These mice carry an R451C mutation in exon 7 of the Nlgn3 (neuroligin 3) gene. mRNA is detected by real-time PCR analysis of brain from homozygous animals. Mutant mice exhibit enhancements in inhibitory synaptic transmission as well as spacial learning and memory, but show deficits in social interaction. This mutant mouse strain may be useful in studies of the pathophysiology of autism. Exon 7 is additionally flanked by loxP sites. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele. Mice that are homozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical abnormalities.
Dr. Thomas C. Sudhof, Stanford University School of Medicine
These mice carry an R451C mutation in exon 7 of the gene. mRNA is detected by real-time PCR analysis of brain from homozygous animals. Mutant mice exhibit enhancements in inhibitory synaptic transmission as well as spacial learning and memory, but show deficits in social interaction. This mutant mouse strain may be useful in studies of the pathophysiology of autism. Exon 7 is additionally flanked by loxP sites. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele. Mice that are homozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical abnormalities.
Residue 451 of exon 7 (encoding arginine) was mutated to create a cysteine substitution (R451C). The same exon was flanked by loxP sites. A neomycin-resistant cassette flanked by frt sites was inserted in intron 7. The construct was electroporated into (129X1/SvJ x 129S1/Sv)F1- Kitl+-derived R1 embryonic stem (ES) cells. Correctly targeted ES cells were injected into recipient blastocysts. The resulting chimeric animals were crossed to C57BL/6 mice, and then backcrossed to the same for three to nine generations. The neomycin cassette was removed through crosses with a Flp strain (background not specified).
|Allele Name||targeted mutation 1, Thomas C Sudhof|
|Allele Type||Targeted (Humanized sequence)|
|Gene Symbol and Name||Nlgn3, neuroligin 3|
|Gene Synonym(s)||A230085M13Rik; A230085M13Rik; HNL3; NL3; RIKEN cDNA A230085M13 gene|
|Promoter||Nlgn3, neuroligin 3, mouse, laboratory|
|Strain of Origin||(129X1/SvJ x 129S1/Sv)F1-Kitl<+>|
|Molecular Note||Exon 7 was replaced with an exon 7 carrying an arginine to cysteine amino acid substitution at position 451 (R451C). A neo cassette used as a selectable marker was removed via flip-mediated recombination leaving a floxed exon 7 carrying the mutation. The R451C substitution in the extracellular esterase-homology domain that results in increased endoplasmic reticulum retention in humans with autism spectrum disorder. PCR was used to confirm the insertion. Western blot analysis reveal a decrease in protein expression to 10% of wild-type levels. Authors state that this mutation is likely to cause a gain-of-function mutation.|
|Mutations Made By|| |
Dr. Thomas Sudhof, Stanford University School of Medicine
This targeted mutation is located on the X chromosome. When maintaining a live distribution colony, heterozygous females may be bred with hemizygous males. In order to keep some of the mice ideally suited for use when deletion of the floxed-mutant exon 7 is planned, some of the colony may be maintained by breeding homozygous females to hemizygous males.
When using the B6;129-Nlgn3tm1Sud/J mouse strain in a publication, please cite the originating article(s) and include JAX stock #008475 in your Materials and Methods section.
|X linked Heterozygous females and Wild-type males for Nlgn3<tm1Sud>|
We will fulfill your order by providing at least two carriers for each strain ordered. The total number, sex, and genotypes provided will vary, although typically 8 or more animals are provided. Please check genotypes which will be recovered. While the genotypes of all animals produced will be communicated to you prior to scheduling shipment, the genotypes of animals provided may not reflect the mating scheme and genotypes described in the strain description. Animals are typically ready to ship in 11-14 weeks. If a second recovery is required to produce the minimum number of animals, then delivery time would increase to approximately 25 weeks. If we fail to produce animals of the correct genotype, you will not be charged. We cannot guarantee the reproductive success of mice shipped to your facility. If the mice are lost after the first three days (post-arrival) or do not produce progeny at your facility, a new order and fee will be necessary.
Cryorecovery to establish a Dedicated Supply for greater quantities of mice. Mice recovered can be used to establish a dedicated colony to contractually supply you mice according to your requirements. Price by quotation.
|Frozen Mouse Embryo||$2,595.00 per straw or vial|
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