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Phenotypes Associated with This Genotype
Genotype
MGI:3690547
Allelic
Composition		 Fastm1Cgn/Fastm1Cgn
Tg(Lck-cre)I57Jxm/0
Genetic
Background		 B6.Cg-Fastm1Cgn Tg(Lck-cre)I57Jxm
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fastm1Cgn mutation (1 available); any Fas mutation (83 available)
Tg(Lck-cre)I57Jxm mutation (5 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
immune system
lymph node hypoplasia ( J:114948 )
• at 7 months of age, lymph nodes contain fewer than 0.1 million cells

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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Send questions and comments to User Support. 		last database update
01/28/2026
MGI 6.24 		The Jackson Laboratory