[Xenopus] Nasco closing

National Xenopus Resource xenopus at mbl.edu
Mon Feb 8 13:53:09 EST 2021

Dear Xenopus community
            Nasco has informed us that they will be closing down their live animal sales as of March 31, 2021. They still have frogs for sale and you can contact them to place an order and they are willing to work with you on the ship date. They do not know yet whether they will continue selling their frog brittle. After March 31 there will be two options for purchase of wild type Xenopus frogs:
Xenopus 1 (http://www.xenopus1.com/Xenopus1/HOME.html)
Xenopus Express (https://www.xenopus.com/)
            Xenopus 1 does ship internationally. I have spoken with both those companies and they are excited to work with any new customers and have said they have capacity to cover the additional animals when Nasco closes.  Please reach out to each company to ask about their frogs and their availability. Xenopus 1 has wild caught and lab bred frogs, while Xenopus Express has lab bred frogs. Both companies also sell food pellets for Xenopus.

            The NXR stocks mainly transgenic and inbred and mutant frogs, but we do have some wild type frogs. Likewise, the EXRC has some wild type frogs for sale, but we do not have the capacity to meet all demand. Moving forward, I would be glad to hear from people about how this might impact their use of Xenopus and whether they have concerns about this. The EXRC and NXR are looking into whether there is a need for further expansion if there are issues with obtaining frogs in the near future. But we really won’t know unless the community informs us. We ask you all to let me and Matt Guille know of your concerns with this new development. Matt and I will work closely together to ensure that this does not have a significant impact on the Xenopus community.

Marko Horb

Marko Horb, Ph.D. |Director, National Xenopus Resource (NXR) |Senior Scientist, Bell Center for Regenerative Biology and Tissue Engineering
Marine Biological Laboratory | 7 MBL Street | Woods Hole, MA 02543
Email: mhorb at mbl.edu<mailto:mhorb at mbl.edu> | Office: 508-289-7627 | Lab: 508-289-7370 | Cell:  508-564-3764


If the NXR contributed to your work please acknowledge us in your publications and talks.
Cite us in Materials and Methods as National Xenopus Resource RRID:SCR_013731 at the Marine Biological Laboratory and in the Acknowledgements you can just mention the National Xenopus Resource.
Cite us in your references: Horb M. et. al. (2019). Xenopus resources: transgenic, inbred and mutant animals, training opportunities, and web-based support. Front Physiol. 10:387. PMCID: PMC6497014

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