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Phenotypes Associated with This Genotype
Genotype
MGI:6505552
cn171
Allelic
Composition
Krastm4Tyj/Kras+
Tg(Mx1-cre)1Cgn/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * C57BL/6J * CBA/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krastm4Tyj mutation (12 available); any Kras mutation (88 available)
Tg(Mx1-cre)1Cgn mutation (10 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• pIpC-induced mice die earlier than induced conditional Krastm1.1Khai mice

hematopoietic system
• mice induced with polyinosinic:polycytidylic acid (pIpC) develop a myelodysplastic syndrome/myeloproliferative neoplasm that is qualitatively similar to that seen in conditional Krastm1.1Khai mice, but with a faster onset
• dying pIpC-induced mice show splenomegaly
• dying pIpC-induced mice show severe anemia
• expansion of immature myeloid cells in the bone marrow and spleen in pIpC-induced mice
• expansion of immature myeloid cells in the bone marrow of pIpC-induced mice

immune system
• dying pIpC-induced mice show splenomegaly

growth/size/body
• dying pIpC-induced mice show splenomegaly


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
03/18/2025
MGI 6.24
The Jackson Laboratory