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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Fgf15+
wild type
MGI:2434675
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Fgf15tm1.1(KOMP)Vlcg/Fgf15+ C57BL/6N-Fgf15tm1.1(KOMP)Vlcg/MbpMmucd MGI:6325137
ht2
Fgf15tm1Sms/Fgf15+ involves: 129S1/Sv * 129X1/SvJ * C57BL/6 MGI:3639489
cx3
Fgf15tm1Sms/Fgf15+
Tbx1tm1Bld/Tbx1+
involves: 129S1/Sv * 129S7/SvEvBrd * 129X1/SvJ * C57BL/6 MGI:3639490


Genotype
MGI:6325137
ht1
Allelic
Composition
Fgf15tm1.1(KOMP)Vlcg/Fgf15+
Genetic
Background
C57BL/6N-Fgf15tm1.1(KOMP)Vlcg/MbpMmucd
Cell Lines 13500A-G3
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgf15tm1.1(KOMP)Vlcg mutation (1 available); any Fgf15 mutation (17 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
IMPC - UCD




Genotype
MGI:3639489
ht2
Allelic
Composition
Fgf15tm1Sms/Fgf15+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgf15tm1Sms mutation (1 available); any Fgf15 mutation (17 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• on a predominantly C57BL/6 genetic background, heterozygotes are obtained at a slightly reduced Mendelian frequency between P0 and P7 (44.44% vs expected 50%)

cardiovascular system
• at E18.5, 9.1% of heterozygotes display an overriding aorta; however, no aortic arch patterning defects are observed
• at E18.5, 18.2% of heterozygotes exhibit muscular and membranous ventricular septal defects




Genotype
MGI:3639490
cx3
Allelic
Composition
Fgf15tm1Sms/Fgf15+
Tbx1tm1Bld/Tbx1+
Genetic
Background
involves: 129S1/Sv * 129S7/SvEvBrd * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fgf15tm1Sms mutation (1 available); any Fgf15 mutation (17 available)
Tbx1tm1Bld mutation (1 available); any Tbx1 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• at E18.5, double heterozygotes show no significant increase in the penetrance or severity of aortic arch patterning defects relative to Tbx1tm1Bld heterozygotes
• observed defects include interrupted aortic arch type-B (20%), aberrant origin of the right subclavian artery (30%), and VSDs (membranous 20%; muscular: 10%)





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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
01/06/2026
MGI 6.24
The Jackson Laboratory