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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Gt(ROSA)26Sortm1(EWSR1/FLI1)Sbk
targeted mutation 1, Suzanne J Baker
MGI:3769110
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Gt(ROSA)26Sortm1(EWSR1/FLI1)Sbk/Gt(ROSA)26Sor+
Tg(Mx1-cre)1Cgn/?
involves: 129S1/Sv * C57BL/6 * CBA MGI:3769116


Genotype
MGI:3769116
cn1
Allelic
Composition
Gt(ROSA)26Sortm1(EWSR1/FLI1)Sbk/Gt(ROSA)26Sor+
Tg(Mx1-cre)1Cgn/?
Genetic
Background
involves: 129S1/Sv * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(EWSR1/FLI1)Sbk mutation (0 available); any Gt(ROSA)26Sor mutation (944 available)
Tg(Mx1-cre)1Cgn mutation (7 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• when treated at day 2 or 3 with pIpC, the median age of death is 16 days with distended abdomens, pale footpads, hunched posture, and ruffled fur
• untreated mice exhibit a median age of death of 95 days do to the leakiness of the cre transgene

hematopoietic system
• when treated at day 2 or 3 with pIpC, spleens are 12.8-fold larger than wild-type due to increased proliferation without decreased apoptotic rates
• when treated at day 2 or 3 with pIpC, blood smears contain an abnormal presence of immature blast cells
• when treated at day 2 or 3 with pIpC, red pulp is expanded with immature myeloid cells that are 30% to 50% positive for stem cell markers
• when treated at day 2 or 3 with pIpC, mice develop severe anemia
• 2.1+/-0.5x106 per ul compared to 6.4+/-1.5x106 per ul in wild-type mice when treated at day 2 or 3 with pIpC
• 15+/-3% compared to 37+/-7% in wild-type mice when treated at day 2 or 3 with pIpC
• 515+/-223x103 per ul compared to 399+/-149x103 per ul in wild-type mice when treated at day 2 or 3 with pIpC
• 90+/-68x103 per ul compared to 3.4+/-1.5x103 per ul in wild-type mice when treated at day 2 or 3 with pIpC
• when treated at day 2 or 3 with pIpC, red pulp is expanded with immature myeloid cells that are 30% to 50% positive for stem cell markers

neoplasm
• when treated at day 2 or 3 with pIpC, mice develop leukemias and when transplanted into recipient mice are associated with leukemic proliferation

liver/biliary system
• when treated at day 2 or 3 with pIpC, livers are 3.3-fold larger than wild-type due to increased proliferation without decreased apoptotic rates

immune system
• when treated at day 2 or 3 with pIpC, spleens are 12.8-fold larger than wild-type due to increased proliferation without decreased apoptotic rates
• when treated at day 2 or 3 with pIpC, red pulp is expanded with immature myeloid cells that are 30% to 50% positive for stem cell markers
• 90+/-68x103 per ul compared to 3.4+/-1.5x103 per ul in wild-type mice when treated at day 2 or 3 with pIpC
• when treated at day 2 or 3 with pIpC, red pulp is expanded with immature myeloid cells that are 30% to 50% positive for stem cell markers
• when treated at day 2 or 3 with pIpC, lymphoid follicles is decreased

growth/size/body
• when treated at day 2 or 3 with pIpC, livers are 3.3-fold larger than wild-type due to increased proliferation without decreased apoptotic rates
• when treated at day 2 or 3 with pIpC, spleens are 12.8-fold larger than wild-type due to increased proliferation without decreased apoptotic rates





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last database update
05/07/2024
MGI 6.23
The Jackson Laboratory