Homozygous phenotype: Homozygote phenotype is expected to be similar to hemizygote phenotype.
Hemizygous phenotype: These transgenic mice express neuronally derived human amyloid beta-precursor protein, APP gene, 770 isoform, containing the Swedish K670N/M671L, Dutch E693Q and Iowa D694N mutations, under the control of the mouse thymus cell antigen 1, theta, Thy1, promoter. Mice hemizygous for the transgenic insert exhibit expression of human amyloid beta precursor protein in the cortex, hippocampus and brain stem with lower expression detected in the cerebellum. At age three months hemizygotes show a progressive accumulation of insoluble amyloid beta 40 and 42 peptides in brain tissue. The levels of accumulation of amyloid beta peptides is 12 to 14 fold higher in brain microvessels than in whole forebrain tissue homogenates. Fibrillar microvascular accumulations of amyloid beta peptides begin at approximately six months of age. Diffuse plaque-like deposits of amyloid beta that are similar to the plaques observed in human patients with the Dutch and Iowa familial disorders are initially detected at approximately 3 months of age in the subiculum, hippocampus and cortex. After six months of age the diffuse plaque-like deposits increase in number and spread to the olfactory bulb and thalamic region. Amyloid beta deposits are detected throughout the forebrain by 12 months of age. The donating investigator has made the strain homozygous and reports that mice homozygous for the transgenic insert are viable and fertile. This mutant mouse strain may be useful in studies of Alzheimer's disease and cerebral amyloid angiopathy.
Strain of Origin: C57BL/6
Strain genetic background: C57BL/6
Strain Development: A transgenic construct containing 2.1kb of the human amyloid beta-precursor protein, APP gene, 770 isoform, with the Swedish K670N/M671L, Dutch E693Q and Iowa D694N mutations, under the control of the mouse thymus cell antigen 1, theta, Thy1, promoter was injected into fertilized C57BL/6 mouse eggs. Founder line B was subsequently established and homozygotes generated.
A 32 SNP (single nucleotide polymorphism) panel analysis, with 27 markers covering all 19 chromosomes and the X chromosome, as well as 5 markers that distinguish between the C57BL/6J and C57BL/6N substrains, was performed on the rederived living colony at The Repository. While the 27 markers throughout the genome suggested a C57BL/6 genetic background, 3 of 5 markers that determine C57BL/6J from C57BL/6N were found to be C57BL/6N. These data suggest the mice sent to The Jackson Laboratory Repository were on a mixed C57BL/6J ; C57BL/6N genetic background.
Suggested Control Mice: Wild-ype littermates
Donor: William Van Nostrand, Ph.D., Stony Brook University
Davis J; Xu F; Deane R; Romanov G; Previti ML; Zeigler K; Zlokovic BV; Van Nostrand WE, Early-onset and robust cerebral microvascular accumulation of amyloid beta-protein in transgenic mice expressing low levels of a vasculotropic Dutch/Iowa mutant form of amyloid beta-protein precursor., J Biol Chem 2004 May 7;279(19):20296-306 (Medline PMID: 14985348)
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 email@example.com for more details.
Fee/unit (US $)
|Per Mouse||The firstname.lastname@example.org may assess additional fees for any special requests (e.g., specific age or weight of mice, etc.).|
1 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.
2 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.
3 An aliquot contains a sufficient number of embryos (in one or more vials and based on the transfer success rate of the MMRRC facility) to transfer to at least two recipients. The MMRRC makes no guarantee concerning embryo transfer success experienced in the recipient investigator's laboratory. Neither gender nor genotype ratios are guaranteed.
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.