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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Dmbx1tm1Sse
targeted mutation 1, Susumu Seino
MGI:3759315
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Dmbx1tm1Sse/Dmbx1tm1Sse involves: ICR MGI:3759410
cx2
Dmbx1tm1Sse/Dmbx1tm1Sse
Lepob/Lepob
involves: ICR MGI:3759411
cx3
Ay/a
Dmbx1tm1Sse/Dmbx1tm1Sse
involves: ICR MGI:3759412


Genotype
MGI:3759410
hm1
Allelic
Composition
Dmbx1tm1Sse/Dmbx1tm1Sse
Genetic
Background
involves: ICR
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dmbx1tm1Sse mutation (0 available); any Dmbx1 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most mice die before weaning
• however, when raised apart from wild-type sibling mice survive into adolescence

behavior/neurological
• however, similar to in wild-type mice administration of MT-II suppresses food intake
• while mice respond to administration of SHU9119 and AGRP with increased food intake at 6 hours, this reaction does not persist at 24 hours as it does in wild-type mice
• administration of AGRP results in decreased food consumption at 24 hours and 3 days
• unlike in wild-type mice, food intake during the first two days of isolation is reduced compared to the average food intake after 4 weeks of acclimatization
• overall food intake is reduced relative to for wild-type mice when housed individually
• however, injection of leptin was still able to further decrease food intake as in wild-type mice
• mice are more active than wild-type mice in both the light and dark phase

growth/size/body
• when mice are raised separately from wild-type siblings mice survive but weight 30% less than wild-type mice
• mice lose more weight during the first 6 days of isolation compared to wild-type mice
• body length of adult mice is greater than 90% of that for wild-type mice

homeostasis/metabolism

adipose tissue
• adipocytes of the epididymal fat tissue are reduced in size compared to in wild-type mice

nervous system
N
• mice display no spongiform degeneration or abnormalities in either the fiber densities of AGRP neurons and POMC neurons in the hypothalamus and the dorsal pons or in the abundance of the tyrosine hydroxylase+ neurons in the thalamus and the ventral tegmental area




Genotype
MGI:3759411
cx2
Allelic
Composition
Dmbx1tm1Sse/Dmbx1tm1Sse
Lepob/Lepob
Genetic
Background
involves: ICR
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dmbx1tm1Sse mutation (0 available); any Dmbx1 mutation (20 available)
Lepob mutation (5 available); any Lep mutation (19 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• body weight is lower than in Lepob homozygotes but higher than in Dmbx1tm1Sse homozygotes

homeostasis/metabolism
• blood glucose levels are lower than in Lepob homozygotes but higher than in Dmbx1tm1Sse homozygotes




Genotype
MGI:3759412
cx3
Allelic
Composition
Ay/a
Dmbx1tm1Sse/Dmbx1tm1Sse
Genetic
Background
involves: ICR
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
a mutation (229 available); any a mutation (463 available)
Ay mutation (12 available); any a mutation (463 available)
Dmbx1tm1Sse mutation (0 available); any Dmbx1 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• unlike Ay/a mice, the body weight of double homozygotes is similar to that of Dmbx1tm1Sse homozygotes





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last database update
04/16/2024
MGI 6.23
The Jackson Laboratory