Chek1 Conditional Knockout mouse models
Chek1, the mouse ortholog of human CHEK1, encodes CHK1, the effector kinase of the replication checkpoint, recruited to chromatin through CLASPIN and activated by ATR phosphorylation at serines 317 and 345, after which it phosphorylates CDC25A to trigger its degradation, inhibits CDK2 driven origin firing, restrains CDC45 loading, stabilizes stalled forks and enforces the G2/M transition through CDC25C and WEE1. Loss is cell lethal because unrestrained origin firing exhausts nucleotide and RPA pools, and homozygous null embryos die at the blastocyst stage, while heterozygotes show genuine haploinsufficiency with checkpoint defects, so this is a gene where conditional floxed alleles and inducible Cre are not optional. Acute deletion in adult intestine or hematopoietic compartments reproduces the on-target toxicity that limits CHK1 inhibitors clinically, making it the right platform for therapeutic window studies. Chek2 does not substitute, since it operates downstream of ATM on double strand breaks. Reserve hypomorphic alleles for chronic replication stress and conditional nulls for acute dependency work.
Conditional deletion of Chek1 limits the genetic change to the lineage you choose. That helps in oncology, immunology, and metabolic work where systemic loss would muddy the read. After you confirm Cre specificity, crossing to Chek1 floxed stock yields usable cohorts.
What Chek1 Conditional Knockout mouse models are available?
ingenious targeting laboratory offers 1 distinct Chek1 conditional knockout catalog mouse model. Researchers can order pre-developed catalog lines or request a custom mouse model, including humanized, knockin, and transgenic variations with verified germline transmission.
Catalog table
| Model | Type | Category | Availability | Catalog # | Action |
|---|---|---|---|---|---|
| Chek1-Flox | Conditional Knockout | KO/CKO mice | embryo cryopreservation | CKO 200248 | Inquire |
Why this approach
Conditional knockout focuses the experiment on your target tissue while the rest of the animal keeps a wild type allele. That pattern mirrors somatic mutation in patients and avoids systemic compensation that can erase subtle phenotypes. It is often preferred when a germline null is lethal, weak, or confounded by developmental rescue.
Pricing and quotes
The Chek1 Conditional Knockout lines listed above are catalog models. Send us the catalog number and our team confirms current availability, pricing, and whether the line ships cryopreserved or live.
If your study needs a Chek1 allele configuration that is not listed above, our scientific team designs and generates it. Model generation quotes return in about twenty four hours with project milestones and pricing.
FAQ
What Chek1 Conditional Knockout mouse models are available?
When Chek1 Conditional Knockout lines are in catalog, we ship from inventory. If your configuration is not listed, we design the allele to order. Common paths include conditional knockout, constitutive knockout, humanized, knockin, and transgenic options, with documented germline transmission and United States QC.
Is Chek1 knockout embryonic lethal in mice?
It depends on background and allele design. Some Chek1 germline knockouts are viable. Others need conditional alleles or mixed backgrounds. We review publications and our own experience, then recommend floxed versus null before you commit.
Which Cre driver is best for experiments?
Driver choice depends on onset timing, recombination efficiency, and known leak. We map your organ and cell type to a short list of proven Cre lines, then talk through reporter crosses and controls. We favor drivers with strong community validation for your tissue.
Do you ship live Chek1 animals?
When catalog lines are live, we ship with health certificates and QC documentation. If your exact combo is not listed, we quote a generation project with cryo or live dispatch depending on cohort timing and geography.
How do I request a quote for Chek1?
Use the catalog inquire buttons or the request quote form. Include your allele goal, Cre plan if any, strain background, and cohort size. A PhD led team responds with pricing, milestones, and the fastest path to experimental animals.