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Phenotypes Associated with This Genotype
Genotype
MGI:3758331
Allelic
Composition
Cnr1tm1.2Ltz/Cnr1tm1.2Ltz
Tg(Camk2a-cre)2Gsc/?
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6NCrl * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cnr1tm1.2Ltz mutation (1 available); any Cnr1 mutation (41 available)
Tg(Camk2a-cre)2Gsc mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• kainic acid induces stronger seizures than in wild-type mice
• however, diazepam protects mice and wild-type mice similarly against kainic acid-induced seizures

behavior/neurological
• kainic acid induces stronger seizures than in wild-type mice
• however, diazepam protects mice and wild-type mice similarly against kainic acid-induced seizures
• mutants exhibit a hyperphagic phenotype compared to controls on the first day of a novel palatable food test, and maintain the higher food intake over the course of the experiment
• mutants show high levels of physical interaction with a novel object from the first experimental day even when the palatability component is removed
• mutants do not show any safety behavior towards the novel food and immediately consume the maximal amount, indicating impaired regulation of behavioral inhibition
• mutants exhibit shorter latencies to contact with the novel food item and to displace the novel object


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