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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tph2tm1Mca
targeted mutation 1, Marc G Caron
MGI:3774541
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Tph2tm1Mca/Tph2tm1Mca involves: 129S6/SvEvTac * C57BL/6J MGI:3801152
ht2
Tph2tm1Mca/Tph2+ involves: 129S6/SvEvTac * C57BL/6J MGI:3801151
cx3
Gsk3btm1Jrw/Gsk3b+
Tph2tm1Mca/Tph2tm1Mca
involves: 129 * 129S6/SvEvTac * C57BL/6J MGI:3801154


Genotype
MGI:3801152
hm1
Allelic
Composition
Tph2tm1Mca/Tph2tm1Mca
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tph2tm1Mca mutation (3 available); any Tph2 mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• 80% reduction in brain 5-HT production

behavior/neurological
• in a test of social interaction in a neutral arena, males exhibit enhanced levels of physical attacks against a non-aggressive male
• immobility times in the tail suspension test are prolonged (J:131619)
• mutants exhibit increased immobility in the tail-suspension test compared to wild-type mice (J:196373)
• fluoxetine treatment decreases immobility in mutants (J:196373)
• however, no differences in gross locomotor activity are seen and fluoxetine treatment significantly decreases forward locomotion in mutants (J:196373)
• in the dark-light emergence test, mutants display longer latencies to cross to the lighted compartment, reduced activity in the lighted compartment, and more transitions between the two compartments compared to controls

nervous system
• mutants exhibit increased intra-network synchrony within medial prefrontal cortex and basal amygdala (increase in amygdala-medial prefrontal cortex delta and beta spectral coherence) and increased internetwork synchrony between the two networks (increase in amygdala and medial prefrontal cortex delta-beta cross-frequency phase coupling)
• fluoxetine treatment decreases amygdala-medial prefrontal cortex delta coherence in mutants but has no effect in wild-type mice, however chronic fluoxetine treatment does not have a significant effect on beta coherence and cross-frequency phase coupling

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
melancholic depression DOID:1595 OMIM:608516
J:196373




Genotype
MGI:3801151
ht2
Allelic
Composition
Tph2tm1Mca/Tph2+
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tph2tm1Mca mutation (3 available); any Tph2 mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• 40% reduction in brain 5-HT production

behavior/neurological
• although males do not exhibit increased attacks against a non-aggressive male in a test of social interaction, they do show an increase in threatening postures
• immobility times in the tail suspension test are prolonged
• in the dark-light emergence test, mutants display longer latencies to cross to the lighted compartment and reduced activity in the lighted compartment




Genotype
MGI:3801154
cx3
Allelic
Composition
Gsk3btm1Jrw/Gsk3b+
Tph2tm1Mca/Tph2tm1Mca
Genetic
Background
involves: 129 * 129S6/SvEvTac * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gsk3btm1Jrw mutation (0 available); any Gsk3b mutation (111 available)
Tph2tm1Mca mutation (3 available); any Tph2 mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
N
• the Gsk3b allele rescues the aberrant behaviors observed in Tph2 homozygotes; mice exhibit normal immobility times in the tail suspension test, normal behavior in dark-light emergence test and normal aggression towards males
• mutants display enhanced social investigation





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