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Strain Name:

B6C3Fe a/a-Qkqk/J

Stock Number:

000506

Availability:

Repository-Cryopreserved


Price and Supply Information

General Terms and Conditions

Former Name      B6C3Fe a/a-Qk/J    (Changed: 15-DEC-04 )
      B6C3Fe a/a-qk/+    (Changed: 15-DEC-04 )
      B6C3Fe-a/a-qk/+    (Changed: 15-DEC-04 )
Genes & Alleles   Qk;   Qkqk;   a;


Product Information

Strain Details

Type JAX® GEMM® Strain - Mutant Strain
Additional information on JAX® GEMM® Strains.
Type JAX® GEMM® Strain - Spontaneous Mutation
Specieslaboratory mouse
GenerationN16p

Appearance
black, tremors
Related Genotype: a/a Qkqk/Qkqk

black, unaffected
Related Genotype: a/a Qkqk/+ or a/a ?/+

Strain Description
Mice homozygous for the quaking spontaneous mutation (Qk) have marked rapid tremor which disappears when they are at rest but increases during locomotion. The tremor in homozygous mutant mice begins at about 10 days and is fully developed by 3 weeks. Mature mice may have seizures in which a motionless posture is maintained for many seconds. Females are viable and fertile, males are sterile due to defective spermatic differentiation. The entire CNS of quaking mutant mice is severely deficient in myelin and there is a less severe myelin deficiency in the PNS.

Strain Development
The quaking (Qkqk) mutation arose spontaneously in 1961 in the DBA/2J strain. It was crossed twice to C3H then transferred to the C57BL/6JEi background via backcross-intercross mating until N10 then sibling bred. At N11F10 it was bred to C57BL/6J-T2J, and a repulsion stock was generated. In 1976 a Qkqk homozygote was outcrossed to a B6C3HF1 male, removing the T2J mutation, and the Qkqk mutation was maintained via cross-intercross using Qkqk homozygous females and B6C3F1 males for the cross since homozygous males are sterile. At N8F4 a change was made to use B6C3Fe-a/a F1 for the outcross. In 1987 homozygous females at N15F1 were bred with B6C3F3-a/a F1 males to generate embryos for cryopreservation.

Mammalian Phenotype Terms assigned by genotype

Qkqk/Qkqk

        B6C3Fe a/a-Qkqk/J
  • hearing/vestibular/ear phenotype
  • reduced linear vestibular evoked potential (MGI Ref ID J:116914)
    • prolonged latency for all peaks and larger amplitudes for P1/N1
  • nervous system phenotype
  • Purkinje cell degeneration (MGI Ref ID J:102038)
    • aging mutants exhibit Purkinje cell axonal swellings, indicating neurodegeneration
  • abnormal myelination (MGI Ref ID J:102038)
    • decrease in myelination, however more axons are surrounded by thin myelin sheaths than seen in Qke5 homozygotes
  • seizures (MGI Ref ID J:102038)
    • onset of seizures begins at 6-8 weeks of age; seizures occur less frequently than in homozygous Qke5 mice
  • behavior/neurological phenotype
  • seizures (MGI Ref ID J:102038)
    • onset of seizures begins at 6-8 weeks of age; seizures occur less frequently than in homozygous Qke5 mice

The following phenotype information may relate to a genetic background differing from this JAX® Mice strain.

Qkqk/Qkqk

        involves: DBA/2J
  • behavior/neurological phenotype
  • abnormal response to novel object (MGI Ref ID J:133042)
    • decrease in the frequency of exploratory sniffing (at wire mesh or a novel object) and leans against the novel object in males
  • abnormal voluntary movement (MGI Ref ID J:133042)
    • decrease in the frequency of exploratory sniffing (at wire mesh or a novel object) in males
    • abnormal locomotor activity (MGI Ref ID J:133042)
      • ecrease in the frequency of wire mesh climbing in males
      • abnormal gait (MGI Ref ID J:133042)
        • walk slowly with a trembling gait
      • hypoactivity (MGI Ref ID J:133042)
    • abnormal stationary movement (MGI Ref ID J:133042)
      • decrease in the frequency of leaning against the wall or a novel object and single forepaw lifts in males
  • increased grooming behavior (MGI Ref ID J:133042)
    • increase in the frequency of hair fluffing in males

Qkqk/Qkqk

        involves: C3H/Di * DBA/2J
  • nervous system phenotype
  • abnormal myelination (MGI Ref ID J:13141)
    • region from olfactory bulb to sacral spinal cord is deficient in myelin at all ages studied (12 days to 4 months)
    • loss of myelination begins at the junction of peripheral and central nervous systems
    • cranial and spinal nerves (except optic nerve) are myelinated
    • some fragments of myelin are seen in almost all fiber tracts
    • cells in white matter and grey matter tracts appear normal
  • tonic seizures (MGI Ref ID J:13141)
    • following swimming, some mice become motionless and then display a tonic extension of hindlimbs for several minutes
    • some mice exhibit adduction of limbs under a flexed trunk and then become stiff and motionless for several seconds
  • behavior/neurological phenotype
  • tonic seizures (MGI Ref ID J:13141)
    • following swimming, some mice become motionless and then display a tonic extension of hindlimbs for several minutes
    • some mice exhibit adduction of limbs under a flexed trunk and then become stiff and motionless for several seconds
  • tremors (MGI Ref ID J:13141)
    • tremors are most evident in the caudal part of the trunk and proximal portions of hind extremities
    • visually, the rate of tremors are 2 to 3 per second
    • tremors are first observed at 10-12 days of age and reach full expression by 3 weeks
    • in some animals, tremors diminish at 3 months
    • physical contact with the mouse reduces or stops tremors
  • muscle phenotype
  • muscle weakness (MGI Ref ID J:13141)
    • some animals exhibit hindlimb weakness at 3 months of age
  • reproductive system phenotype
  • reduced male fertility (MGI Ref ID J:13141)
    • male homozygotes rarely sire offspring

Gene & Allele Details

Allele Symbol Qkqk
Allele Name quaking
Common Name(s) qk; qkv;
Strain of OriginDBA/2J
Gene Symbol and Name Qk, quaking
Chromosome 17
Gene Common Name(s) MGC188205; QkI; l(17)-1Wis; l17Wis1; lethal, Chr 17, U Wisconsin 1;
General Note The quaking mutation arose spontaneously in the DBA/2J strain. Homozygotes have marked rapid tremor which disappears when they are at rest but increases during locomotion. It begins at about 10 days and is fully developed by 3 weeks. Mature mice may haveseizures in which a motionless posture is maintained for many seconds. Females are viable and fertile, males sterile.Homozygotes are severely deficient in myelin, the material which ensheathes and insulates the axons of the central (CNS) and peripheral(PNS) nervous systems (see Mbp). The entire CNS is very deficient in myelin at all ages (J:13141), and there is a less severe myelin deficiency in the PNS nervous system (J:5177). Myelin sheaths are present in the CNS, but they are thinner than normal, some consisting of only one to four myelin lamellae. The sheaths are usually loosely wound, with patches of oligodendroglial cell cytoplasm between the lamellae, and there are abnormal inclusions and vacuoles in the processes and perikarya of oligodendrocytes. Development of the myelin sheaths appears to be arrested in a stage characteristic of very young animals (J:5189)(J:5271)(J:5218). There is variable hyperplasia of oligodendrocytes, greatest in the tracts with the greatest degree of myelination (J:5615). Axons have normal morphology but there is abnormally high proteolysis in the axons of the optic nerve (J:6971). There is evidence that the myelination defect in the CNS is due to defective oligodendrocytes (J:6216).Handling-induced convulsive seizures in qk/qk mice can be inhibited by administration of N-methyl-D-aspartate (NMDA) antagonists. Modulatory mechanisms for the NMDA receptor complex may differ in qk/qk mice from wild-type (J:1930). a2-adrenoceptor (A2A) antagonists also inhibit these seizures, while A2A agonists potentiate them. qk/qk mice have increased brain binding sites for A2A agonists (J:1169).In the PNS, thinly myelinated and unmyelinated fibers have been described in the sciatic nerve and in the intracranial portion of the trigeminal nerve (J:5189)(J:5271). The sheaths may be structurally abnormal with regions of uncompacted myelin lamellae similar to those of the CNS (J:5778). Orthotopic transplantation of pieces of sciatic nerve between quaking and normal mice has shown that the genetic defect is expressed in Schwann cells (J:14892). Qk causes defective myelinogenesis in both oligodendrocytes and Schwann cells (J:6411).There is an extensive literature on biochemical defects related to the deficiency of myelin in quaking mice (J:26986), a consistent finding of which is a severe deficiency of the myelin lipids, sphingomyelin, cerebrosides, and sulfatides, particularly those containing long-chain fatty acids. The normal increase in these fatty acids which occurs between 15 and20 days does not occur in qk/qk mice, so that adult mutants tend to resemble very young controls (J:5171). Brain proteolipids in adult quaking mice retain the relative proportions found in 10-day controls (J:5408). The myelin-associated glycoproteins of different molecular weight in the brains of quaking mice 15 days of age and older are expressed in abnormal proportions (J:7990). Synthesis of myelin basic protein and proteolipids is normal in quaking brains but their incorporation into myelin is defective (J:6151). mRNAs for myelin basic protein, for example, occur in oligodendrocyte cell bodies, but not in the cell processes that actually form the myelin sheath, in qk/qk brain (J:1931). Quaking mice may have abnormal levels of copper and zinc in the brain, but the evidence on this point is conflicting (J:7214).The sterility of male qk/qk mice is due to defective spermatid differentiation, the details of which have been described (J:5241).
Molecular Note The quaking phenotype has been attributed to a 1.85 Mb deletion on chromosome 17. The proximal breakpoint was located in the promoter region of the Qk gene and affects transcript levels of that gene. The distal breakpoint lies between exons 5 and 6 ofthe parkin gene. Both the parkin gene and another co-regulated gene, Pacrg, are inactivated. Although parkin is not expressed in these mutants, the described phenotype appears due to to the defect in Qk expression. [MGI Ref ID J:101474] [MGI Ref ID J:55007] [MGI Ref ID J:87498] [MGI Ref ID J:88351]
 
Allele Symbol a
Allele Name nonagouti

Control Information

  Allele   Control
 Qkqk  Untyped from the colony
 
  Considerations for Choosing Controls
  Control Pricing Information for JAX® GEMM® Strains

Colony Maintenance

Breeding & HusbandryComments: homozygous males are sterile.

Related Strains

Strains carrying   Qkqk allele
000567   B6.Cg-T2J +/+ Qkqk/J
View Strains carrying   Qkqk     (1 strain)

Strains carrying   a allele
003879   B10;TFLe-a/a T tf/+ tf/J
001538   B6 x B6C3Sn a/A-T(1;9)27H/J
000916   B6 x B6C3Sn a/A-T(5;12)31H/J
000602   B6 x B6C3Sn a/A-T(8;16)17H/J
000618   B6 x FSB/GnEi a/a Ctslfs/J
000577   B6 x STOCK a Oca2p Hps5ru2 Ednrbs/J
000601   B6 x STOCK a/a T(7;18)50H/J
000592   B6 x STOCK T(2;4)13H a/J
000001   B6.C3 A/a Mgrn1md/J
000785   B6;D2-a Es1e/J
000604   B6C3 a/A-T(10;13)199H +/+ Lystbg-J/J or Lystbg-2J/J
002807   B6C3Fe a/a-Meox2fla/J
000224   B6C3Fe a/a-Scyl1mdf/J
001037   B6C3Fe a/a-Agtpbp1pcd/J
000221   B6C3Fe a/a-Alx4lst-J/J
002062   B6C3Fe a/a-Atp7aMo-8J/J
001756   B6C3Fe a/a-Cacng2stg/J
001815   B6C3Fe a/a-Col1a2oim/J
000231   B6C3Fe a/a-Csf1op/J
000209   B6C3Fe a/a-Dh/J
000211   B6C3Fe a/a-Dstdt-J/J
000210   B6C3Fe a/a-Edardl-J/J
000207   B6C3Fe a/a-Edaraddcr/J
000182   B6C3Fe a/a-Eef1a2wst/J
001278   B6C3Fe a/a-Glra1spd/J
000241   B6C3Fe a/a-Glrbspa/J
002875   B6C3Fe a/a-Hoxd13spdh/J
000304   B6C3Fe a/a-Krt71Ca Scn8amed-J/J
000226   B6C3Fe a/a-Largemyd/J
000636   B6C3Fe a/a-Lmx1adr-J/J
001280   B6C3Fe a/a-Lse/J
001573   B6C3Fe a/a-MitfMi/J
001035   B6C3Fe a/a-Napahyh/J
000181   B6C3Fe a/a-Otogtwt/J
000278   B6C3Fe a/a-Papss2bm Hps1ep Hps6ru/J
000205   B6C3Fe a/a-Papss2bm/J
002078   B6C3Fe a/a-Pcdh15av-2J/J
000246   B6C3Fe a/a-Pitpnavb/J
001430   B6C3Fe a/a-Ptch1mes/J
000235   B6C3Fe a/a-Relnrl/J
000237   B6C3Fe a/a-Rorasg/J
000290   B6C3Fe a/a-Sox10Dom/J
000230   B6C3Fe a/a-Tcirg1oc/J
003612   B6C3Fe a/a-Trak1hyrt/J
001512   B6C3Fe a/a-Ttnmdm/J
001607   B6C3Fe a/a-Unc5crcm/J
000005   B6C3Fe a/a-Wc/J
000243   B6C3Fe a/a-Wnt1sw/J
000248   B6C3Fe a/a-Xpl/J
001750   B6C3Fe a/a-XsJ/J
000624   B6C3Fe a/a-anx/J
003020   B6C3Fe a/a-dep/J
002018   B6C3Fe a/a-din/J
002339   B6C3Fe a/a-nma/J
000240   B6C3Fe a/a-soc/J
000063   B6C3Fe a/a-sy/J
001055   B6C3Fe a/a-tip/J
000245   B6C3Fe a/a-tn/J
000296   B6C3Fe-a/a Hoxa13Hd Mcoln3Va-J/J
000019   B6C3Fe-a/a-Itpr1opt/J
001022   B6C3FeF1/J a/a
000971   B6EiC3 a/A-Och/J
000551   B6EiC3 a/A-Tbx15de-H/J
006450   B6EiC3 a/A-Vss/J
000557   B6EiC3-+ a/LnpUl A/J
000503   B6EiC3Sn a/A-Gy/J
001811   B6EiC3Sn a/A-Otcspf-ash/J
002343   B6EiC3Sn a/A-Otcspf/J
000391   B6EiC3Sn a/A-Pax6Sey-Dey/J
001924   B6EiC3Sn a/A-Ts(1716)65Dn
001923   B6EiC3Sn a/A-Ts(417)2Lws Tim/J
000225   C3FeLe.B6 a/a-Ptpn6me/J
000198   C3FeLe.B6-a/J
000291   C3FeLe.Cg-a/a Hm KitlSl Krt71Ca-J/J
001886   C3HeB/FeJLe a/a-gnd/J
000584   C57BL/6J-+ T(1;2)5Ca/a +/J
000284   CWD/LeJ
000670   DBA/1J
000671   DBA/2J
001057   HPT/LeJ
000260   JGBF/LeJ
000265   MY/HuLeJ
000308   SSL/LeJ
000994   STOCK a Myo5ad Mregdsu/J
000064   STOCK a Tyrp1b Sisi/J
002238   STOCK a Tyrp1b shmy/J
001433   STOCK a skt/J
000579   STOCK a tp/J
000319   STOCK a us/J
002648   STOCK a/a Cln6nclf/J
000317   STOCK a/a Egfrwa2/J
000302   STOCK a/a MitfMi-wh +/+ Itpr1opt/J
000286   STOCK a/a Myo5ad fd/+ +/J
000206   STOCK a/a Tyrc-h/J
001432   STOCK a/a Tyrp1b sks/Tyrp1b +/J
000281   STOCK a/a ma ft/ma ft/J
000312   STOCK stb + a/+ Fignfi a/J
000596   STOCK T(2;11)30H/+ x AEJ-a Gdf5bp-H/J or A/J-a Gdf5bp-J/J
000970   STOCK T(2;16)28H A/T(2;16)28H a/J
000590   STOCK T(2;4)1Sn a/J
000594   STOCK T(2;8)26H a/T(2;8)26H a Tyrp1+/Tyrp1b/J
000623   TR/DiEiJ
View Strains carrying   a     (102 strains)

Strains carrying other alleles of Qk
005089   B6.Cg-Qkqk-2J/J
View Strains carrying other alleles of Qk     (1 strain)

Strains carrying other alleles of a
003301   (C57BL/6J x C3H-Eya1bor)F1/J
000251   AEJ.Cg-ae +/a Gdf5bp-H/J
000202   AEJ/Gn-bd/J
000199   AEJ/GnLeJ
000427   B10.CE-H13b Aw/(30NX)SnJ
000420   B10.LP-H13b Aw/Sn
000477   B10.PA-Pldnpa H3e at/SnJ
000419   B10.UW-H3b we Pax1un at/SnJ
000593   B6 x B6CBCa Aw-J/A-Grid2Lc T(2;6)7Ca MitfMi-wh/J
000502   B6 x B6CBCa Aw-J/A-Myo5aflr Gnb5flr/J
000599   B6 x B6CBCa Aw-J/A-T(5;13)264Ca KitW-v/J
002083   B6 x B6EiC3 a/A-T(7;16)235Dn/J
000507   B6 x B6EiC3 a/A-Otcspf/J
002016   B6(Cg)-Aw-J EdaTa-6J Chr YB6-Sxr/EiJ
000552   B6-Aw-J-EdaTa-6J.Cg-Sxr
001730   B6-Aw-J-EdaTa-6J.Cg-Sxrb Hya-/J
000841   B6-Aw-J.CBy-EdaTa-By/J
001809   B6-Aw-J.Cg-EdaTa-6J +/+ ArTfm/J
000600   B6-Gpi1b x B6CBCa Aw-J/A-T(7;15)9H Gpi1a/J
000769   B6.C/(HZ18)By-at-44J/J
000203   B6.C3-Aiy/a/J
000017   B6.C3Fe-Avy/J
000628   B6.CE-A Amy1b Amy2b/J
005505   B6.Cg-Ay Slc7a11sut/LmLlp
000021   B6.Cg-Ay/J
001572   B6.Cg-am-J/J
100409   B6129PF1/J-Aw-J/Aw
004200   B6;CBACa Aw-J/A-Npr2cn-2J/J
000505   B6C3 Aw-J/A-Mutedmu/J
000604   B6C3 a/A-T(10;13)199H +/+ Lystbg-J/J or Lystbg-2J/J
000065   B6C3Fe a/a-we Pax1un at/J
000314   B6CBACa Aw-J/A-EdaTa/J-XO
000501   B6CBACa Aw-J/A-Aifm1Hq/J
001046   B6CBACa Aw-J/A-Grid2Lc/J
000500   B6CBACa Aw-J/A-Gs/J
002703   B6CBACa Aw-J/A-Hydinhy3/J
000247   B6CBACa Aw-J/A-Kcnj6wv/J
000287   B6CBACa Aw-J/A-Plp1jp EdaTa/J
000515   B6CBACa Aw-J/A-SfnEr/J
000242   B6CBACa Aw-J/A-spc/J
000288   B6CBACa Aw-J/A-we a Mafbkr/J
001201   B6CBACaF1/J-Aw-J/A
001752   B6CBCa Aw-J/A-T(7;15)9H/J
006450   B6EiC3 a/A-Vss/J
000557   B6EiC3-+ a/LnpUl A/J
000504   B6EiC3Sn a/A-Cacnb4lh/J
000553   B6EiC3Sn a/A-Egfrwa2 Wnt3avt/J
001811   B6EiC3Sn a/A-Otcspf-ash/J
002343   B6EiC3Sn a/A-Otcspf/J
001923   B6EiC3Sn a/A-Ts(417)2Lws Tim/J
000200   C3FeB6 A/Aw-J-Ankank/J
000638   C3FeB6 A/Aw-J-Spnb4qv-J/J
001203   C3FeB6F1/J A/Aw-J
001272   C3H/HeSnJ-Ahvy/J
000099   C3HeB/FeJ-Avy/J
000338   C57BL/6J Aw-J-EdaTa-6J/J
000258   C57BL/6J-Ai/a/J
000774   C57BL/6J-Asy/a/J
000569   C57BL/6J-Aw-J-EdaTa +/+ ArTfm/J
000051   C57BL/6J-Aw-J/J
000055   C57BL/6J-at-33J/J
000070   C57BL/6J-atd/J
002468   KK.Cg-Ay/J
000262   LS/LeJ
000283   LT.CAST-A/J
001759   STOCK A Tyrc Sha/J
001427   STOCK Aw us/J
View Strains carrying other alleles of a     (67 strains)

Research Applications

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

Neurobiology Research
Parkinson's Disease (Park2 (parkin) mutants)

Qkqk related

Apoptosis Research

Cell Biology Research
Cell Cycle Regulation
Protein Processing (degradation)

Neurobiology Research
Epilepsy
Myelination Defects
Neurodegeneration
Parkinson's Disease
Tremor Defects
Vestibular and Hearing Defects

Reproductive Biology Research
Developmental Defects Affecting Gonads (males only)
Fertility Defects (males only)

Sensorineural Research
Vestibular and Hearing Defects

References

Selected Reference(s)

SIDMAN RL; DICKIE MM; APPEL SH. 1964. MUTANT MICE (QUAKING AND JIMPY) WITH DEFICIENT MYELINATION IN THE CENTRAL NERVOUS SYSTEM. Science 144:309-11. [PubMed: 14169723]  [MGI Ref ID J:13141]

Additional References

Price and Supply Information

Strain Name: B6C3Fe a/a-Qkqk/J
Stock Number: 000506

Price Details

IMPORTANT NOTE: Prices are based on shipping destination. The shipping destinations are:

*Pricing for Shipping Destination selected:

        International

Price(s) in US dollars ($)
Cryorecovery Fee $2470.00

Supply Details

Standard SupplyRepository-Cryopreserved. Must Be Recovered. Please refer to pricing and supply notes for further information.
Supply Notes Cryorecovery - Standard.
The recovery process begins when a signed agreement form is returned to the Customer Service Department after order placement. Although results vary by strain, at least two males and two females (two pairs) will be provided, typically within 15 weeks of our receipt of the signed agreement form. If the first recovery attempt is unsuccessful or only one pair is recovered, a second recovery will be done, extending the delivery time to approximately 25 weeks. At least one member of each pair will be of known genotype and will carry the mutation if it is a mutant strain. Please note that pairs may not reflect the mating scheme utilized by The Jackson Laboratory prior to cryopreservation of the strain. Mating schemes are sometimes modified for successful cryopreservation. Price represents a repository maintenance fee, which includes the cost of recovery of the strain from the cryopreservation resource and the periodic replacement of the frozen embryos used for recovery.

Cryorecovery to establish a Dedicated Supply for greater quantities of mice.
One to two pairs will be recovered to establish a Dedicated Supply of mice. Price by quotation. For more information on Dedicated Supply, please contact JAX® Services, Tel: 1-800-422-6423 or 1-207-288-5845.
This strain is included in the Mouse Mutant Resource collection.
Genomic DNA is available for this strain from the Mouse DNA Resource.

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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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