Strain Name:
B6J.129X1-Anxa2tm1Kah/Mmmh
Stock Number:
069702-MU
Citation ID:
RRID:MMRRC_069702-MU
Other Names:
Annexin A2 knock-out mice (A2KO or Anxa-/-)

Strain Information

Anxa2tm1Kah
Name: annexin A2; targeted mutation 1, Katherine A Hajjar
Synonyms: Anxa2-, A2-
Type: Allele
Species: Mus musculus (mouse)
Chromosome: 9
Alteration at locus: Knockout
Anxa2
Name: annexin A2
Synonyms: 36-kDa calelectrin, Cal1h, annexin II, lipocortin II
Type: Gene
Species: Mouse
Chromosome: 9
Alteration at locus: Knockout
NCBI: 12306
Homologene: 20857
Genetic Alterations
The development of the Anxa2 targeting vector started with selectable neomycin-resistance (Neor) and thymidine kinase (TK) genes within the plasmid pPNT. Two mouse cDNA probes specific for exons 2 and 3, containing the translation start site, and for exon 5 were used to isolate two fragments encoding exons 1–4 and exons 2–5. A 2.2-kb fragment located 5′ of exon 3 and a second 4-kb fragment located 3′ of exon 4 were isolated and then subcloned into the pPNT plasmid opposite to that of the Neor cassette. The integrity of the targeting vector was verified by sequencing and the construct was introduced into 129/SvJ ES cells by electroporation.
ES Cell Line
Not specified
Phenotype

These mice exhibit a normal outward appearance. The donating investigator indicates that when histologically analyzed, it appears that, "fibrin accumulation is observed in microvessels of all organs and tissues, and there is a slight (10%) decrease in body weight upon maturity." Additionally, it was observed that mental uneasiness/stress has the ability to:

  • Reduce the ability to clear injury-induced arterial thrombi
  • Create defects in angiogenesis in multiple in vivo model systems
  • Develop pulmonary edema after being exposed to a hypoxic environment for 48 hours
MeSH Terms
  • Animals
  • Annexin A2/deficiency
  • Annexin A2/genetics
  • Annexin A2/physiology
  • Aorta
  • Cell Movement/physiology
  • Cells, Cultured
  • Collagen/physiology
  • Endothelium, Vascular/physiology
  • Fibrin/metabolism
  • Homeostasis
  • Kinetics
  • Matrix Metalloproteinases/metabolism
  • Mice
  • Mice, Knockout
  • Muscle, Smooth, Vascular/physiology
  • Neovascularization, Pathologic/genetics
  • Organ Specificity
  • Vascular Endothelial Growth Factor A/physiology
  • Annexin A2/metabolism
  • Annexin A2/pharmacology
  • Cell Movement/drug effects
  • Corneal Neovascularization/physiopathology
  • Diet
  • Endothelial Cells/cytology
  • Endothelial Cells/drug effects
  • Fibrinolysis/drug effects
  • Fibrinolysis/physiology
  • Homocysteine/metabolism
  • Homocysteine/pharmacology
  • Hyperhomocysteinemia/physiopathology
  • Male
  • Methionine/administration & dosage
  • Mice, Inbred C57BL
  • Neovascularization, Physiologic/drug effects
  • Neovascularization, Physiologic/physiology
  • Recombinant Proteins/pharmacology
Strain Development
The integrity of the above-mentioned targeting vector was verified by sequencing and the construct was introduced into 129/SvJ ES cells by electroporation ES clones selected by resistance to G418 and gancyclovir were screened by Southern blot hybridization. Clones containing the disrupted Anxa2 allele were microinjected into blastocysts and implanted into the uteri of C57BL/6J pseudopregnant female mice. Subsequent offspring correctly identified with an agouti coat color were then backcrossed to C57BL/6J mice for over 10 generations.
Suggested Control Mice
C57BL/6J
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
  • Developmental Biology
  • Hematology
Donor
Katherine A. Hajjar, M.D., Cornell University Weill Cornell Medical College.
Primary Reference

Ling Q, Jacovina AT, Deora A, Febbraio M, Simantov R, Silverstein RL, Hempstead B, Mark WH, Hajjar KA. Annexin II regulates fibrin homeostasis and neoangiogenesis in vivo. J Clin Invest. 2004 Jan;113(1):38-48. doi: 10.1172/JCI19684. (Medline PMID: 14702107)

Jacovina AT, Deora AB, Ling Q, Broekman MJ, Almeida D, Greenberg CB, Marcus AJ, Smith JD, Hajjar KA. Homocysteine inhibits neoangiogenesis in mice through blockade of annexin A2-dependent fibrinolysis. J Clin Invest. 2009 Nov;119(11):3384-94. doi: 10.1172/JCI39591. Epub 2009 Oct 19. (Medline PMID: 19841537)

Colony and Husbandry Information

Colony Surveillance Program and Current Health Reports

For more information about this colony's health status contact mmrrc@missouri.edu
Coat Color
Black
Eye
Black
MMRRC Breeding System
Sib-mating
Generation
N = 10+
Overall Breeding Performance
Excellent
Viability and Fertility: Female Male Comments
Homozygotes are viable: Yes Yes
Homozygotes are fertile: Yes Yes
Heterozygotes are fertile: Yes Yes
Age Reproductive Decline: 10 to 12 months Greater than 12 months
Average litter size
7 to 9
Recommended wean age
3 Weeks
Average Pups Weaned
7 to 9

Order Request Information

Limited quantities of breeder mice (up to 2 males and 2 females or 4 mice) per investigator per month are available from a live colony, usually available to ship in under 12 weeks. Larger quantities may be available, please contact the distributing center directly at mmrrc@missouri.edu for more details.

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

A Commercial License Agreement from the Donor is required for for-profit entities to use this strain. For more information, please contact Brian J. Kelly.

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.

A Commercial License Agreement from the Donor is required for for-profit entities to use this strain. For more information, please contact Brian J. Kelly

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
069702-MU-HET-F
069702-MU-HET-M
Heterozygous / Hemizygous Female
Heterozygous / Hemizygous Male
$290.00 / $590.00
Non-Profit / For-Profit
Per Mouse The mmrrc@missouri.edu may assess additional fees for any special requests (e.g., specific age or weight of mice, etc.).
069702-MU-EMBRYO Cryo-preserved embryos $1,038.00 / $2,621.00
Non-Profit / For-Profit
Aliquot Approximate quantity2 : 20-40 embryos / aliquot
069702-MU-SPERM Cryo-preserved spermatozoa $437.00 / $817.00
Non-Profit / For-Profit
Aliquot Approximate quantity3

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.