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Phenotypes Associated with This Genotype
Genotype
MGI:2680473
Allelic
Composition
Mplhlb219/Mplhlb219
Genetic
Background
C57BL/6J-Mplhlb219/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Mplhlb219 mutation (2 available); any Mpl mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• two of three mice showed minor splenomegaly upon necroscopy
• mutant bone marrow cells gave rise to significantly smaller CFU-granulocyte-macrophage (CFU-GM) and CFU-granulocyte (CFU-G) than controls
• mutant bone marrow cells gave rise to significantly smaller CFU-granulocyte-erythrocyte-monocytemacrophage (CFU-GEMM) than controls
• mutant mice exhibit a decreased number of megakaryocytes in the bone marrow
• mutant bone marrow cells gave rise to significantly smaller CFU-Mk populations than controls
• significantly fewer red blood cells compared to controls
• mice had a platelet count of 106 X 103 cells/ul at 6 weeks of age (J:82961)
• the platelet level is reduced by approximately 80% in comparison to controls (J:146577)
• platelet morphology is normal and there is no sign of platelet aggregation in blood smears stained with Wright-Giemsa (J:146577)
• lower white blood cells counts than controls

homeostasis/metabolism
• circulating thrombopoietin (TPO) levels in mutant mice are approximately 10 times higher than in controls
• an increase in tail vein bleeding time is seen, but no obvious signs of excessive bleeding are noted

immune system
• two of three mice showed minor splenomegaly upon necroscopy
• lower white blood cells counts than controls
• circulating thrombopoietin (TPO) levels in mutant mice are approximately 10 times higher than in controls

growth/size/body
• two of three mice showed minor splenomegaly upon necroscopy


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