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Phenotypes Associated with This Genotype
Genotype
MGI:4837210
Allelic
Composition		 Fevtm1Esd/Fevtm2.1Esd
Genetic
Background		 involves: 129S1/Sv * 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fevtm1Esd mutation (0 available); any Fev mutation (14 available)
Fevtm2.1Esd mutation (0 available); any Fev mutation (14 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
nervous system
decreased neuron number ( J:165266 )
• decrease in the number of tryptophan hydroxylase positive neurons
abnormal serotonergic neuron morphology ( J:165266 )
• decrease in the number of tryptophan hydroxylase positive neurons

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
01/06/2026
MGI 6.24 		The Jackson Laboratory