About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:7541228
Allelic
Composition
Hnrnph2em1Jpat/Y
Genetic
Background
C57BL/6J-Hnrnph2em1Jpat
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hnrnph2em1Jpat mutation (1 available); any Hnrnph2 mutation (9 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• less than 15% of males live to 8 weeks of age
• mice are born at a lower frequency than expected (36% versus 64% wild-type) indicating partial prental lethality of males

behavior/neurological
• mice show an impairment of balance in the beam walking test
• mice show an impairment of balance and coordination in the beam walking test
• rotarod performance is impaired
• latency to fall from a wire cage top is decreased and grip strength is decreased
• P21 mice exhibit increased susceptibility to audiogenic seizures (bell producing 120-125 dB sosund), with increased incidence and severity of audiogenic seizures
• however, no impairment is seen in optomotor response, hot plate, or scent habituation tests

craniofacial
• males exhibit craniofacial dysmorphology, with a difference in global skull shape based on EDMA
• reduction in skull length at 6 weeks of age
• mice often have domed heads, typically associated with hydrocephalus
• reduction in nose length at 6 weeks of age

growth/size/body
• reduction in nose length at 6 weeks of age

nervous system
• P21 mice exhibit increased susceptibility to audiogenic seizures (bell producing 120-125 dB sosund), with increased incidence and severity of audiogenic seizures
• however, no impairment is seen in optomotor response, hot plate, or scent habituation tests
• 6-week-old and 24-week-old mice have moderate hydrocephalus, with 75% incidence at 6 weeks and 100% incidence at 24 weeks
• however, no evidence of aqueduct blockage or abnormal morphology of cilia on ependymal cells lining the dilated ventricles, or motile ciliary dysfunction in the respiratory system
• no evidence of inflammation in the brain, no changes in central nervous system myelination and no cell loss or altered lamination in the visual, somatosensory, or somatomotor cortex
• cultured cortical neurons show defects in dendritic arborization, with reduced dendrite branch points, dendrite branch levels, and total dendritic lengths that lead to a large reduction in dendritic arbor complexity
• mice show increased delta power and epileptiform activity on the EEG; mice have an increased percentage of time spent exhibiting spiking events during the dark phase

skeleton
• reduction in skull length at 6 weeks of age
• mice often have domed heads, typically associated with hydrocephalus

vision/eye
• increase in interorbital distance at 6 weeks of age


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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/12/2024
MGI 6.24
The Jackson Laboratory