Ozgene – Custom mouse model FAQ

  • Request a free quote.
  • Ozgene offers customised mouse model generation where the pricing is determined by the complexity of the project, the materials provided by the customer and the desired deliverables.
  • We will provide an obligation free project design and proposal based on your specific requirements free of charge.
  • Ozgene’s current average time for new mouse model completion is 29 weeks.
  • Our fastest gene targeted mouse models have been generated in 20 weeks from project design to heterozygous targeted F1 mice.
  • Please see our timelines for more information.

Ozgene is continuously improving project timelines by stabilising, standardising and refining each individual process using Lean management. Our proprietary goGermline™ technology is one of these process refinements, enabling us to generate your mice with the fastest, most efficient timelines possible, while significantly improving animal welfare.

  • We have no project queues.
  • Ozgene’s highly efficient project pipeline allows us to start projects without lengthy waiting periods.
  • Your project will start as soon as Ozgene receives a signed contract and a purchase order.
  • Get starting by requesting a free quote!
  • Ozgene generates mouse models via gene targeting in ES cells using our proprietary goGermline™ technology, which vastly improves the 3R efficiencies and the timeline for development of gene targeted mouse models.
  • We also use various technologies to validate and phenotype your mouse lines e.g. RT-qPCR, Western Blot, ELISA and flow cytometry.
  • Ozgene also offers a service called OzBIG for robust creation of large, gene-targeted replacement models. This system enables routine generation of mouse models with very large (20 to 240 kb) genomic replacements.

Ozgene does not currently apply CRISPR-based genome editing for the following factors:


  • First experimental cohorts can be generated faster with goGermline™ gene targeting than with CRISPR.


  • Mosaicism of the founder animals is expected with CRISPR and requires specific genotyping and breeding strategies of founders and/or their offspring to select animals that harbour the desired alleles.


  • CRISPR methodology introduces the risk of CRISPR-mediated off-target effects could lead to unpredictable phenotypes and research results.
  • Gene targeting methodology, in contrast, does not introduce the risk of off target effects.


  • With CRISPR a large number of founder mice is usually required, compromising 3Rs.


  • CRISPR-based mouse models always require generation and characterisation of multiple individual F1 offspring to determine if the desired genomic modification has been established or not – resulting in a significant percentage of project restarts.
  • Genetic modification by gene targeting in ES cells, on the other hand, ensures the correct modification at each progressive step of the process – resulting in no project restarts.

Ozgene offers a full spectrum of breeding options to:

  • Breed your Ozgene-generated genetically engineered mouse line
  • Import and breed an existing mouse line
  • Expand a colony to provide breeding cohorts or experimental cohorts
  • Cross-breed to other lines: Flp, Cre and others
  • Breed your mice at Ozgene Australia or Ozgene USA

Ozgene offers gene targeting on the following backgrounds:

  • C57BL/6J
  • C57BL/6N
  • BALB/c
  • FVB/n
  • NOD
  • Less common strains as required

Yes – although we prefer to provide a full service from project design to heterozygous targeted F1 mice, so that we can apply our QC throughout the project and ensure targeting in ES cells and germline transmission in mice.

In our experience, we find it can be challenging to assist you with any potential issues with partial materials if we do not have control over the procedures in your laboratory and Vivarium.

If a full mouse model generation service is not an option for you, we can offer the following partial services:

  • Generation of a gene targeting vector
  • Generation of a targeted ES cells from an Ozgene vector or customer vector
  • Generation of a gene targeted mouse line from customer or repository ES cells using goGermline™
  • Breeding of experimental cohorts from Ozgene or other mouse models
  • Validation and phenotyping of Ozgene or other mouse models

Ozgene’s off-the-shelf models are currently limited to those being used in-house:

  • OzFlp – ubiquitously expressing Flp line
  • OzCre – ubiquitously expressing Cre line
  • OzCreERT2 – tamoxifen inducible Cre line

We generate genetically engineered humanised models where the human gene replaces the mouse gene, for example

  • humanising point mutations,
  • humanising domains, such as extracellular domains,
  • humanising the entire gene,
  • humanising multi-gene loci.

We recommend the OzBIG technology for large genomic humanisations (20-240 kb).

No, it does not.

  • goGermline embryos are engineered to be spermatogenesis deficient. Therefore, all fertile male chimeras are germline heterozygous and exclusively transmit the ES cell genome. There is no offspring from the host embryo.
  • The modification in the goGermline host embryos is cellularly and genetically separate from the cells and genetics of the F1 offspring.
  • Ozgene offers strictly fee for service.
  • For customised mouse model projects your intellectual property (IP) and materials generated for your project belong to you.
  • Ozgene does not have ownership over any client IP, targeting vectors, ES cells or mouse models, and will not resell any project materials or mouse lines to third parties. 
  • This also means that you do not need Ozgene licencing to use your mouse model.

Ozgene ARC – Stock strain FAQ

  • To view a step-by-step tutorial –> click here
  • View Ozgene ARC Price List here.
  • Not to worry, email us at arc@ozgene.com.
  • We will delete your attempted registration so that you can start over.
  • Credit card is the preferred payment method.
  • If you are unable to pay by credit card, you can also request to activate the PO option by emailing arc@ozgene.com. After activation, the portal will require you to upload a PDF of the PO when you submit your order.
  • Each registration requires an email address and mobile number.
  • A code sent to the mobile phone is used for authentication at login.
  • For now, the easiest option is to have a single person login and place the orders.
  • We are investigating other authentication methods to allow multiple users to log into the same account.
  • To view our terms & conditions –> click here
  • See “8.5 Order Cancellation and Amendments”
  • When you place your order, our system will calculate the shipping costs based on your location and the number of required shippers and compartments.
  • Please note that males from different litters or different original cages will need to be separated, which often means that sending males requires more shippers than females. This is to improve animal welfare, minimise stress and reduce fighting during transit.
  • To reduce the shipping cost per animal, you may include additional animals of a different strain, age or sex in the same order. Just remember to select the same shipping address and date.
  • The portal will display the final shipping cost at checkout.
  • Ozgene ARC is a newly created entity.
  • Accounts from the ARC will not automatically transfer to Ozgene ARC.
  • Please create a new account on the ordering portal.
  • If your purchasing department needs to set Ozgene ARC up as a new vendor, please email arc_accounting@ozgene.com with the required documentation.
  • Currently you are only able to order animals that have been weaned.
  • Mice are weaned at ~22 days to determine their sex.
  • The youngest mice you can order are 3-4 weeks.
  • There is a 1-week ordering window for 4-week-old mice, 2-week ordering window for 5-week-old mice, and so on.
  • The oldest mice available on the portal are 12 weeks, and they can be ordered up to 9 weeks in advance.
  • We are working on functionality to enable you to place orders earlier by accessing estimated mouse numbers prior to weaning.
  • SMS verification serves as a Multi-Factor Authentication (MFA) on the ordering portal and can’t be inactivated.
  • MFA adds an extra layer of security to prevent unauthorised access to your account.
  • We are investigating other MFA options to allow group accounts on the ordering portal.
  • Our ordering portal updates at 12 pm and 4 pm AWST each day, displaying the newly weaned animals that have become available. We hope that being aware of these times will minimise the need to check the portal several times a day for available animals. Once our stock levels are sufficient, we will transition the portal to update in real-time as weaning is carried out in our Vivarium.
  • You can request a deviated septum check for female mice using a dropdown field while placing your order on the portal. For any other requests, kindly email arc@ozgene.com and provide your order number as reference. Please avoid entering requests in the “Researcher/PI” or “Customer Reference Number” fields, as these are exclusively used for invoicing and shipping label information. Please be aware that although we will make efforts to fulfil your request, there might be certain limitations to what we can accommodate.
  • Information is available on our website for the strains transferred from the ARC. Please refer to our ordering portal for the current availability of each strain.
  • Ozgene ARC will postpone animal air shipments if ground temperatures seriously risk animal welfare and will strive to promptly alert impacted customers. At 9:00 AM Perth time, if the predicted 9:00 PM Perth Airport temperature is greater than or equal to 29 °C, then interstate shipments will be dispatched the next suitable day.
  • Likewise, if the predicted temperature at 9:00 AM at the destination or connecting airport is greater than or equal to 29 °C, then shipments will be postponed to a given airport or destination until the next suitable day.
  • Ozgene ARC uses http://weather.com and https://www.bom.gov.au/ to check weather forecasts. If customers are concerned about high temperatures, they can request a delay in delivery on the day of despatch if Ozgene ARC is informed before 9.00 a.m. AWST.
  • We kindly ask customers keep the above in mind regarding time sensitive orders (e.g., time mated animals) and suggest such orders are received in advance, where possible.
  • See full shipper and transport guidelines here