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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Echs1em3Lutzy
endonuclease-mediated mutation 3, Cathy Lutz
MGI:8282682
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Echs1em3Lutzy/Echs1em3Lutzy C57BL/6J-Echs1em3Lutzy/Lutzy MGI:8292151
ht2
Echs1em1Lutzy/Echs1em3Lutzy C57BL/6J-Echs1em1Lutzy/Echs1em3Lutzy MGI:8286541


Genotype
MGI:8292151
hm1
Allelic
Composition
Echs1em3Lutzy/Echs1em3Lutzy
Genetic
Background
C57BL/6J-Echs1em3Lutzy/Lutzy
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Echs1em3Lutzy mutation (0 available); any Echs1 mutation (25 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• intercrossing heterozygotes fails to produce homozygotes




Genotype
MGI:8286541
ht2
Allelic
Composition
Echs1em1Lutzy/Echs1em3Lutzy
Genetic
Background
C57BL/6J-Echs1em1Lutzy/Echs1em3Lutzy
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Echs1em1Lutzy mutation (0 available); any Echs1 mutation (25 available)
Echs1em3Lutzy mutation (0 available); any Echs1 mutation (25 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• increased active awake state, normal awake inactive state, and decreased slow wave sleep
• although no differences are found in sensory gating during pre-pulse inhibition using auditory stimuli, there is increased latency to withdraw the foot from the hotplate
• EEG traces show increased epileptiform discharges
• increased susceptibility to pentylenetetrazol induced seizures an resulting death

cellular
• normal brain development and no degeneration seen at 18 months of age compared with wildtype, but twice as many microglia are found in the striatum

nervous system
• EEG traces show increased epileptiform discharges
• increased susceptibility to pentylenetetrazol induced seizures an resulting death
• normal brain development and no degeneration seen at 18 months of age compared with wildtype, but twice as many microglia are found in the striatum
• normal brain development and no degeneration seen at 18 months of age compared with wildtype, but twice as many microglia are found in the striatum
• increased as measured by EEG at approximately 3.5 month of age
• increased as measured by EEG at approximately 3.5 month of age

hematopoietic system
• normal brain development and no degeneration seen at 18 months of age compared with wildtype, but twice as many microglia are found in the striatum

homeostasis/metabolism

immune system
• normal brain development and no degeneration seen at 18 months of age compared with wildtype, but twice as many microglia are found in the striatum





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
01/28/2026
MGI 6.24
The Jackson Laboratory