Strain Name:
129S7-Gnai2tm1Lbi/Mmmh
Stock Number:
037337-MU
Citation ID:
RRID:MMRRC_037337-MU
Other Names:
Galpha-i2 KO

Strain Information

Gnai2tm1Lbi
Name: G protein subunit alpha i2; targeted mutation 1, Lutz Birnbaumer
Synonyms: alphai2-, Galphai2-KO, Galphai2-, Gai2-, Gnao1.2tm1LBi, Gnai2-, Gnai2tm1Uru
Type: Allele
Species: Mus musculus (mouse)
Chromosome: 9
Alteration at locus: Knockout
Gnai2
Name: G protein subunit alpha i2
Synonyms: Gia, Gnai-2, Galphai2
Type: Gene
Species: Mouse
Chromosome: 9
Alteration at locus: Knockout
NCBI: 14678
HGNC: HGNC:4385
Homologene: 55539
Genetic Alterations
A neomycin resistance cassette was inserted into exon 3. The truncated protein is predicted to be inactive and also lack the cysteine at position 352 which is ADP-ribosylated by pertussis toxin. 
Genotype Determination
ES Cell Line
AB1 derived from 129S7/SvEvBrd-Hprt+
Phenotype

Homozygous: The homozygotes develop ulcerative colitis and adenocarcinoma of the colon and do not reproduce.

Heterozygous: No observable phenotype.

Mammalian Phenotype Terms
Allelic Composition: Gnai2tm1Lbi/Gnai2tm1Lbi (Genetic Background: 129X1Bom.129S7-Gnai2tm1Lbi )

Allelic Composition: Gnai2tm1Lbi/Gnai2tm1Lbi (Genetic Background: B6.129S7-Gnai2tm1Lbi )

Allelic Composition: Gnai2tm1Lbi/Gnai2tm1Lbi (Genetic Background: either: 129/Sv or (involves: 129S7/SvEvBrd * C57BL/6J) )

Allelic Composition: Gnai2tm1Lbi/Gnai2tm1Lbi (Genetic Background: involves: 129S7/SvEvBrd )

Allelic Composition: Gnai2tm1Lbi/Gnai2tm1Lbi (Genetic Background: involves: 129S7/SvEvBrd * C57BL/6 )

Allelic Composition: Gnai2tm1Lbi/Gnai2tm1Lbi (Genetic Background: involves: 129S7/SvEvBrd * C57BL/6J )

MeSH Terms
  • Adenocarcinoma/genetics
  • Adenocarcinoma/immunology
  • Adenocarcinoma/pathology
  • Amino Acid Sequence
  • Animals
  • Antigens, CD/analysis
  • Base Sequence
  • Chromosome Mapping
  • Colitis, Ulcerative/genetics
  • Colitis, Ulcerative/immunology
  • Colitis, Ulcerative/pathology
  • Colonic Neoplasms/genetics
  • Colonic Neoplasms/immunology
  • Colonic Neoplasms/pathology
  • Cytokines/analysis
  • Female
  • GTP-Binding Protein alpha Subunit, Gi2
  • GTP-Binding Protein alpha Subunits, Gi-Go
  • GTP-Binding Proteins/genetics
  • Genes, Lethal
  • Homozygote
  • Immunoglobulins/analysis
  • Lymphocytes/immunology
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Mice, Inbred Strains
  • Models, Genetic
  • Molecular Sequence Data
  • Proto-Oncogene Proteins/genetics
  • Specific Pathogen-Free Organisms/genetics
  • Specific Pathogen-Free Organisms/physiology
  • Spleen/immunology
  • Thymus Gland/immunology
Strain Development
Correctly targeted AB1 ES cells derived from 129S7/SvEvBrd-Hprt+ were injected into blastocysts to generate chimeric mice. Male chimeric mice were bred to 129S7/SvEv females in order to get an inbred colony. The colony has been maintained by breeding heterozygotes as the homozygotes are not fertile.
Suggested Control Mice
Wild-type littermates or 129S1/SvImJ (approximate) mice
MMRRC Genetic QC Summary
The MMRRC Centers have developed a genetic QC pipeline using MiniMUGA array genotyping to provide additional information on strain backgrounds for MMRRC congenic and inbred strains. For more information on when data may be available, or to request genotyping for a strain of interest, please contact mmrrc@missouri.edu. Older strains may not have this information.
  • Cancer
  • Cardiovascular
  • Cell Biology
  • Dermatology
  • Developmental Biology
  • Diabetes
  • Endocrine Deficiency
  • Hematology
  • Immunology and Inflammation
  • Internal Organ
  • Metabolism
  • Models for Human Disease
    • Ulcerative Colitis
    • Adenocarcinoma of the colon
  • Neurobiology
  • Obesity
  • Reproduction
  • Research Tools
  • Sensorineural
Donor
Lutz Birnbaumer, Ph.D., National Institute of Environmental Health Sciences.
Primary Reference

Rudolph U, Finegold MJ, Rich SS, Harriman GR, Srinivasan Y, Brabet P, Boulay G, Bradley A, Birnbaumer L. Ulcerative colitis and adenocarcinoma of the colon in G alpha i2-deficient mice. Nat Genet. 1995 Jun;10(2):143-50. (Medline PMID:7663509)

Colony and Husbandry Information

Colony Surveillance Program and Current Health Reports

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@missouri.edu.
Coat Color
Agouti
Eye
Black
MMRRC Breeding System
Sib-mating
Breeding Scheme(s)

Wild-type female x Heterozygous male littermate or reciprocal mating

Overall Breeding Performance
Good
Viability and Fertility: Female Male Comments
Homozygotes are viable: Yes Yes
Homozygotes are fertile: No Undetermined
Heterozygotes are fertile: Yes Yes
Age Reproductive Decline: Undetermined Undetermined
Bred to Homozygosity
No
Average litter size
4-6
Recommended wean age
3 weeks
Average Pups Weaned
4-6

Order Request Information

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

Cryopreserved material may be available upon request, please inquire to mmrrc@missouri.edu for more information.

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.

The donor or their institution limits the distribution to non-profit institutions only.

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 $)
*Shipping & Handling not included*
Units Notes
037337-MU-EMBRYO Cryo-preserved embryos $1,038.00 / Non-Profit Aliquot Approximate quantity2 : 20-40 embryos / aliquot
037337-MU-RESUS Litter recovered from cryo-archive $2,016.00 / Non-Profit Litter Recovered litter4; additional fees for any special requests.
Cryopreserved material may be available upon request, please inquire to mmrrc@missouri.edu for more information.

Some MMRRC strains were submitted by the donor as cryopreserved germplasm, and because these strains were not cryopreserved by the MMRRC, we have not assessed the quality, nor genotype, of this material. Our expertise in reviving mice from various qualities of frozen sperm and embryos, using methods like IVF and ICSI, gives us confidence in successful recoveries in most cases. However, due to the uncertain quality of these samples, we'll limit revival attempts to two per order. Additional attempts are available for a fee, on top of standard charges, if requested. It's important to note that some strains may lack the expected mutation, so we can't assure successful order fulfillment until we attempt to revive the strain.

1 The distribution fee covers the expense of rederiving mice from a live mouse; 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 contains a sufficient number of embryos (in one or more vials or straws and based on the transfer success rate of the MMRRC facility) to transfer into one to three recipients. The MMRRC makes no guarantee concerning embryo transfer success experienced in the recipient investigator's laboratory. Neither gender nor genotype ratios are guaranteed.

3 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.

4 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.

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.