Pcsk9 Knockout mouse models
Pcsk9, ortholog of human PCSK9, encodes a secreted proprotein convertase that abandons catalysis after autoproteolysis: the cleaved prodomain remains lodged in the active site, and the mature protein instead acts as a chaperone, its catalytic domain gripping the EGF-A repeat of the LDL receptor at the hepatocyte surface and rerouting the complex from recycling endosome to lysosome, lowering surface receptor density and raising plasma LDL cholesterol. Human genetics supplies both directions, with gain-of-function alleles such as D374Y causing autosomal dominant hypercholesterolemia and loss-of-function alleles such as Y142X and R46L conferring lifelong protection. Because monoclonal antibodies and siRNA therapeutics recognize human sequence, locus humanization is usually the decisive design for pharmacology, whereas hepatic conditional nulls and D374Y knockins address receptor trafficking and lesion burden. Nulls are viable and hypocholesterolemic, so lethality is no constraint; pair alleles with Ldlr or Apoe backgrounds suited to the atherosclerosis endpoint.
A conventional Pcsk9 knockout removes gene function in all cells that inherit the allele. It is a proven first pass for target validation when redundancy is low.
What Pcsk9 Knockout mouse models are available?
ingenious targeting laboratory offers 2 distinct Pcsk9 knockout catalog mouse models. Researchers can order pre-developed catalog lines or request a custom mouse model, including humanized, knockin, and transgenic variations with verified germline transmission.
Designing a Pcsk9 Knockout allele
A null is fully tolerated and directly mirrors human loss-of-function carriers: circulating protein is absent, hepatic LDL receptor protein rises severalfold, and plasma cholesterol falls by roughly half, so lifelong questions such as atheroprotection, glucose handling, and lipid-soluble vitamin status can be asked without a conditional. One design constraint dominates interpretation: the receptor is the only substrate that matters for lipids, so a Pcsk9 null crossed onto an Ldlr null shows no cholesterol change, and the useful atherosclerosis background is Apoe deficiency or Western diet alone. Delete the promoter with the first coding exon, or the whole locus, so no truncated species retaining receptor affinity is secreted. Read out plasma protein by immunoassay, hepatic surface receptor by membrane-fraction blotting and DiI-LDL uptake, FPLC lipoprotein distribution, and aortic lesion burden in matched littermate cohorts.
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 Pcsk9 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 Pcsk9 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 Pcsk9 Knockout mouse models are available?
When Pcsk9 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 Pcsk9 knockout embryonic lethal in mice?
It depends on background and allele design. Some Pcsk9 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 Pcsk9 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 Pcsk9?
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.