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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Chrm4tm2.1Jwe
targeted mutation 2.1, Jurgen Wess
MGI:4442323
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Chrm4tm2.1Jwe/Chrm4tm2.1Jwe
Tg(Drd1a-cre)AGsc/0
involves: 129S6/SvEvTac * C57BL/6 * FVB/N MGI:4442324


Genotype
MGI:4442324
cn1
Allelic
Composition
Chrm4tm2.1Jwe/Chrm4tm2.1Jwe
Tg(Drd1a-cre)AGsc/0
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Chrm4tm2.1Jwe mutation (0 available); any Chrm4 mutation (33 available)
Tg(Drd1a-cre)AGsc mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• the inhibitory effect of carbachol, a hydrolytically stable ACh analog, is not observed in striatal membranes exposed to the D1 receptor agonist, SKF82958.

behavior/neurological
• enhanced activity at the highest dose (30 ug/kg) of SKF82958, a D1 receptor agonist
• significantly more active following a high dose (2 mg/kg) of amphetamine
• develop enhanced amphetamine induced behavioral sensitization
• significantly more active following exposure to a high dose (10 mg/kg) of cocaine
• develop enhanced cocaine induced behavioral sensitization
• haloperidol induced and risperidone induced catalepsy are attenuated
• enhanced activity at the highest dose of SKF82958, a D1 receptor agonist
• enhanced activity at high doses of cocaine (10 mg/kg) or amphetamine (2 mg/kg)
• haloperidol induced and risperidone induced catalepsy are attenuated

homeostasis/metabolism
• basal dopamine efflux in the nucleus accumbens of is increased two- to three-fold
• absolute amphetamine-induced dopamine efflux was significantly enhanced at the 120 min time point, as compared to control mice
• however, the relative percent increase induced by amphetamine exposure is not different from controls





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last database update
05/07/2024
MGI 6.23
The Jackson Laboratory