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Strain Name:

C.Cg-Cd19tm1(cre)Cgn Ighb/J

Stock Number:

004126

Availability:

Repository- Live


Price and Supply Information

General Terms and Conditions

Former Name      C.129P2-Cd19tm1(cre)Cgn/J    (Changed: 02-SEP-08 )
Genes & Alleles   Cd19;   Cd19tm1(cre)Cgn;   Igh;   cre;   ;


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 Robert Rickert,   The Burnham Institute
GenerationN13F?+13 (06-DEC-07)

Strain Description
The Cd19 promoter specifically directs expression at the earliest stages and throughout B-lymphocyte development and differentiation. A Cre cassette is inserted into the Cd19 exon 2, functionally disrupting the gene. Homozygous mice are Cd19-deficient, whereas heterozygous mice are phenotypically normal and can be used for specific deletion of floxed targets in B-lymphocytes. Mice that are homozygous deficient for Cd19 are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. A deficiency in the B-1 subset of B-lymphocytes is observed along with a concomitant reduction in serum IgM. Homozygous mice are severely impaired in their ability to respond to T-cell-dependent antigens and fail to form splenic germinal centers.

Strain Development
A targeting vector containing Cre recombinase, rabbit beta-globin intron /poly A signal sequence, and an FRT-flanked neomycin resistance gene, was used to disrupt exon 2 of the Cd19 gene. Herpes simplex virus thymidine kinase gene was placed 3' of the Cd19 sequence to allow for the selection against random integration. The construct was transfected into 129P2/OlaHsd-derived E14-1 embryonic stem cells. Correctly targeted ES cells were injected into 129/Sv blastocysts. This strain was backrossed to C.BKa-Ighb/IcrSmnJ (commonly known as C.B-17) for a minimum of 13 generations before being made homozygous.

Mammalian Phenotype Terms assigned by genotype

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

Cd19tm1(cre)Cgn/Cd19tm1(cre)Cgn

        involves: 129P2/OlaHsd
  • hematopoietic system phenotype
  • abnormal B cell differentiation (MGI Ref ID J:27463)
  • absent spleen germinal center (MGI Ref ID J:27463)
    • failure of germinal center formation
  • decreased B-1 B cell number (MGI Ref ID J:27463)
    • reduced numbers of B1 cells (cd23-, IgM hi, IgD lo)
  • immune system phenotype
  • abnormal B cell differentiation (MGI Ref ID J:27463)
  • abnormal B cell physiology (MGI Ref ID J:27463)
    • impaired Cd19-/- B cell response to T cell dependent antigens
    • abnormal immunoglobulin level (MGI Ref ID J:27463)
      • failure of affinity maturation of serum antibodies
      • decreased IgM level (MGI Ref ID J:27463)
        • reduction in serum IgM
  • absent spleen germinal center (MGI Ref ID J:27463)
    • failure of germinal center formation
  • decreased B-1 B cell number (MGI Ref ID J:27463)
    • reduced numbers of B1 cells (cd23-, IgM hi, IgD lo)

Gene & Allele Details

Allele Symbol Cd19tm1(cre)Cgn
Allele Name targeted mutation 1, University of Cologne
Common Name(s) CD19-; CD19-Cre; CD19-KO; Cd19Cre; Cd19cre;
Mutation Made By Robert Rickert,   The Burnham Institute
Strain of Origin129P2/OlaHsd
ES Cell Line NameE14.1
ES Cell Line Strain129P2/OlaHsd
Site of ExpressionB cells
Expressed Gene cre, cre recombinase, bacteriophage P1
Cre recombinase is an enzyme derived from the bacteriophage P1 that specifically recognizes loxP sites. Cre has been shown to effectively mediate the excision of DNA located between loxP sites. After the excision event, the DNA ends recombine leaving a single loxP site in place of the intervening sequence.
Gene Symbol and Name Cd19, CD19 antigen
Chromosome 7
Gene Common Name(s) AW495831; B4; MGC109570; MGC12802; expressed sequence AW495831;
Molecular Note In frame insertion of a cre recombinase gene into the first coding exon followed by an frt-flanked neomycin cassette. A frameshift mutation was also introduced into exon 5. This allele expresses cre recombinase specifically in B lineage cells throughout development. [MGI Ref ID J:27463]
Gene Symbol and Name Igh, immunoglobulin heavy chain complex
Chromosome 12

Control Information

  Allele   Control
 Cd19tm1(cre)Cgn  000651 BALB/cJ
 
  Considerations for Choosing Controls
  Control Pricing Information for JAX® GEMM® Strains

Genotyping Protocols

Cd19tm1(cre)Cgn

Colony Maintenance

Diet Information LabDiet® 5K52/5K67

Related Strains

Strains carrying   Cd19tm1(cre)Cgn allele
006785   B6.129P2(C)-Cd19tm1(cre)Cgn/J
View Strains carrying   Cd19tm1(cre)Cgn     (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:

Research Tools
Cre-lox System (Cre Recombinase Expression)
Developmental Biology Research (Cre-lox System)

cre related

Research Tools
Cre-lox System

Cd19tm1(cre)Cgn related

Hematological Research
Hematopoietic Defects

Immunology and Inflammation Research
CD Antigens, Antigen Receptors, and Histocompatibility Markers
Immunodeficiency (B cell defects)

Research Tools
Genetics Research (Mutagenesis and Transgenesis: Cre-lox System)

References

Selected Reference(s)

Rickert RC; Roes J; Rajewsky K. 1997. B lymphocyte-specific, Cre-mediated mutagenesis in mice. Nucleic Acids Res 25(6):1317-8. [PubMed: 9092650]  [MGI Ref ID J:67676]

Additional References

Price and Supply Information

Strain Name: C.Cg-Cd19tm1(cre)Cgn Ighb/J
Stock Number: 004126

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 ($)Genotype(s) Provided
Individual Mouse Price $139.70Homozygous for Cd19tm1(cre)Cgn
Pair $279.30Homozygous for Cd19tm1(cre)Cgn x Homozygous for Cd19tm1(cre)Cgn

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 Histology and Tissue Collection Services are available for all JAX® Mice strains. For more information, please contact Customer Service at orderquest@jax.org or 1-207-288-5845.
Usually shipped between four and eight weeks of age.
This strain is included in the Induced Mutant Resource Colony collection.
Genomic DNA is available for this strain from the Mouse DNA Resource.
LicensingSee General Terms and Conditions below for Licensing and Use Restrictions  
Control InformationView Control Information in Strain Details.
View Control Pricing Information for JAX® Strains.

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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