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| Because the naked cuticle (NKD) genes are considered targets for Wnt/b-catenin signaling, these nkd2lacZ mutant mice (as well as the similar nkd1lacZ mutant strain; Stock No. 006958) may be useful as a reporter for Wnt/b-catenin-dependent transcriptional activity during embryonic development or in adult mice. | |||||||
Type Mutant Stock; Targeted Mutation; Additional information on Genetically Engineered Mutant Mice. Mating System Homozygote x Homozygote (Female x Male) Species laboratory mouse Donating Investigator Keith Wharton, UT Southwestern Medical Center Description
Mice homozygous for this nkd2lacZ mutant allele are viable and fertile with slightly reduced mean litter sizes. RT-PCR analysis of homozygous brain tissue confirms that the deleted exons (encoding the Dvl-binding domain) are not expressed in homozygous mutants. However, the endogenous promoter directs expression of the internal ribosome entry site-β-galactosidase (IRES-lacZ) fusion gene in a manner that closely mimics the patterns of the endogenous gene mRNAs. Because the naked cuticle (NKD) genes are considered targets for Wnt/β-catenin signaling, these nkd2lacZ mutant mice (as well as the similar nkd1lacZ mutant strain; Stock No. 006958) may be useful as a reporter for Wnt/β-catenin-dependent transcriptional activity during embryonic development or in adult mice.Development
A targeting vector was designed to insert a stop codon into exon 6 at amino acid 121, as well as replace exons 6-8 of the targeted gene with an internal ribosome entry site-β-galactosidase (IRES-lacZ) fusion gene and neomycin cassette. The construct was electroporated into 129SvEv-derived embryonic stem (ES) cells. Correctly targeted ES cells were microinjected into blastocysts, and chimeric offspring were bred to C57BL/6 mice. Heterozygous mutants were bred to generate homozygotes, which were bred together for many generations prior to arrival at The Jackson Laboratory.
| Control | ||
|---|---|---|
| 101043 B6129SF1/J | (approximate) | |
| 101045 B6129SF2/J | (approximate) | |
| Considerations for Choosing Controls | ||
lacZ Expression Strains
View lacZ Expression Strains (175 strains)
Fluorescent Proteins/lacZ Systems
View Mammalian Phenotype Terms
Mammalian Phenotype Terms
assigned by genotype
Nkd2tm1Kwha/Nkd2+
involves: 129S/SvEv * C57BL/6
- reproductive system phenotype
- *normal* reproductive system phenotype (MGI Ref ID J:122353)
- mice are fertile
Nkd2tm1Kwha/Nkd2tm1Kwha
involves: 129S/SvEv * C57BL/6
- growth/size phenotype
- *normal* growth/size phenotype (MGI Ref ID J:122353)
- size and growth rate is normal relative to wild-type
- reproductive system phenotype
- *normal* reproductive system phenotype (MGI Ref ID J:122353)
- 3-month old males had similar testis-to-body weight as controls and normal spermatogenesis
- average litter size from homozygous intercrosses is 6.4 pups compared to 4.5 pups on the 129 background
- skeleton phenotype
- *normal* skeleton phenotype (MGI Ref ID J:122353)
- skeletons show no consistent differences relative to wild-type in terms of bone mass and morphology
The following phenotype information may relate to a genetic background differing from this JAX® Mice strain.
Nkd2tm1Kwha/Nkd2+
involves: 129S/SvEv
- reproductive system phenotype
- *normal* reproductive system phenotype (MGI Ref ID J:122353)
- mice are viable and fertile
Nkd2tm1Kwha/Nkd2tm1Kwha
involves: 129S/SvEv
- reproductive system phenotype
- *normal* reproductive system phenotype (MGI Ref ID J:122353)
- decreased litter size (MGI Ref ID J:122353)
- mean litter size of homozygous intercrosses is reduced (4.5 pups) compared to litters observed on mixed background (6.4 pups)
- skeleton phenotype
- *normal* skeleton phenotype (MGI Ref ID J:122353)
- skeletons show no consistent differences relative to wild-type in terms of bone mass or morphology
View Research Applications
Research Applications
This mouse can be used to support research in many areas including:
Cell Biology Research
Signal Transduction
Research Tools
lacZ Expression
Developmental Biology Research
| Allele Symbol | Nkd2tm1Kwha | ||
|---|---|---|---|
| Allele Name | targeted mutation 1, Keith Wharton | ||
| Allele Type | Targeted (Reporter) | ||
| Common Name(s) | nkd2lacZ; | ||
| Mutation Made By | Keith Wharton, UT Southwestern Medical Center | ||
| Strain of Origin | 129/SvEv | ||
| ES Cell Line Strain | 129 | ||
| Site of Expression | lacZ expression closely mimics the patterns of the endogenous gene. | ||
| Gene Symbol and Name | Nkd2, naked cuticle 2 homolog (Drosophila) | ||
| Chromosome | 13 | ||
| Gene Common Name(s) | 2210403L10Rik; AW212591; Naked2; RIKEN cDNA 2210403L10 gene; expressed sequence AW212591; | ||
| Molecular Note | A targeting vector was designed to insert a stop codon into exon 6 at amino acid 121, as well as replace exons 6-8 of the targeted gene with an internal ribosome entry site-b-galactosidase (IRES-lacZ) fusion gene and neomycin cassette. The construct was electroporated into 129SvEv-derived embryonic stem (ES) cells. RT-PCR analysis of brain tissue in homozygotes confirms lack of normal mRNA expression, while X-gal staining closely mimics dynamic expression pattern of normal Nkd2 mRNA. [MGI Ref ID J:122353] | ||
Genotyping Protocols
Nkd2tm1Kwha, SEP PCR, vers. 1
Helpful Links
Optimizing PCR Protocols
Zhang S; Cagatay T; Amanai M; Zhang M; Kline J; Castrillon DH; Ashfaq R; Oz OK; Wharton KA Jr. 2007. Viable mice with compound mutations in the Wnt/Dvl pathway antagonists nkd1 and nkd2. Mol Cell Biol 27(12):4454-64. [PubMed: 17438140] [MGI Ref ID J:122353]
Animal Health Reports
Room Number AX12
Colony Maintenance
Breeding & Husbandry When maintaining a live colony, homozygous mice are bred together. Mating System Homozygote x Homozygote (Female x Male) Diet Information LabDiet® 5K52/5K67
| Pricing for USA, Canada and Mexico shipping destinations |
|
Weeks of Age Price* Gender Genotypes Provided Individual Mouse Price $155.70 Female or Male Homozygous for Nkd2tm1Kwha *Price(s) in US dollars ($)
Pairs /Price* Pair Genotype $311.40 Homozygous for Nkd2tm1Kwha x Homozygous for Nkd2tm1Kwha
| Supply Notes |
|
|---|
| Pricing for International shipping destinations |
|
Weeks of Age Price* Gender Genotypes Provided Individual Mouse Price $202.50 Female or Male Homozygous for Nkd2tm1Kwha *Price(s) in US dollars ($)
Pairs /Price* Pair Genotype $404.90 Homozygous for Nkd2tm1Kwha x Homozygous for Nkd2tm1Kwha
| Supply Notes |
|
|---|
| Standard Supply | Repository-Live. A collection of over 1000 strains maintained as live colonies. Individual colonies are sized to meet current customer demand. Delivery for orders of 10 mice or less ranges on average from one to eight weeks; mice are generally shipped between four to six weeks of age with a maximum shipping age of ~nine weeks. Colony sizes do not generally support stringent age specifications for large volumes of mice; however custom orders and larger quantities of mice are easily arranged. Estimated ship dates for all orders provided within 48 hours of order placement. |
|---|---|
| Supply Notes |
|
| Control | ||
|---|---|---|
| 101043 B6129SF1/J | (approximate) | |
| 101045 B6129SF2/J | (approximate) | |
| Considerations for Choosing Controls | ||
| USA, Canada and Mexico - Control Pricing Information for Genetically Engineered Mutant Strains. | ||
| International - Control Pricing Information for Genetically Engineered Mutant Strains. | ||
Purchasing Information
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Surgical Services
Contact Information
Orders & Technical Support
Tel: 800.422.6423 or 207.288.5845
Fax: 207.288.6150
Technical Support Email Form
| phone: | 207-288-6470 |
| fax: | 207-288-6655 |
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