Pparg^tm1Rev
Targeted Allele Detail

Summary

• Symbol: Pparg^tm1Rev
• Name: peroxisome proliferator activated receptor gamma; targeted mutation 1, Ronald M Evans
• MGI ID: MGI:2149838
• Synonyms: Pparg^-, PPARg-
• Gene: Pparg Location: Chr6:115337912-115467360 bp, + strand Genetic Position: Chr6, 53.41 cM, cytoband E3-F1
• Alliance: Pparg^tm1Rev page

Mutation origin

• Germline Transmission: Earliest citation of germline transmission: J:58223
• Parent Cell Line: J1 (ES Cell)
• Strain of Origin: 129S4/SvJae

Mutation description

• Allele Type: Targeted (Null/knockout, Reporter)
• Mutation: Insertion
• Mutation details: In-frame insertion of a lac Z-neomycin resistance cassette into the second coding exon of the gene, just upstream of the DNA binding domain, eliminated both DNA-binding and ligand-binding functions of the receptor. Whole-mount beta-galactosidase assays revealed conspicuous beta-gal activivity in the interscapular brown fat pad of only E14.5 embryos carrying a targeted allele, but not in wild-type embryos (J:58223)

Disease models

Expression

In Structures Affected by this Mutation:

8 anatomical structure(s)

Find Mice (IMSR)

• Mouse strains and cell lines available from the International Mouse Strain Resource (IMSR)
• Carrying this Mutation: Mouse Strains: 1 strain available Cell Lines: 0 lines available
• Carrying any Pparg Mutation: 41 strains or lines available

Notes

Complementation of Pparg^tm1Rev mutant embryos with wild-type placenta by tetraploid aggregation corrects the cardiac defect and extends viability to E12.5 (two mutants out of a total five), E15.5 (one out of ten) and at birth (one of six). Rescued embryos survive to term but exhibit a second lethal phase during the first week of life. Additional phenotypes include: a 30% reduction in body weight (P0-P4) and subsequent ill health (as shown by dehydration, weight loss and lethargy starting at P5) associated with lipodystrophy, a severly pale, distended and fatty liver, severe intestinal bleeding, and numerous focal hematomas throughout the brain (J:58223).

References

• Original: J:58223 Barak Y, et al., PPAR gamma is required for placental, cardiac, and adipose tissue development. Mol Cell. 1999 Oct;4(4):585-95
• All: 18 reference(s)