Summary |
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Variant origin |
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Variant description |
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Phenotypes |
View phenotypes and curated references for all genotypes (concatenated display).
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Expression |
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Notes |
Mapping and Phenotype information for this QTL, its variants and associated markersJ:5432295 microsatellite markers at an average density of 14.4-16.5 cM were used to map loci affecting obesity-associated plasma lipid concentrations in 190 (C57BL/6J x KK-Ay)F2 animals. KK-Ay animals develop severe obesity and elevated plasma lipid concentrations while C57BL/6J remain lean with lower lipid levels. F2 animals of genotype a/a at the agouti locus have an intermediate plasma cholesterol phenotype while F2 animals of genotype Ay/a have a plasma cholesterol phenotype resembling the KK-Ay parental strain. Three QTLs involved in plasma cholesterol concentrations were identified: Cq1 (LOD = 4.6) and Cq2 (LOD = 5) are linked to D1Mit425 and D1Mit150, respectively, on mouse chromosome 1, and Cq3 (LOD = 4.3) is linked to D3Mit102 on chromosome 3. Cq2 in linkage with D1Mit150 maps to within 1.1 cM of the Apoa2 locus. Sequencing of Apoa2 cDNA in C57BL/6J and KK revealed 7 nucleotide substitutions (resulting in 3 amino acid substitutions) within the open reading frame. Nq1 (LOD = 4.3), a QTL involved in plasma NEFA (non-esterified fatty acids) concentrations, mapped to chromosome 9 in association with D9Mit353. |
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References |
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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO) |
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last database update 11/12/2024 MGI 6.24 |
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