
genOway manages your project from initial conception (starting from a gene accession number) to the delivery of heterozygous animals.
Option 3: Partial production serviceExit the model creating process at any step of your choosing (such as vector construction or recombined ES cell line creation).
Option 4: Animal production servicegenOway manages your model creation project, starting from existing targeting vectors or ES cell clones. These vectors or clones are either developed in your lab or available via the International KO Mouse Consortium (IKMC – EUCOMM, KOMP, NorCOMM).
| Milestones | Full | Standard | Partial production | Animal production |
|---|---|---|---|---|
| Project evaluation |
Bioinformatics analysis, bibliography search, project feasibility assessment |
Analysis of the selected strategy, risk assessment |
||
|
Model design and targeting vector construction |
x | x | x | |
| Recombined ES cells | x | x | optional | optional |
| Blastocyst injection | x | x | optional | x |
| Heterozygous animals | x | x | x | |
| Homozygous animals | x | optional | optional | |
| Cohort production | x | optional | optional | |
| Phenotyping | x | optional | optional | |
Genetic background
ES cell lines are currently available for the following genetic backgrounds :
C57BL/6, BALB/c, 129Sv, 129Ola
Our ES cell lines have been validated for germline transmission after 2 rounds of electroporation.
Guarantee
Our guarantee comprises:
- Generation of chimeras
- ES cell germline transmission
- Developmental deadlines
- Confidentiality
- Exclusivity of intellectual property
- Breeding under VAF+/SOPF conditions: the health status is issued by professional breeders (such as Charles River)
- Line importation and worldwide delivery of the line using a professional transport network
Benefits of entrusting your model development project to genOway
Expertise
- More than 1000 models generated so far
- Strong consulting activity provided for model design
- Thorough project assessment prior to project start
Quality controlled production
- Robust and validated technologies
- Clear cut guarantees
- No waiting list
Project management and reporting
- A dedicated PhD project manager
- Rigorous and regular reporting
- On-site meetings
Unique IP Positioning
- Access to exclusive licenses for key technologies
- Customer retains all the IP on the model
- No claim, no royalty, no follow-on rights by genOway
