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Phenotypes Associated with This Genotype
Genotype
MGI:5582255
Allelic
Composition
Erfetm1Lex/Erfetm1Lex
Hbb-b1tm1Unc/Hbb-b1+
Hbb-b2tm1Unc/Hbb-b2+
Genetic
Background
involves: 129P2/OlaHsd * 129S5/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Erfetm1Lex mutation (2 available); any Erfe mutation (11 available)
Hbb-b1tm1Unc mutation (2 available); any Hbb-b1 mutation (8 available)
Hbb-b2tm1Unc mutation (2 available); any Hbb-b2 mutation (5 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• mean corpuscular hemoglobin levels are decreased compared to double heterozygous Hbb-b1tm1Unc and Hbb-b2tm1Unc mutants
• erythrocyte mean corpuscular volume is decreased compared to double heterozygous Hbb-b1tm1Unc and Hbb-b2tm1Unc mutants

homeostasis/metabolism
• serum iron concentrations are decreased compared to double heterozygous Hbb-b1tm1Unc and Hbb-b2tm1Unc mutants
• increase in hepcidin levels
• mice show less hepatic iron overload than double heterozygous Hbb-b1tm1Unc and Hbb-b2tm1Unc mutants

liver/biliary system
• mice show less hepatic iron overload than double heterozygous Hbb-b1tm1Unc and Hbb-b2tm1Unc mutants


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
03/25/2025
MGI 6.24
The Jackson Laboratory