Conventional / global / constitutive KO
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Browse 2 Cd28 mouse models including humanized, knockout variants from ingenious targeting laboratory. Available as Cd28 humanized mouse, Cd28 knockout mouse. Contact us for availability and fast turnaround.
Mouse Cd28, ortholog of human CD28, encodes the dominant costimulatory receptor of naive T cells and forms a disulfide-linked homodimer whose single IgV domain uses the MYPPPY motif to bind CD80 and CD86. Ligation clusters CD28 in the immunological synapse where its cytoplasmic YMNM motif recruits PI3K p85 and GRB2 while a proline-rich PYAP motif binds LCK and ITK, amplifying PLCgamma1, NF-kappaB, and NFAT signaling to drive IL-2 transcription, BCL2L1 induction, glucose uptake, and clonal expansion, and to sustain regulatory T cell homeostasis. Nulls are viable with impaired T-dependent antibody responses, reduced germinal centers, and Treg deficits. CTLA4 competes for the same ligands but antagonizes rather than substitutes, so no true redundancy exists. Humanized CD28 knockins are essential for CD28 bispecific and superagonist safety work given the TGN1412 precedent, while conditional alleles with Cd4-Cre or Foxp3-Cre separate conventional from regulatory T cell requirements.
ingenious targeting laboratory offers 2 distinct Cd28 (CD28) catalog mouse models, featuring conditional knockout, standard knockout, and humanized. Researchers can order pre-developed catalog lines or request a custom mouse model, including humanized, knockin, and transgenic variations with verified germline transmission.
| Model Availability | Allele Class Options |
|---|---|
| 2 Ready Catalog Lines | Conditional Knockout (cKO) |
| Custom Model Generation | Constitutive Knockout (KO) |
| Advanced Modifications | Humanized, Knockin, Transgenic |
Knockout
Conditional knockout
Knockin
Humanized
Transgenic / overexpression
Prefer the order form? Order. Need an allele that is not listed? Request a quote.
Knockout, conditional, knockin, humanized, and related paths for Cd28 (human CD28). Catalog lines ship when inventory exists. Everything else is a generation quote.
Specify tissue or Cre driver on quote
Convertible floxed allele pathway
Multi allele / compound knockout project
BAC scale deletion or targeting
LSL or conditional expression knockin
Domain or partial humanization scope
Checkpoint IO humanization when gene is a checkpoint target
Multi humanized / combination IO project
BAC transgenic or large fragment insert
Tamoxifen or dox inducible Cre
Dual recombinase breeding scheme
Flp or FRT derivative allele pairing
Catalog reporter lines not tied to a single gene allele
Specify rat on quote
Specify rabbit on quote
Background substrain on quote
Background strain on quote
2 Cd28 lines with QC documentation and technical support. Cd28 humanized models carry the human gene sequence for translational research.
We have 2 Cd28 models available — including Humanized, Knockout types. Contact us today for current availability and our fastest turnaround options. All models come with full QC documentation and technical support.
Best pricing in the industry. Get a quote in 24 hours. Our team of PhD scientists is available to help you select the right model for your research.
Order catalog modelA Cd28 knockout mouse has the Cd28 gene permanently inactivated, enabling loss of function studies. A Cd28 humanized mouse replaces the mouse Cd28 gene with the human ortholog for translational research and drug development.
Jump to catalog backed pages for Cd28 organized by modification type. Each URL is indexable and matches common search patterns.
When Cd28 Humanized 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.
It depends on background and allele design. Some Cd28 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.
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.
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.
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.
Send the Cd28 line to a U.S. barrier facility for colony maintenance, cohort production, and complex breeding schemes through mouse breeding services.