Dhrs4 - Model 10064 - KO

• The targeting vector has been generated using C57BL/6J DNA and transfected into TaconicArtemis C57BL/6NTac ES cell line.
• Exon 1 contains the translation initiation codon.
• Exon 2 has been flanked by loxP sites (size of loxP-flanked region: 1.4 kb).
• The constitutive KO allele has been generated after Cre-mediated recombination by crossing chimeras to a Cre-Deleter on a C57BL/6 background.
• The constitutive KO line has been derived using C57BL/6NTac animals and the Cre-transgene was removed by segregation.
• Deletion of exon 2 should result in loss of function of the Dhrs4 gene by deleting part of the catalytic domain and by generating a frameshift from exon 1 to exons 3 and 4.
• According to the NCBI and Ensembl databases, the BC036313 gene (Entrez ID: 268747) or Lrrc16b gene (ENSMUSG00000022211) is located approx. 10 kb downstream of Dhrs4 exon 2 in a tail-to-head orientation.
• Datamining and Design performed in 2009.

Taconic continues to strive to gain full access to all models for both non-profit and for-profit organizations. However, at this time some models are currently not available to commercial institutions. Please be sure to check back often as more models are made available on a routine basis.

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GEM Collection models exist as cryopreserved materials. Models can typically be recovered and delivered to customers within 14-16 weeks after order receipt. Customers will receive:

• A minimum of four (4) mice heterozygous for the selected mutation. In rare cases where the cryopreserved material also contains a recombinase gene, this may be reduced to 1-2 heterozygous mice.
• Validated genotyping protocols
• Animal health report. Mice will meet Taconic's Murine Pathogen Free™ (MPF™) health standard.

Please note that in rare instances (2%) cryorecovery may prove to be difficult, either extending timeline or ultimately successful recovery.

Nonprofit users: Nonprofit users must execute an MTA prior to accessing a GEM Collection Model.

• GEM Collection Academic MTA

Nonprofit order process is as follows:

1. Nonprofit Investigator visits the Taconic website and identifies GEM of interest.
2. Nonprofit Investigator fills out MTA (including scientific workplan answering 4 basic questions) and Investigator's institution reviews, signs and sends to info@taconic.com.
3. MTA is executed by all parties and release of model is approved.
4. Taconic contacts requestor to obtain purchase order (PO) to cover the cryorecovery and shipment costs if this has not already been provided.

Taconic begins cryorecovery upon receipt of PO and delivers model to requestor. It is the requestor's obligation to determine that the GEM meets their research needs.

Access to this model for nonprofit customers requires approval of a third-party Material Transfer Agreement (MTA). The terms of this MTA are non-negotiable. MTA approval may require 4-6 months due to circumstances outside our control. Once approved and the purchase confirmed, order fulfillment will require an additional 14-16 weeks. If you wish to continue your interest in this model, please complete the GEM Collection Inquiry Form. In addition, Taconic also offers complete model generation services that may allow for a reduced timeline to delivery of a comparable model. If you are interested in learning more, please request a GEMs Design Consultation.