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Strain Name:

B6.129S4(Cg)-Arntltm1Weit/J

Stock Number:

007668

Availability:

Repository- Live


General Terms and Conditions

Former Name      B6.129S4-Arntltm1Weit/J    (Changed: 12-SEP-07 )
Genes & Alleles   Arntl;   Arntltm1Weit;


Product Information

Strain Details

Type JAX® GEMM® Strain - Congenic
Additional information on JAX® GEMM® Strains.
Type JAX® GEMM® Strain - Mutant Strain
Type JAX® GEMM® Strain - Targeted Mutation
Mating SystemHomozygote x Homozygote         (Female x Male)
Specieslaboratory mouse
Donating Investigator Charles Weitz,   Harvard Medical School

Strain Description
Mice homozygous for this conditional (floxed) allele possess loxP sites flanking exon 8 of the targeted gene and are viable and fertile, with circadian behavioral rhythms indistinguishable from wildtype littermates. When bred to mice that express Cre recombinase, the resulting offspring will have the exon encoding the ARNTL (BMAL1) basic helix-loop-helix (bHLH) domain deleted in the cre-expressing tissue(s). These Bmal1-floxed mutant mice may be useful in generating conditional mutations (whole-mouse or tissue-specific) to study the role of circadian clock/circadian rhythm in physiological and behavioral regulation.

For example, when crossed to a strain expressing Cre recombinase in the retina (see Stock No. 005105), this mutant mouse strain may be useful in studies of the circadian clock of the retina.

Strain Development
Using homologous recombination in a bacterial artificial chromosome (BAC, clone RPCI23-331K23), an FRT-flanked neo cassette (followed by a loxP site) was inserted immediately downstream of exon 8 of the targeted gene. An additional loxP site was added upstream of exon 8 when the targeting vector was excised from the BAC. This construct was electroporated into 129S4/SvJae-derived J1 embryonic stem (ES) cells. Correctly targeted ES cells were injected into blastocysts and chimeric mice were bred to Flpe-expressing mice (see Stock No. 003946) to excise the neo cassette. The resulting offspring were next bred to C57BL/6 congenic mutant mice (non-germline cre mice). After this, mice were selectively backcrossed to C57BL/6J inbred mice for at least 6 generations to contain only the conditional mutation (loxP-flanked exon 8 with a single remaining FRT site) prior to arrival at The Jackson Laboratory.

Mammalian Phenotype Terms assigned by genotype

The following phenotype relates to a compound genotype created using this strain.
Contact JAX® Services jaxservices@jax.org for customized breeding options.

Arntltm1Weit/Arntltm1Weit Tg(Chx10-EGFP/cre-ALPP)2Clc/0

        involves: 129S4/SvJae * C57BL/6   (conditional)
  • behavior/neurological phenotype
  • abnormal circadian rhythm (MGI Ref ID J:124157)
    • no detectable circadian rhythm of b-wave amplitude is observed, with b-wave responses apparently fixed at low amplitude at times of both high and low b-wave amplitude (circadian times CT 6 and CT 18)
    • no circadian rhythm of b-wave implicit time (time between light stimulus and peak of b-wave) is detectable, whereas this is robust in controls
  • vision/eye phenotype
  • abnormal eye electrophysiology (MGI Ref ID J:124157)
    • under dark-adapted conditions, amplitude of b-wave is reduced by 27%, causing significant reduction in b-wave to a-wave amplitude ratio
    • under light-adapted conditions, b-wave amplitude is reduced by 44%

Gene & Allele Details

Allele Symbol Arntltm1Weit
Allele Name targeted mutation 1, Charles Weitz
Common Name(s) conditional Bmal;
Mutation Made By Charles Weitz,   Harvard Medical School
Strain of Origin129S4/SvJae
ES Cell Line NameJ1
ES Cell Line Strain129S4/SvJae
Gene Symbol and Name Arntl, aryl hydrocarbon receptor nuclear translocator-like
Chromosome 7
Gene Common Name(s) Arnt3; BMAL1; BMAL1c; JAP3; MGC47515; MOP3; PASD3; TIC; bHLHe5;
Molecular Note Using homologous recombination in a bacterial artificial chromosome (BAC, clone RPCI23-331K23), an FRT-flanked neo cassette (followed by a loxP site) was inserted immediately downstream of exon 8 of the targeted gene. An additional loxP site was added upstream of exon 8 when the targeting vector was excised from the BAC. This construct was electroporated into J1 embryonic stem (ES) cells. Correctly targeted ES cells were injected into blastocysts and chimeric mice were bred to Flpe-expressing mice to excise the neo cassette. [MGI Ref ID J:124157]

Control Information

  Control
   000664 C57BL/6J
 
  Considerations for Choosing Controls

Genotyping Protocols

Arntltm1Weit

Colony Maintenance

Breeding & HusbandryWhen maintaining a live colony, homozygous mice may be bred.
Diet Information LabDiet® 5K52/5K67

Related Strains

Strains carrying other alleles of Arntl
007618   B6.Cg-Tg(tetO-Arntl)1Jt/J
View Strains carrying other alleles of Arntl     (1 strain)

Additional Web Information

Congenic Nomenclature
Cre-lox or FLP-FRT Systems

Animal Health Reports

Room Number           AX12

Research Applications

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

Neurobiology Research
Circadian Rhythms
Cre-lox System (loxP-flanked Sequences)

Research Tools
Cardiovascular Research (Cre-lox System)
Cre-lox System (loxP-flanked Sequences)
Developmental Biology Research (Cre-lox System)
Diabetes and Obesity Research (loxP)
Reproductive Biology Research (Cre-lox System)

References

Selected Reference(s)

Storch KF; Paz C; Signorovitch J; Raviola E; Pawlyk B; Li T; Weitz CJ. 2007. Intrinsic circadian clock of the Mammalian retina: importance for retinal processing of visual information. Cell 130(4):730-41. [PubMed: 17719549]  [MGI Ref ID J:124157]


Price and Supply Information

Strain Name: B6.129S4(Cg)-Arntltm1Weit/J
Stock Number: 007668

Price Details

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Supply Details

Standard SupplyRepository-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 Usually shipped between four and eight weeks of age.
This strain is included in the Induced Mutant Resource Colony collection.
LicensingSee General Terms and Conditions below for Licensing and Use Restrictions  
Control InformationView Control Information in Strain Details.

General Terms and Conditions

View JAX® Mice & Services Conditions of Use.

Effective September 26, 2007: License Requirements for Strains using Cre-lox Technology only apply in Canada, see Licenses for Strains using Cre-lox Technology.

For additional Licensing and Use Restrictions view the link(s) below:
- Use of MICE by companies or for-profit entities requires a license prior to shipping.
- Use of MICE by companies or for-profit entities requires a license.

The Jackson Laboratory's Genotype Promise

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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