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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		FblGt(pGT1-3)1Jca
gene trap 1, Javier F Caceres
MGI:3043754
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		FblGt(pGT1-3)1Jca/FblGt(pGT1-3)1Jca involves: 129P2/OlaHsd * C57BL/6 MGI:3043755
ht2
 		FblGt(pGT1-3)1Jca/Fbl+ involves: 129P2/OlaHsd * C57BL/6 MGI:3043757


Genotype
MGI:3043755
hm1
Allelic
Composition		 FblGt(pGT1-3)1Jca/FblGt(pGT1-3)1Jca
Genetic
Background		 involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
FblGt(pGT1-3)1Jca mutation (0 available); any Fbl mutation (23 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
embryonic lethality before implantation, complete penetrance ( J:89938 )
• homozygous embryos die between E2.5 and E3.5

embryo
embryonic growth arrest ( J:89938 )
• homozygous embryos arrest at the morula stage




Genotype
MGI:3043757
ht2
Allelic
Composition		 FblGt(pGT1-3)1Jca/Fbl+
Genetic
Background		 involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
FblGt(pGT1-3)1Jca mutation (0 available); any Fbl mutation (23 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
mortality/aging
prenatal lethality, incomplete penetrance ( J:89938 )
• fewer than expected heterozygous mice are found at birth




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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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Send questions and comments to User Support. 		last database update
09/30/2025
MGI 6.24 		The Jackson Laboratory