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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Lipetm1Ishi
targeted mutation 1, Shun Ishibashi
MGI:2181610
Summary 5 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Lipetm1Ishi/Lipetm1Ishi B6.129S7-Lipetm1Ishi MGI:4359431
hm2
Lipetm1Ishi/Lipetm1Ishi involves: 129S7/SvEvBrd * C57BL/6 MGI:2663772
cx3
Lipetm1Ishi/Lipetm1Ishi
Nceh1tm1Ishi/Nceh1tm1Ishi
B6.129S7-Nceh1tm1Ishi Lipetm1Ishi MGI:4359428
cx4
Ldlrtm1Her/Ldlrtm1Her
Lipetm1Ishi/Lipetm1Ishi
involves: 129S7/SvEvBrd * C57BL/6J MGI:4359433
cx5
Ldlrtm1Her/Ldlrtm1Her
Lipetm1Ishi/Lipetm1Ishi
Nceh1tm1Ishi/Nceh1tm1Ishi
involves: 129S7/SvEvBrd * C57BL/6J MGI:4359435


Genotype
MGI:4359431
hm1
Allelic
Composition
Lipetm1Ishi/Lipetm1Ishi
Genetic
Background
B6.129S7-Lipetm1Ishi
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lipetm1Ishi mutation (1 available); any Lipe mutation (37 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• following exposure to acLDL, intracellular cholesterol ester levels in macrophages are increased 51% compared to in wild-type mice




Genotype
MGI:2663772
hm2
Allelic
Composition
Lipetm1Ishi/Lipetm1Ishi
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lipetm1Ishi mutation (1 available); any Lipe mutation (37 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Lipetm1Ishi/Lipetm1Ishi males exhibit oligospermia and seminiferous tubule defects

cellular

reproductive system
• testes lack neutral cholesterol ester hydrolase activities and contain 2.3-fold increase in cholesterol ester content
• thickness of the epithelial layers of seminiferous tubules is reduced from 12 to 5-7 layers
• extensive vacuolation is observed in the epithelial cells

adipose tissue
• cellular hypertrophy of brown adipose tissue, with a 1.65-fold enlargement of brown adipose tissue
• median cytoplasmic area of brown adipose tissue adipoctyes is increased by about 5-fold
• triacylglycerol content is increased in brown adipose tissue
• enlarged brown (5-fold) and white (2-fold) adipocytes
• cellular hypertrophy of white adipose tissue, but to a lesser extent than seen in brown adipose tissue, with median cytoplasmic area enlarged by 2-fold
• WAT expresses 40% lower activities of triacylglycerol lipase in the presence of 1 M NaCl (to selectively inhibit lipoprotein lipase)
• adipocytes isolated from WAT release reduced amounts of glycerol and free fatty acids into the incubation media

endocrine/exocrine glands
• testes lack neutral cholesterol ester hydrolase activities and contain 2.3-fold increase in cholesterol ester content
• thickness of the epithelial layers of seminiferous tubules is reduced from 12 to 5-7 layers
• extensive vacuolation is observed in the epithelial cells

homeostasis/metabolism
• triacylglycerol content is increased in brown adipose tissue
• testes, brown adipose tissue, and white adipose tissue completely lack neutral cholesterol ester hydrolase activities

growth/size/body
N
• despite adipocyte abnormalities, mutants are not obese




Genotype
MGI:4359428
cx3
Allelic
Composition
Lipetm1Ishi/Lipetm1Ishi
Nceh1tm1Ishi/Nceh1tm1Ishi
Genetic
Background
B6.129S7-Nceh1tm1Ishi Lipetm1Ishi
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lipetm1Ishi mutation (1 available); any Lipe mutation (37 available)
Nceh1tm1Ishi mutation (1 available); any Nceh1 mutation (35 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• following exposure to acLDL, intracellular cholesterol ester levels in macrophages are increased 70% compared to in wild-type mice




Genotype
MGI:4359433
cx4
Allelic
Composition
Ldlrtm1Her/Ldlrtm1Her
Lipetm1Ishi/Lipetm1Ishi
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ldlrtm1Her mutation (19 available); any Ldlr mutation (81 available)
Lipetm1Ishi mutation (1 available); any Lipe mutation (37 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• depending on the statistical method, the atherosclerotic lesion surface area is increased 1.2 -to 1.7-fold compared to in Ldlrtm1Her homozygotes




Genotype
MGI:4359435
cx5
Allelic
Composition
Ldlrtm1Her/Ldlrtm1Her
Lipetm1Ishi/Lipetm1Ishi
Nceh1tm1Ishi/Nceh1tm1Ishi
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ldlrtm1Her mutation (19 available); any Ldlr mutation (81 available)
Lipetm1Ishi mutation (1 available); any Lipe mutation (37 available)
Nceh1tm1Ishi mutation (1 available); any Nceh1 mutation (35 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• depending on the statistical method, the atherosclerotic lesion surface area is increased 2.0- to 4.3-fold compared to in Ldlrtm1Her homozygotes





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory