
Explore GemPharmatech's most popular and frequently requested knockout and floxed mouse strains, selected for their relevance to biomedical research and potential applications in preclinical studies.
The Knockout All Project (KOAP) aims to develop knockout (KO) and conditional knockout (cKO) mouse strains targeting all approximately 23,000 protein-coding genes in the mouse genome. With more than 22,000 KO/cKO mouse strains available, GemPharmatech provides researchers with a broad selection of genetic models for diverse research areas, including oncology, immunology and autoimmunity, metabolic diseases, and neurodegeneration.
What’s the difference between a knockout and a conditional knockout mouse?
A knockout (KO) mouse is engineered so that a specific gene is permanently inactivated (“knocked out”) in every cell of the body. This makes it possible to study what happens when that gene is completely absent—for example, identifying its role in disease development or normal physiology. A conditional knockout (cKO) mouse provides more flexibility: the gene can be deactivated only in certain tissues (e.g., brain, liver, immune cells) or at specific times in development. This avoids potential embryonic lethality or systemic side effects and allows researchers to isolate the role of a gene in one organ system or stage of life.
How quickly can I get a custom KO or cKO model?
Standard turnaround is 3 to 6 months. The exact timeline depends on factors like gene size, strategy design, and whether preliminary resources (such as embryonic stem cells or CRISPR-ready constructs) already exist. For some high-priority genes, existing cryopreserved strains can be recovered faster. Projects involving complex edits (like multiple floxed sites or tissue-specific promoters) may take longer, but our team provides detailed project timelines up front.
How do I order a knockout or conditional knockout mouse?
You can begin by searching our strain catalog or contacting us directly with your gene of interest. Use the inquiry form at the bottom of this page to provide details such as strain number, background, and desired format (live, cryopreserved, or sperm). Our scientific and sales teams will confirm availability, delivery timelines, and any additional options for customization. For genes not yet available, we’ll walk you through the custom model generation process.
Do you provide supporting services beyond model generation?
Yes. GemPharmatech offers a full service platform designed to support researchers from early discovery through preclinical testing. This includes: • Phenotyping to characterize the effects of gene knockouts • Drug efficacy testing in KO and cKO models • In vitro assays and pathology analysis • Custom breeding and colony management • Microbiome and germ-free services when needed This integration reduces the need to coordinate multiple vendors and keeps your research moving efficiently.
What research areas are knockout and conditional knockout mice used in?
KO and cKO models are widely used across many fields of biomedical research. Examples include: • Oncology: tumor suppressor gene knockouts to model cancer initiation and drug resistance • Immunology & Autoimmunity: cKO models that reveal immune cell-specific gene functions • Metabolic Disease: studying genes linked to obesity, diabetes, and lipid metabolism • Neuroscience: KO models that mimic Alzheimer’s, Parkinson’s, or ALS • Cardiovascular Research: models of atherosclerosis, hypertension, and cardiomyopathy • Drug Discovery & Target Validation: confirming whether disabling a gene is therapeutic before advancing to clinical trials
What formats are available for delivery?
Most strains are available as live mice, cryopreserved embryos, or sperm. Cryopreserved options allow for cost-efficient storage and later recovery. For active projects, live deliveries in specific ages or sexes can be arranged. Our team will confirm the options available for your chosen strain during the ordering process.
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