S100a8 Knockout mouse models
S100a8, the mouse ortholog of human S100A8, encodes MRP8 (calgranulin A), a small EF-hand protein that heterodimerizes obligately with S100A9 to form calprotectin, the dominant cytosolic cargo of neutrophils and inflammatory monocytes. Released calprotectin chelates zinc and manganese to starve bacteria and fungi, engages TLR4 and RAGE to amplify NF-kB driven cytokine output and endothelial activation, and promotes myeloid-derived suppressor cell accumulation in tumors, while intracellularly the complex supports NADPH oxidase assembly and tubulin dynamics. Notably, germline S100a8 disruption has been reported as early embryonic lethal with resorption, whereas S100a9 nulls are viable and lack detectable S100A8 protein because the partner is unstable alone, so conditional or myeloid-restricted deletion is the safer design. Zinc-binding or dimer-interface knockins separate nutritional immunity from receptor signaling. Fit alleles to bacterial clearance, arthritis severity, or calprotectin biomarker endpoints.
Whole body loss of S100a8 gives the clearest readout when the question is whether the gene is required at all. Follow up tissue work can still move to a conditional allele if lethality or compensation appears.
What S100a8 Knockout mouse models are available?
ingenious targeting laboratory offers 1 distinct S100a8 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 |
|---|---|---|---|---|---|
| S100a8-KO | Knockout | KO/CKO mice | sperm cryopreservation | KO 233472 | Inquire |
Why this approach
A conventional knockout answers whether the gene is required broadly. When your target tissue is the organ of interest, a global null can still be informative if viability is acceptable and you want the simplest genotype. If the null is harsh, a floxed allele with a regional Cre is the safer long term platform.
Pricing and quotes
The S100a8 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 S100a8 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 S100a8 Knockout mouse models are available?
When S100a8 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 S100a8 knockout embryonic lethal in mice?
It depends on background and allele design. Some S100a8 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 S100a8 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 S100a8?
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.