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Phenotypes Associated with This Genotype
Genotype
MGI:3619905
Allelic
Composition
Fbn1Tsk/Fbn1+
KitW/KitW-v
Genetic
Background
involves: C57BL/6 * C57BL/10 * DBA/2 * WB/ReJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fbn1Tsk mutation (2 available); any Fbn1 mutation (173 available)
KitW mutation (10 available); any Kit mutation (180 available)
KitW-v mutation (10 available); any Kit mutation (180 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• absence of interscapular skin mast cells

respiratory system
• enlargement of airspaces

immune system
• absence of interscapular skin mast cells

pigmentation
• white coat and black eyes

integument
• white coat and black eyes
• increase in subcutaneous connective tissue, with an accumulation beneath the panniculus carnosus muscle
• tight skin develops around 7 days of age
• develop skin fibrosis, indicating that fibrosis is mast cell independent, however the degree of fibrosis development at older ages (5-7 months) is less than in single heterozygous Fbn1 mutant mice, which contain elevated levels of mast cells, indicating that mast cells contribute to fibrosis later in life


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