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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Crhr2tm1Jsp
targeted mutation 1, Joachim Speiss
MGI:2178616
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Crhr2tm1Jsp/Crhr2tm1Jsp involves: 129S1/Sv * 129X1/SvJ * C57BL/6J MGI:3044788
ht2
Crhr2tm1Jsp/Crhr2+ involves: 129S1/Sv * 129X1/SvJ * C57BL/6J MGI:3044818


Genotype
MGI:3044788
hm1
Allelic
Composition
Crhr2tm1Jsp/Crhr2tm1Jsp
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Crhr2tm1Jsp mutation (2 available); any Crhr2 mutation (35 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
N
• male and female homozygotes showed normal baseline feeding and body weight gain
• male homozygotes displayed normal locomotor activity in the elevated plus-maze test, and in a novel environment
• female homozygotes showed normal baseline anxiety levels, stress-induced anxiety, and locomotor activity relative to wild-type
• baseline anxiety of female wild-type and homozygous mice did not change with regard to estrous cycle phase
• female homozygotes showed normal behavior in the dark-light emergence task, open-field and acute locomotor activity test
• in the elevated plus-maze, homozygous males appeared to be more anxious than wild-type males
• in the open-field, homozygotes were explorative and did not differ from wild-type in traveled distance and time spent in the peripheral zones; however, homozygotes showed increased center region activity
• a single 5-min exposure to the elevated plus-maze resulted in a sustained elevation of phosphorylated Creb and widespread Fos production
• the levels of pCreb were lower in specific brain regions of male, but not female, homozygotes compared with wild-type controls: these regions included the cingulate cortex, the bed nucleus of the stria terminalis, the ventromedial hypothalamic nucleus and the basolateral amygdala
• all genotypes showed a similar level and distribution of Fos protein after exposure to the pus-maze regardless of gender

cardiovascular system
• homozygotes of both genders exhibited increased edema formation in response to thermal injury relative to wild-type

hearing/vestibular/ear
N
• no auditory or orientational deficits

homeostasis/metabolism
N
• homozygotes displayed a normal activation of the HPA axis in response to 10 minutes of physical restraint stress
• the increased POMC1 (ACTH) and corticosterone levels produced by male or female homozygotes did not differ from the values obtained for matched wild-type controls

vision/eye
N
• no visual deficits




Genotype
MGI:3044818
ht2
Allelic
Composition
Crhr2tm1Jsp/Crhr2+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Crhr2tm1Jsp mutation (2 available); any Crhr2 mutation (35 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
N
• male heterozygotes displayed normal locomotor activity in the elevated plus-maze test, and in a novel environment
• female heterozygotes showed normal baseline anxiety levels, stress-induced anxiety, and locomotor activity relative to wild-type
• baseline anxiety of female wild-type and heterozygous mice did not change with regard to estrous cycle phase
• female heterozygotes showed normal behavior in the dark-light emergence task, open-field and acute locomotor activity test
• in the elevated plus-maze, heterozygous males appeared to be more anxious than wild-type males
• in the dark-light emergence and open-field tests, the anxiety level of heterozygotes was between that of homozygous null and wild-type mice
• in the elevated plus-maze, the anxious behavior of heterozygotes was indistinguishable from that of homozygous null mice

homeostasis/metabolism
N
• heterozygotes displayed a normal activation of the HPA axis in response to 10 minutes of physical restraint stress
• the increased POMC1 (ACTH) and corticosterone levels produced by male or female heterozygotes did not differ from the values obtained for matched wild-type controls





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory