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Strain Information

Name: angiotensin I converting enzyme (peptidyl-dipeptidase A) 2; targeted mutation 1c, Wellcome Trust Sanger Institute
Synonyms: Ace2flox
Type: Allele
Species: Mus musculus (mouse)
Chromosome: X
Alteration at locus: Conditional
Name: angiotensin I converting enzyme (peptidyl-dipeptidase A) 2
Synonyms: 2010305L05Rik
Type: Gene
Species: Mus musculus (mouse)
Chromosome: X
Alteration at locus: Conditional
NCBI: 70008
Homologene: 41448
Genetic Alterations
Floxed Ace2 allele.
Genotype Determination
ES Cell Line
The Ace2 gene is floxed. The phenotype depends on the Cre recombinase used. For example, deletion in lung epithelial cells of active ACE2 led to excessive neutrophil accumulation in mouse lungs subjected to bacterial infection, resulting in a hyperinflammatory response and lung damage.

These mice are potentially useful for COVID-19 research.
MeSH Terms
  • ADAM17 Protein/metabolism
  • Angiotensin II/pharmacology
  • Animals
  • Autonomic Nervous System/drug effects
  • Autonomic Nervous System/physiopathology
  • Disease Models, Animal
  • Enzyme Activation/drug effects
  • GABAergic Neurons/metabolism
  • GABAergic Neurons/physiology
  • Hypertension/drug therapy
  • Hypertension/physiopathology
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Optogenetics/methods
  • Paraventricular Hypothalamic Nucleus/drug effects
  • Paraventricular Hypothalamic Nucleus/metabolism
  • Paraventricular Hypothalamic Nucleus/pathology
  • Peptidyl-Dipeptidase A/metabolism
  • Random Allocation
  • Renin-Angiotensin System/drug effects
  • Renin-Angiotensin System/genetics
Strain Development

Targeted JM8A3.N1 embryonic stem cells (C57BL/6N-derived) heterozygous for the targeted mutation, clone EPD0613_4_G07 were ordered from the Knockout Mouse Project (KOMP, project ID:79596, UC Davis, CA, USA). Chimeras were bred to albino B6. Subsequent breeding to an Flp deleter strain of unknown genetic background (Bap-flp) removed the frt-pgk-neo-frt sequences. Backcross to C57BL/6J for more than 10 generations.

Suggested Control 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 Older strains may not have this information.
  • Cardiovascular
  • Cell Biology
  • Diabetes
  • Immunology and Inflammation
  • Metabolism
  • Models for Human Disease
  • Neurobiology
  • Obesity
  • Research Tools
  • Virology
Eric Lazartigues, Ph.D., LSUHSC-NO.
Primary Reference

Mukerjee S, Gao H, Xu J, Sato R, Zsombok A, Lazartigues E. ACE2 and ADAM17Interaction Regulates the Activity of Presympathetic Neurons. Hypertension. 2019 Nov;74(5):1181-1191. doi: 10.1161/HYPERTENSIONAHA.119.13133. Epub 2019 Sep 30.(Medline PMID: 31564162)

Colony and Husbandry Information

Colony's Current Health Status Report

For more information about this colony's health status contact
Coat Color
MMRRC Breeding System
Backcross and sib-mating
N10+ (C57BL/6J), F10+
Overall Breeding Performance
NOTE: "Hemizygote" as used here refers to males carrying a mutation on the X Chromosome or mice of either sex carrying an inserted transgene with no homologous allele on the other chromosome.
Viability and Fertility: Female Male Comments
Homozygotes are viable: Undetermined Undetermined
Homozygotes are fertile: Undetermined Undetermined
Hetero/Hemizygotes are fertile: Undetermined Undetermined
Age Reproductive Decline: Undetermined Undetermined
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 for more details.

Cryopreserved material may be available upon request, please inquire to 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.

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MMRRC Item # Description Distribution Fee / Unit (US $)
*Shipping & Handling not included*
Units Notes
Heterozygous / Hemizygous Female
Heterozygous / Hemizygous Male
$272.50 / Non-Profit Per Mouse The may assess additional fees for any special requests (e.g., specific age or weight of mice, etc.).
066973-UCD-EMBRYO Cryo-preserved embryos $1,038.00 / Non-Profit Aliquot Approximate quantity2 : 20-40 embryos / aliquot
066973-UCD-SPERM Cryo-preserved spermatozoa $546.25 / Non-Profit Aliquot Approximate quantity3

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.

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.