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Transgenic Mouse Core

Transgenic Mouse Core Facility

The Transgenic Mouse  Core Facility (TMCF) is committed to providing customized, flexible, and comprehensive services to UTMB investigators utilizing genetically engineered mouse models.  Its services include: generation of transgenic mice, gene targeting, cryopreservation of mouse embryos and sperm, rederivation, breeding, and genotyping.  It can also offer consultations and assistance with grant/animal protocol writing.  The TMCF is located on the ground floor of the Medical Research Building, inside the Animal Resource Center. 


To provide comprehensive and flexible support to investigators engaging in genetically engineered mouse model research, and to facilitate the growth of the mouse research and translational research at UTMB.


Generation of Transgenic Mice

Generation of transgenic mice by microinjection of DNA into the pronucleus of a fertilized mouse oocyte

Gene Targeting

Genetic engineering of mouse embryonic stem cells, and microinjection of the cells into pre-implantation-stage mouse embryos.

Cryopreservation Services

A. Cryopreservation of Mouse Embryos
For each day of cryopreservation requested, we will isolate and cryopreserve 8-cell embryos from as many as fifteen super-ovulated female mice using the slow-cooling method.
B. Cryopreservation of Mouse Sperm
We will cryopreserve sperm from two male mice using the Jackson Lab Sperm Cryopreservation Kit. This service includes an assessment for the ability of cryopreserved sperm to fertilize oocytes when thawed, and three-year storage of the sperm in multiple freezers located at the Jackson Lab (Maine and California). Live mice can be recovered by in vitro fertilization and shipped to the UTMB directly from the Jackson Lab. An additional fee will be applied for this service.

C. Recovery of Cryopreserved Embryos

To recover live mice from cryopreserved embryos, we will perform embryo transfers of thawed embryos into foster mothers.

Rederivation of Mouse Stocks

TransGenLabWe can generate specific-pathogen-free mice by embryo transfer from mice that have been infected with viruses or other pathogenic agents.  In order to acquire mice from non-commercial vendors, the Animal Resources Center (ARC) may require quarantine or rederivation.  We will super-ovulate multiple females and then isolate the embryos from these females using sterile techniques. We will then transfer these embryos into clean foster mothers.  Subsequently, the ARC will quarantine and test the foster mothers and their offspring to verify that they are specific-pathogen-free.

Other Services

If you have other needs in conducting mouse research, please contact us. We will try our best to find a way to assist you.


Pronuclear injection, standard strain (B6SJLF2)$4,000
Pronuclear injection, non-standard strains$5,200
Electroporation of ES cells$5,400
Blastocyst injection$4,200
Embryo cryopreservation/session$450
Embryo cryopreservation/2 sessions$800
Sperm cryopreservation$1,000
Rederivation/embryo collection-transfer$675
For other services, please ask for a quote.  Fees are subject to change without notice.

Contact us

Director: Maki Wakamiya, PhD
Transgenic Mouse Core Facility
Institute for Translational Sciences
Animal Resource Center
University of Texas Medical Branch
301 University Blvd.
Galveston, TX 77555-0621
Ph 409-747-2365


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