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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Spi1tm1Ram
targeted mutation 1, Richard A Maki
MGI:1927876
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Spi1tm1Ram/Spi1tm1Ram involves: 129S2/SvPas MGI:2658721
hm2
Spi1tm1Ram/Spi1tm1Ram involves: 129S2/SvPas * C57BL/6 MGI:3793505
ht3
Spi1tm1Ram/Spi1+ involves: 129S2/SvPas MGI:2658728
cx4
Spi1tm1Ram/Spi1tm1Ram
Tg(SOD1*G93A)1Gur/0
involves: 129S2/SvPas * C57BL/6 * SJL MGI:3793622


Genotype
MGI:2658721
hm1
Allelic
Composition
Spi1tm1Ram/Spi1tm1Ram
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spi1tm1Ram mutation (0 available); any Spi1 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• the pupillary membrane and tunica vasculosa lentis persist postnatally unlike in wild-type mice due to a defective clearance of apoptotic cells

hematopoietic system
• mice lack ocular macrophages

homeostasis/metabolism
N
• despite a lack of macrophages, wound healing occurs at the same rate as in wild-type mice

immune system
• mice lack ocular macrophages




Genotype
MGI:3793505
hm2
Allelic
Composition
Spi1tm1Ram/Spi1tm1Ram
Genetic
Background
involves: 129S2/SvPas * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spi1tm1Ram mutation (0 available); any Spi1 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• antibiotic-treated mice receiving bone marrow transplants have a life expectancy of 331 +/- 20 days
• all mice develop septicemia and die within 24 hours of birth, but mice treated with antibiotics live up to 17 days of age

immune system
• no mature neutrophils are found in the blood, liver, spleen or bone marrow and fewer immature neutrophils are identified
• no mature macrophages are detected
• T cell development is delayed with T cells appearing 3 to 5 days after birth in antibiotic treated mice
• in the thymus and periphery
• no mature neutrophils are found in the blood, liver, spleen or bone marrow and fewer immature neutrophils are identified
• in the thymus and periphery
• in the thymus and periphery
• in the thymus and periphery
• no mature macrophages are detected
• microglia exhibit more prominent, rounded cell bodies and shorter or thicker processes indicating a less differentiated state
• all mice develop septicemia and die within 24 hours of birth

liver/biliary system
• occasionally mice exhibit a slightly darker red liver than wild-type mice

nervous system
• microglia exhibit more prominent, rounded cell bodies and shorter or thicker processes indicating a less differentiated state
• bone marrow donor cells fail to develop into astrocytes

growth/size/body
• antibiotic-treated mice receiving bone marrow cells from Tg(SOD1*G93A)1Gur mice growing slower than those receiving wild-type bone marrow cells

hematopoietic system
• no mature neutrophils are found in the blood, liver, spleen or bone marrow and fewer immature neutrophils are identified
• no mature macrophages are detected
• T cell development is delayed with T cells appearing 3 to 5 days after birth in antibiotic treated mice
• no mature neutrophils are found in the blood, liver, spleen or bone marrow and fewer immature neutrophils are identified
• in the thymus and periphery
• in the thymus and periphery
• in the thymus and periphery
• in the thymus and periphery
• no mature macrophages are detected
• microglia exhibit more prominent, rounded cell bodies and shorter or thicker processes indicating a less differentiated state

cellular
• no mature neutrophils are found in the blood, liver, spleen or bone marrow and fewer immature neutrophils are identified
• no mature macrophages are detected

endocrine/exocrine glands
• in the thymus and periphery




Genotype
MGI:2658728
ht3
Allelic
Composition
Spi1tm1Ram/Spi1+
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spi1tm1Ram mutation (0 available); any Spi1 mutation (27 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• the pupillary membrane and tunica vasculosa lentis partially persist postnatally unlike in wild-type mice due to a defective clearance of apoptotic cells




Genotype
MGI:3793622
cx4
Allelic
Composition
Spi1tm1Ram/Spi1tm1Ram
Tg(SOD1*G93A)1Gur/0
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Spi1tm1Ram mutation (0 available); any Spi1 mutation (27 available)
Tg(SOD1*G93A)1Gur mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice receiving bone marrow from when treated with wild-type bone marrow transfer survive longer than Tg(SOD1*G93A)1Gur mice or mice receiving bone marrow transfers Tg(SOD1*G93A)1Gur mice but not as long as wild-type mice

nervous system
• motor neuron loss is more severe in mice receiving bone marrow transfer from Tg(SOD1*G93A)1Gur mice compared to mice receiving bone marrow transfers from wild-type mice that do not exhibit a significant amount of neuron loss
• antibiotic-treated mice receiving bone marrow cells from wild-type donors exhibit reduced motor neuron disease progression compared to those receiving bone marrow transplants from Tg(SOD1*G93A)1Gur mice

growth/size/body
N
• antibiotic-treated mice exhibit normal growth rates





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