Strain Detail Sheet

Strain Name    :

B6.129X1-Chrna4tm2Jbou/Mmucd

Stock Number :

030511-UCD

Other Names   :

ADNFLE +L264, B6.129X1-Chrna4tm2Jbou/Mmcd

Gene Information

Gene Details [Including genotyping protocols]

(provided by MGI)
Target: Chrna4tm2Jbou
Name: targeted mutation 2, Jim Boulter
Alteration at locus: Knock-In
Target: Chrna4
Name: cholinergic receptor, nicotinic, alpha polypeptide 4
Chromosome: 2
Alteration at locus: Knock-In

Genetic Alterations:
Inserted an additional leucine (Leu) residue at amino acid position 264 located in the second transmembrane domain (exon 5) of the nicotinic acetylcholine receptor subunit gene alpha 4 (Chrna4 +L264)

Genotype Determination:

ES Cell Line: Not specified derived from B6;129S4

Strain Description [Including phenotype, strain background, strain development and suggested control mice]

Phenotype

Homozygous phenotype: The Chrna4 +L264/+L264 mice possess abnormal cortical EEG patterns and exhibit recurrent spontaneous seizures.

Heterozygous phenotype: The Chrna4 +L264/wt mice possess abnormal cortical EEG patterns and exhibit spontaneous recurrent seizures. Heterozygous +L264/wt mice were engineered as an animal model of a human inherited partial epilepsy syndrome known as autosomal dominant nocturnal frontal lobe epilepsy (ADNFLE).


Mammalian Phenotype Terms:(provided by MGI)      Extend all MPTs
      assigned by genotype

The following phenotype information may relate to one or more alleles on a genetic background differing from this MMRRC strain.
Chrna4tm2Jbou/Chrna4+
        either: (involves: 129S4/SvJae * 129X1/SvJ * C57BL/6J) or (involves: 129X1/SvJ * C57BL/6J)
  • behavior/neurological phenotype
    • behavioral arrest (MGI Ref ID J:118273)
      • observed during seizures
    • seizures (MGI Ref ID J:118273)
      • mice exhibit spontaneous recurrent seizures, ranging from 1-5s of behavioral arrest to extended (2-60 seconds) of rhythmic jerking movements of extremities, with loss of balance and falling over
      • clonic seizures (MGI Ref ID J:118273)
  • nervous system phenotype
    • abnormal nervous system physiology (MGI Ref ID J:118273)
      • abnormal brain wave pattern (MGI Ref ID J:118273)
        • mutants show abnormal EEG activity during seizure episodes, such as repetitive discharges with paroxysmal onset and sudden termination with asymmetric rhythm patterns; this is observed for 5.1% of a 4-hour recording period
      • seizures (MGI Ref ID J:118273)
        • mice exhibit spontaneous recurrent seizures, ranging from 1-5s of behavioral arrest to extended (2-60 seconds) of rhythmic jerking movements of extremities, with loss of balance and falling over
        • clonic seizures (MGI Ref ID J:118273)
Chrna4tm2Jbou/Chrna4tm2Jbou
        either: (involves: 129S4/SvJae * 129X1/SvJ * C57BL/6J) or (involves: 129X1/SvJ * C57BL/6J)
  • behavior/neurological phenotype
    • behavioral arrest (MGI Ref ID J:118273)
      • observed during seizures
    • seizures (MGI Ref ID J:118273)
      • mice exhibit spontaneous recurrent seizures, ranging from 1-5s of behavioral arrest to extended (2-60 seconds) of rhythmic jerking movements of extremities, with loss of balance and falling over
      • clonic seizures (MGI Ref ID J:118273)
  • nervous system phenotype
    • abnormal nervous system physiology (MGI Ref ID J:118273)
      • abnormal brain wave pattern (MGI Ref ID J:118273)
        • mutants show abnormal EEG activity during seizure episodes, such as repetitive discharges with paroxysmal onset and sudden termination with asymmetric rhythm patterns; this is observed for 5.7% of a 4-hour recording period
      • seizures (MGI Ref ID J:118273)
        • mice exhibit spontaneous recurrent seizures, ranging from 1-5s of behavioral arrest to extended (2-60 seconds) of rhythmic jerking movements of extremities, with loss of balance and falling over
        • clonic seizures (MGI Ref ID J:118273)

Strain of Origin: 129X1/SvJ

Strain genetic background: C57BL/6J

Strain Development: Founder male mouse mated to female C57BL/6J. Continuous backcrossing of heterozygous progeny to wild type C576BL/6J (both male and female) through N12 (at least).

Suggested Control Mice:

  • Wildtype littermates

Research Applications

  • Models for Human Disease
  • Neurobiology
  • Epilepsy

Strain Origin

Donor: Jim Boulter, Ph.D., UCLA

Primary Reference:

  • Klaassen A, Glykys J, Maguire J, Labarca C, Mody I, Boulter J. Seizures and enhanced cortical GABAergic inhibition in two mouse models of human autosomal dominant nocturnal frontal lobe epilepsy. Proc Natl Acad Sci U S A. 2006 Dec 12;103(50):19152-7. Epub 2006 Dec 4. (Medline PMID: 17146052 )
  • Mann EO, Mody I. The multifaceted role of inhibition in epilepsy: seizure-genesis through excessive GABAergic inhibition in autosomal dominant nocturnal frontal lobe epilepsy. Curr Opin Neurol. 2008 Apr;21(2):155-60. Review. (Medline PMID: 18317273 )

Colony and Husbandry Information

Special Considerations

Occasional case of ulcerative dermatitis associated with inbred C57BL/6J mice. Occasional spontaneous seizure activity in pups prior to weaning with increased risk of maternal neglect and/or cannibalism.

Health Status Report

Mice recovered from a cryo-archive will have health surveillance performed on recipient females. Health reports will be provided prior to shipment. If you require additional health status information, please email mmrrc@ucdavis.edu.

Order Request Information

Availability Level

Limited quantities of breeder mice (recovered litter) are available from a cryoarchive; recovered litter usually available to ship in 3 to 4 months.

Conditions of Distribution [Including applicable technology transfer agreements]

Distribution of this strain requires submission of the MMRRC Conditions of Use (COU). A link to the COU web form will be provided via email after an order has been placed; the form should be completed then or the email forwarded to your institutional official for completion.

Fees

Additional charges may apply for any special requests. Shipping costs are in addition to the basic distribution/resuscitation fees. Information on shipping costs and any additional charges will be provided by the supplying MMRRC facility.

Click button to Request this one strain. (Use the MMRRC Catalog Search to request more than one strain.)
MMRRC Item # - Description Distribution
Fee/unit (US $)
Units Notes
030511-UCD-RESUSLitter recovered from cryo-archive
$2,022.00 / $4,109.00
Non-Profit / For-Profit
Litter Recovered litter1; additional fees for any special requests.
030511-UCD-SPERMCryo-preserved spermatozoa
$437.00 / $817.00
Non-Profit / For-Profit
Aliquot Approximate quantity.2
030511-UCD-EMBRYOCryo-preserved embryos
$1,038.00 / $2,621.00
Non-Profit / For-Profit
Aliquot Approximate quantity3: 20-40 embryos / aliquot

1 The distribution fee covers the expense of resuscitating mice from the cryo-archive; you will receive the resulting litter. The litter will contain at minimum one mutant carrier; the actual number of animals and the gender and genotype ratios will vary. (Typically, multiple breeder pairs can be established from the recovered litter.) Prior to shipment, the MMRRC will provide information about the animals recovered. If you anticipate or find that you need to request specific genotypes, genders or quantities of mice in excess of what is likely from a resuscitated litter, you may discuss available options and pricing with the supplying MMRRC facility.

2 An aliquot is one straw or vial with sufficient sperm to recover at least one litter of mice, as per provided protocols, when performed at the MMRRC facility. The MMRRC makes no guarantee concerning the success of these procedures when performed outside the MMRRC facilities.

3 An aliquot contains a sufficient number of embryos (in one or more vials and based on the transfer success rate of the MMRRC facility) to transfer to at least two recipients. The MMRRC makes no guarantee concerning embryo transfer success experienced in the recipient investigator's laboratory. Neither gender nor genotype ratios are guaranteed.

To request material from the MMRRC: Please fill out our on-line request form (accessible from the catalog search results page, or click the Request this Strain button in the fees section above). If you have questions or need assistance completing this form, you may call Customer Service at (800) 910-2291 (in USA or Canada) or (530) 757-5710 (international calls). Before you call, please have with you: the MMRRC item number, quantity needed, Bill-to and Ship-to contact information.



To request material from the MMRRC: Please fill out our on-line request form (accessible from the catalog search results page, or click the Request this Strain button in the fees section). If you have questions or need assistance completing this form, you may call Customer Service at (800) 910-2291 (in USA or Canada) or (530) 757-5710 (international calls). Before you call, please have with you: the MMRRC item number, quantity needed, Bill-to and Ship-to contact information.



The MMRRC is a collaborative effort, funded by grants from DPCPSI of the NIH.

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Generated: 04/23/2014