Apob^tm2Sgy
Targeted Allele Detail

Summary

• Symbol: Apob^tm2Sgy
• Name: apolipoprotein B; targeted mutation 2, Stephen G Young
• MGI ID: MGI:1857304
• Synonyms: apo-B¹⁰⁰, ApoB¹⁰⁰, ApoB^100only, ApoB48^-
• Gene: Apob Location: Chr12:8027648-8066835 bp, + strand Genetic Position: Chr12, 3.53 cM
• Alliance: Apob^tm2Sgy page

Mutation origin

• Germline Transmission: Earliest citation of germline transmission: J:33830
• Parent Cell Line: AB1 (ES Cell)
• Strain of Origin: 129S7/SvEvBrd-Hprt1⁺

Mutation description

• Allele Type: Targeted (Null/knockout)
• Mutation: Nucleotide substitutions
• Mutation details: A "hit and run"-type vector was used to create a CTA to TTA mutation in codon 2179 (codon 2153 in the original publication) in sequences corresponding to the apo-B48 editing codon. Western blot analysis on plasma derived from heterozygous and homozygous mice demostrated that the expression of the ApoB100 isoform is unaffected by this mutation, while no ApoB48 isoform is produced from this allele. (J:33830)

Disease models

Expression

In Mice Carrying this Mutation:	2 RNA-Seq or microarray experiment(s)
In Structures Affected by this Mutation:	1 anatomical structure(s)

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
• Carrying any Apob Mutation: 221 strains or lines available

Notes

Levels of LDL-cholesterol, VLDL, and triglyceride LDL are higher relative to wild-type mice in APOB100 only mice in the presence of wild-type APOE production. In the presence of genetic APOE deficiency, APOB100 only mice have lowered cholesterol levels (J:33830).

Phenotypic Similarity to Human Syndrome: Calcific Aortic Valve Disease J:227165 in mice homozygous for Apob^tm2Sgy and Ldlr^tm1Her and carrying the Tg(Ins-Igf2)1Fbos transgene.

References

• Original: J:33830 Farese RVJr, et al., Phenotypic analysis of mice expressing exclusively apolipoprotein B48 or apolipoprotein B100. Proc Natl Acad Sci U S A. 1996 Jun 25;93(13):6393-8
• All: 69 reference(s)