Strain Name:


Stock Number:



Awaiting Transfer from the Donor

On 08-MAY-13 this strain was accepted for import and is now awaiting transfer to our campus.
Register Interest
These Slip-GC floxed mutant mice possess loxP sites flanking exons 2-4 of the nuclear GTPase, germinal center associated (Nuggc) gene. This strain may be useful for studying the increase in G:C transitions in B lymphocytes.


Strain Information

Type Coisogenic; Mutant Strain; Targeted Mutation;
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Specieslaboratory mouse
Donating Investigator Marilyn Diaz,   NIEHS

These Slip-GC floxed mutant mice possess loxP sites flanking exons 2-4, including the highly conserved GTPase domain, of the nuclear GTPase, germinal center associated (Nuggc) gene. Nuggc is expressed in germinal center B cell lymphocytes and may protect B cells from activation-induced deaminase (AID)-dependent DNA breaks. Nuggc is highly expressed in germinal center-derived B cell lymphomas. Homozygotes are viable and fertile. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 2-4 deleted in cre-expressing tissues.

For example, when crossed to Sox2-cre mice, expressing embryonic Cre recombinase in (see Stock No. 008454), Nuggc deficiency in offspring results in an increase in G:C transitions in B cells from Peyer's Patches.

A targeting vector was designed to insert a single loxP site upstream of exon 2, and a loxP-flanked neomycin resistance (neo) cassette downstream of exon 4 of the nuclear GTPase, germinal center associated (Nuggc) gene. The construct was electroporated into C57BL/6-derived embryonic stem (ES) cells. Correctly targeted ES cells were transiently transfected with a Cre expression plasmid to delete the neo cassette. Resulting ES cells contained multiple gene rearrangments; intact floxed-exons 2-4, intact floxed-neo cassette, or excision of both exons 2-4 and the neo cassette. Correctly targeted ES cells, containing only the floxed-exons 2-4, were injected into C57BL/6 blastocysts and resulting chimeric males were bred with C57BL/6 females. Progeny were crossed to remove the Cre transgene and these Slip-GC were bred to C57BL/6J mice for at least 6 generations. Mice were then bred to BALB/c mice for at least 6 generations. Upon arrival at The Jackson Laboratory, mice were bred to BALB/cJ inbred mice (Stock No. 000651) for at least one generation to establish the colony.

Control Information

   000651 BALB/cJ (approximate)
  Considerations for Choosing Controls


Phenotype Information

View Mammalian Phenotype Terms

Mammalian Phenotype Terms provided by MGI
      assigned by genotype


        involves: C57BL/6
  • no phenotypic analysis
  • *normal* no phenotypic analysis   (MGI Ref ID J:190402)
View Research Applications

Research Applications
This mouse can be used to support research in many areas including:

Cancer Research
Tumor Suppressor Genes

Cell Biology Research
DNA Damage Response

Research Tools
Cre-lox System
      loxP-flanked Sequences

Genes & Alleles

Gene & Allele Information provided by MGI

Allele Symbol Nuggctm1.2Diaz
Allele Name targeted mutation 1.2, Marilyn Diaz
Allele Type Targeted (Floxed/Frt)
Strain of OriginC57BL/6
Gene Symbol and Name Nuggc, nuclear GTPase, germinal center associated
Chromosome 14
Gene Common Name(s) C8orf80; Gm600; LOC239151; RGD1562099; SLIP-GC; gene model 600, (NCBI); predicted gene 600;
Molecular Note A loxP site was inserted upstream of exon 2. A floxed neo cassette was inserted downstream of exon 4. Cre-mediated recombination removed the neo cassette and left exons 2 through 4 floxed. [MGI Ref ID J:190402]


Genotyping Information

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Genotyping resources and troubleshooting


References provided by MGI

Selected Reference(s)

Richter K; Burch L; Chao F; Henke D; Jiang C; Daly J; Zhao ML; Kissling G; Diaz M. 2012. Altered pattern of immunoglobulin hypermutation in mice deficient in Slip-GC protein. J Biol Chem 287(38):31856-65. [PubMed: 22833677]  [MGI Ref ID J:190402]

Health & husbandry

Health & Colony Maintenance Information

Colony Maintenance

Breeding & HusbandryWhen maintaining a live colony, mice homozygous for the floxed allele may be bred together.

Pricing and Purchasing

Pricing, Supply Level & Notes, Controls


This strain is currently Awaiting Transfer from the Donor.

On 08-MAY-13 this strain was accepted for import and is now awaiting transfer to our campus.

Register Interest

View All Strains Awaiting Transfer from the Donor, In Progress and On Hold

Control Information

   000651 BALB/cJ (approximate)
  Considerations for Choosing Controls
  Control Pricing Information for Genetically Engineered Mutant Strains.

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The Jackson Laboratory has rigorous genetic quality control and mutant gene genotyping programs to ensure the genetic background of JAX® Mice strains as well as the genotypes of strains with identified molecular mutations. JAX® Mice strains are only made available to researchers after meeting our standards. However, the phenotype of each strain may not be fully characterized and/or captured in the strain data sheets. Therefore, we cannot guarantee a strain's phenotype will meet all expectations. To ensure that JAX® Mice will meet the needs of individual research projects or when requesting a strain that is new to your research, we suggest ordering and performing tests on a small number of mice to determine suitability for your particular project.
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