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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Arid1bem1Iha
endonuclease-mediated mutation 1, Izuho Hatada
MGI:6286071
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Arid1bem1Iha/Arid1bem1Iha C57BL/6J-Arid1bem1Iha MGI:6286137
ht2
Arid1bem1Iha/Arid1b+ C57BL/6J-Arid1bem1Iha MGI:6286096


Genotype
MGI:6286137
hm1
Allelic
Composition
Arid1bem1Iha/Arid1bem1Iha
Genetic
Background
C57BL/6J-Arid1bem1Iha
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Arid1bem1Iha mutation (0 available); any Arid1b mutation (110 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• no offspring are produced from heterozygous matings




Genotype
MGI:6286096
ht2
Allelic
Composition
Arid1bem1Iha/Arid1b+
Genetic
Background
C57BL/6J-Arid1bem1Iha
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Arid1bem1Iha mutation (0 available); any Arid1b mutation (110 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• average body weight is lower at 10-13 weeks of age
• mice with hydrocephalus have reduced body weight relative to mutant mice without hydrocephalus
• however, mice exhibit normal body temperature

behavior/neurological
• in the cued test, the freezing time of mutants is increased without conditional stimulus on the day after conditioning and the tendency is maintained for 30 days
• in the open field test, mice exhibit reduced exploratory behaviors, including distance traveled and vertical activity, however time spend in the center area does not differ from wild-type mice
• in the Barnes maze, mutants exhibit a similar latency in reaching the target across acquisition sessions as wild-type mice, but in the probe trial 24 hours after the acquisition, mutants spend more time around the target hole than wild-type mice, suggesting normal spatial learning ability and improved memory
• in the Barns maze, mutants exhibit elevated perserveration, as indicated by a longer latency in reaching a target box in the opposite location during the reversal task
• in the elevated plus maze, mice show a lower number of entries into open and closed arms, a lower percentage of entries into open arms, spend less time in the open arms, and travel a lower total distance indicating increased anxiety-like behaviors
• exposure to intense stimuli such as electric foot shock or forced swim test induces larger locomotor responses than in wild-type mice
• in the contextual and cued fear conditioning test, mutants show less freezing during conditioning than wild-type mice, similar levels of freezing as wild-type mice in the context test, and more freezing in the altered context in the absence of a conditioned stimulus indicating an increase in fear generalization
• freezing time caused by conditional stimulus in the cued test 30 days after conditioning is longer suggesting enhanced long-term fear memory
• startle reflex responses caused by 110 dB stimuli are reduced
• however, startle responses caused by 120 dB are similar as in wild-type mice
• in the rotarod test, the latency of falling off the accelerating rotating rod is lower
• in the balance beam test, mice exhibit slower movement speed, longer duration of movement, and higher number of slips when crossing wide or narrow beams
• the number of movements is higher on the narrow beam and the latency of reaching the goal is larger on the wide beam
• grip strength and the length of falling off the wire mesh in the wire hang test are lower
• in the open field test, mice show stereotypic counts that possibly reflect repetitive behaviors
• in the hot-plate test, latency of paw responses to a nociceptive stimulus tend to be higher
• mice exhibit altered social behavior in the home cage, showing increased contact time with each other, however, overall activity levels are normal
• however, in a novel environment, mice exhibit normal social behavior in the social interaction test and the three-chamber test

cardiovascular system
• mice with hydrocephalus exhibit brains with a cavity with new vascularization

nervous system
• mice with hydrocephalus exhibit brains with a cavity with new vascularization
• 5 of 9 mice exhibit severe hydrocephalus
• mice with hydrocephalus have enlarged lateral ventricle
• mice with hydrocephalus show corruption of the pyramidal cell layer of the hippocampus
• in response to a 110 dB stimulus, heterozygotes exhibit levels of prepulse inhibition (PPI) stimulus similar to wild-type littermates but at 120 dB, the PPI is lower than that of wild-type mice

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
autism spectrum disorder DOID:0060041 J:271850





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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
04/30/2024
MGI 6.23
The Jackson Laboratory