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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Selenoptm1Rfb
targeted mutation 1, Raymond F Burk
MGI:2656912
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Selenoptm1Rfb/Selenoptm1Rfb B6.129-Selenoptm1Rfb MGI:3795861
hm2
Selenoptm1Rfb/Selenoptm1Rfb involves: 129 * C57BL/6J MGI:2656913
cx3
Gpx3tm1Hjco/Gpx3tm1Hjco
Selenoptm1Rfb/Selenoptm1Rfb
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:4456210


Genotype
MGI:3795861
hm1
Allelic
Composition
Selenoptm1Rfb/Selenoptm1Rfb
Genetic
Background
B6.129-Selenoptm1Rfb
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Selenoptm1Rfb mutation (1 available); any Selenop mutation (24 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• T. congolense parasite infection leads to higher apoptosis in the liver among both CD11b- and CD11b+ cells

behavior/neurological
• of male and female mice fed a standard diet in a Morris water maze
• however, mice fed a high selenium diet exhibit normal learning
• in male and female mice
• mice exhibit motor deficits compared with wild-type mice
• however, selenium supplementation alleviates motor deficits
• in a pole test and inverted hang test
• worse in males than females
• male, but not female, mice hang upside-down on a vertically oriented pole for less time than wild-type mice
• mice have stride lengths that are significantly shorter than control mice
• in male mice but not female mice
• greatly in males
• slightly in females

immune system
• mice are more susceptible to T. congolense infection with a significantly higher parasite burden in the blood six days after infection and a significantly decreased survival curve
• 50% of mice die around 9 days post infection while 50% of control mice survive until 150 days
• mice that survive the initial infection die significantly earlier than controls (around 95 days post infection vs 163 days in controls)

homeostasis/metabolism
• selenium plasma levels are on average less than half that of wild-type controls
• whole body selenium levels are decreased by 36%

liver/biliary system
• T. congolense parasite infection leads to higher apoptosis in the liver among both CD11b- and CD11b+ cells
• there is decreased liver function compared to wild-type mice 9 days post infection with T. congolense parasite infection

mortality/aging
• mice die of nuerological dysfunctions within 30 days of removal from selenium in the diet
• the survival curve is significantly shorter than Sepp1tm2Rfb mice on a selenium deficient diet




Genotype
MGI:2656913
hm2
Allelic
Composition
Selenoptm1Rfb/Selenoptm1Rfb
Genetic
Background
involves: 129 * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Selenoptm1Rfb mutation (1 available); any Selenop mutation (24 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice survive about 15 days on a selenium-free diet
• 31% of homozygous pups produced from matings between heterozygous males and homozygous females die before weaning

behavior/neurological
• animals develop loss of motor coordination on a selenium-free diet
• reduced ability to raise mutant pups, 31% of homozygous mutant pups died before weaning

growth/size/body
• animals lose weight on a selenium-free diet

reproductive system

homeostasis/metabolism
• very low plasma selenium concentration while liver selenium levels are greater, indicating that the liver retains more selenium than in wild-type
• mice fed the dietary requirement of selenium exhibit selenium concentrations in the testis, brain, and kidney that are 19%, 43%, and 76% of controls, respectively




Genotype
MGI:4456210
cx3
Allelic
Composition
Gpx3tm1Hjco/Gpx3tm1Hjco
Selenoptm1Rfb/Selenoptm1Rfb
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gpx3tm1Hjco mutation (0 available); any Gpx3 mutation (37 available)
Selenoptm1Rfb mutation (1 available); any Selenop mutation (24 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• despite dietary selenium supplementation, plasma selenium levels are just above the detection limit and much lower than in wild-type mice





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