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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Scd1tm2Ntam
targeted mutation 2, James M Ntambi
MGI:3773308
Summary 2 genotypes


Genotype
MGI:7287840
cn1
Allelic
Composition
Scd1tm2Ntam/Scd1tm2Ntam
Lrig1tm1.1(cre/ERT2)Rjc/Lrig1+
Genetic
Background
B6.129(Cg)-Lrig1tm1.1(cre/ERT2)Rjc Scd1tm2Ntam
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lrig1tm1.1(cre/ERT2)Rjc mutation (1 available); any Lrig1 mutation (50 available)
Scd1tm2Ntam mutation (0 available); any Scd1 mutation (24 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• decreased hair shaft
• loss of dermal papilla cells




Genotype
MGI:3773310
cn2
Allelic
Composition
Scd1tm2Ntam/Scd1tm2Ntam
Speer6-ps1Tg(Alb-cre)21Mgn/Speer6-ps1+
Genetic
Background
B6.Cg-Speer6-ps1Tg(Alb-cre)21Mgn Scd1tm2Ntam
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Scd1tm2Ntam mutation (0 available); any Scd1 mutation (24 available)
Speer6-ps1Tg(Alb-cre)21Mgn mutation (6 available); any Speer6-ps1 mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• resistant to high carbohydrate and high-sucrose very low-fat, but not high fat, diet-induced obesity

adipose tissue
• reduced by 51% in mice on a high-sucrose very low-fat diet compared to diet matched controls
• on a high carbohydrate diet weights of the gonadal, retroperitioneal, and inguinal fat pads are reduced by about 49% - 59% compared to controls lacking the cre transgene
• reduced weight on a high carbohydrate diet compared to diet matched controls
• reduced weight on a high carbohydrate diet compared to diet matched controls
• reduced weight on a high carbohydrate diet compared to diet matched controls

homeostasis/metabolism
N
• unlike global null mice, no difference is seen in plasma glucose and insulin levels, glucose clearance or insulin sensitivity between liver knockout mice and controls on a high carbohydrate diet
• resistant to high carbohydrate and high-sucrose very low-fat, but not high fat, diet-induced obesity
• reduced in mice on a high-sucrose very low-fat diet compared to diet matched controls
• but not in mice on high carbohydrate, high fat, or chow diet
• supplementing the high-sucrose very low-fat diet with oleate prevents the decrease in plasma glucose levels
• impaired production of glucose from pyruvate in mice fed a high-sucrose very low-fat diet
• reduced glycogen levels in the liver in mice on a high-sucrose very low-fat diet compared to diet matched controls
• supplementing the diet with oleate prevents the decrease in hepatic glycogen levels
• 85% decrease in hepatic lipogenesis in mice on a high carbohydrate diet
• however, cholesterol synthesis is unaffected
• develops in mice on a high-sucrose very low-fat diet, probably due to increases in HDL and LDL cholesterol
• in mice on a high carbohydrate diet compared to diet-matched controls
• however, levels are similar to controls in mice on a chow or high fat diet
• significant reduction in mice on a high carbohydrate or a high-sucrose very low-fat diet compared to diet-matched controls
• on a high carbohydrate or diet high-sucrose very low-fat diet, liver triglyceride levels are reduced by 69% or 49%, respectively, compared to controls
• fasted mice refed a fat free high carbohydrate diet have lower liver levels of SCD1 products including palmitoleate and oleate
• supplementing the diet with triolein reduces the decrease in liver triglyceride levels

liver/biliary system
• reduced glycogen levels in the liver in mice on a high-sucrose very low-fat diet compared to diet matched controls
• supplementing the diet with oleate prevents the decrease in hepatic glycogen levels
• on a high carbohydrate or diet high-sucrose very low-fat diet, liver triglyceride levels are reduced by 69% or 49%, respectively, compared to controls
• fasted mice refed a fat free high carbohydrate diet have lower liver levels of SCD1 products including palmitoleate and oleate
• supplementing the diet with triolein reduces the decrease in liver triglyceride levels
• resistant to high carbohydrate and high-sucrose very low-fat, but not high fat, diet-induced fatty liver development
• block in carbohydrate-induce hepatic lipogenesis
• a high-sucrose very low-fat diet fails to increase the rate of triglyceride secretion, unlike in controls

behavior/neurological
N
• unlike global null mice, no difference in food intake is seen in mice on a chow diet





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