About   Help   FAQ
Transgene Detail
Symbol: Tg(APPSw)40Btla
Name: transgene insertion 40, Bruce Lamb
MGI ID: MGI:3510594
Synonyms: APPK670/M671, APPK670N/M671L, R1.40, R1.40-YAC, Tg(APP*Swe)40Btla
Transgene: Tg(APPSw)40Btla  Location: unknown  Genetic Position: Chr13, Syntenic
Germline Transmission:  Earliest citation of germline transmission: J:42613
Parent Cell Line:  R1 (ES Cell)
Strain of Origin:  (129X1/SvJ x 129S1/Sv)F1-Kitl+
Transgene Type:    Transgenic (Humanized sequence, Inserted expressed sequence)
Mutation:    Insertion
Tg(APPSw)40Btla expresses 1 gene
Mutation detailsThe transgenic insertion comprises four to eight copies of a 650-kb YAC containing the entire 400-kb human amyloid precursor protein gene with the Swiss familial Alzheimer disease (FAD) mutation and approximately 250 kb of flanking human DNA. The double mutation (K670N/M671N) comprises a G-to-A transition converting the lysine codon at position 670 to an asparagine codon and an A-to-C transversion replacing the methionine at amino acid 671 with leucine. RT-PCR and western blot analysis revealed that hemizygous transgenic mice express all major human APP mRNA and protein isoforms in brain, in parallel with the corresponding mouse versions, at approximately three times the levels of the latter. Total brain levels of the Alzheimer disease- associated 42-amino acid amyloid-beta peptide detected by ELISA are 7-8-fold and 15-20-fold higher, respectively, in mice hemizygous and homozygous for the mutant gene than in hemizygotes for the wildtype human gene. Levels of a cell-associated, beta-secretase-generated 13.5 kDa C-terminal peptide containing the amyloid beta domain and of soluble amyloid beta peptides are significantly elevated in brains of mice with the mutant, versus wildtype, transgene, while alpha-secretase products are diminished. (J:42613, J:58050, J:73622)
View phenotypes and curated references for all genotypes (concatenated display).
Disease models
Find Mice (IMSR)
Mouse strains and cell lines available from the International Mouse Strain Resource (IMSR)
Carrying this Mutation:  Mouse Strains: 4 strains available      Cell Lines: 0 lines available
Original:  J:42613 Lamb BT, et al., Altered metabolism of familial Alzheimer's disease-linked amyloid precursor protein variants in yeast artificial chromosome transgenic mice. Hum Mol Genet. 1997 Sep;6(9):1535-41
All:  20 reference(s)

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB), Gene Ontology (GO)
Citing These Resources
Funding Information
Warranty Disclaimer & Copyright Notice
Send questions and comments to User Support.
last database update
MGI 6.17
The Jackson Laboratory