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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Shank3tm2.2Yhj
targeted mutation 2.2, Yong-hui Jiang
MGI:5800311
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Shank3tm2.2Yhj/Shank3tm2.2Yhj B6.129S7(C)-Shank3tm2.2Yhj MGI:5800419
hm2
Shank3tm2.2Yhj/Shank3tm2.2Yhj involves: 129S7/SvEvBrd * C57BL/6J MGI:5800420


Genotype
MGI:5800419
hm1
Allelic
Composition
Shank3tm2.2Yhj/Shank3tm2.2Yhj
Genetic
Background
B6.129S7(C)-Shank3tm2.2Yhj
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Shank3tm2.2Yhj mutation (0 available); any Shank3 mutation (85 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• mice do not exhibit spontaneous seizures
• reduced relative to grey matter
• all five white matter tracts except the fornix exhibit reduced volume compared with wild-type mice
• reduced spinal trigeminal tract
• decreased spine density on motor sensory neurons and striatum compared with wild-type mice
• however, spine density is normal in the hippocampus
• decreased glutamatergic synapses compared with wild-type mice
• shorter and thinner striatal synapses compared with wild-type mice
• altered functional connectivity in a frontostriatal circuit
• motor sensory neurons exhibit enhanced excitability compared with wild-type mice
• however, treatment with a Grm5 positive allosteric modulate (CDPPB) rescues hyper-excitability
• reduced frequency in motor sensory neurons compared with wild-type mice
• treatment with a Grm5 positive allosteric modulate (CDPPB) does not change the frequency or amplitude of sEPSCs
• following high-frequency stimulation
• however, treatment with a Grm5 positive allosteric modulate (CDPPB) rescues LTD without altering the probability of presynaptic release

behavior/neurological
• mice fail to show preference for a home nest versus an unfamiliar nest compared with wild-type mice
• small enhancement
• however, mice exhibit normal cured conditioning
• in an arena for the novel object recognition memory test, in a novel larger arena or Morris water maze, mice try to escape the test chamber unlike wild-type mice
• however, mice placed into clean home cages do not try to escape
• impaired striatal learning in a bar-press food task
• however, treatment with a Grm5 positive allosteric modulate (CDPPB) partially rescues instrumental learning
• impaired reverse learning in a Morris water maze
• however, mice exhibit normal acquisition performance in a Morris water maze and normal swimming
• mice spend less time in the center of the open field compared with wild-type mice
• in a light-dark emergence test, mice exhibit delayed entry into the lighted chamber and made fewer transitions between chambers compared with wild-type mice
• mice engage in fewer of the 16 holes in a hole-board test with a tendency to re-investigate the same hole compared with wild-type mice
• mice exhibit increased grooming during social investigation tests compared with wild-type mice
• treatment with a Grm5 positive allosteric modulate (CDPPB) increases self-grooming
• however, treatment with a Grm5 antagonist (MPEP) normalizes grooming
• on an accelerating and steady-speed rotarods despite normal grip strength
• in home cage and an open field with a tendency toward decreased rearing
• however, treatment with a Grm5 antagonist (MPEP) normalizes activity in an open field
• mice fail to establish stable hierarchies unlike wild-type mice
• mice exhibit longer and more frequent non-reciprocal social investigation behavior with C3H mice compared with wild-type mice
• however, mice exhibit normal levels of social interest
• fewer and shorter duration compared with wild-type mice
• lower frequencies and amplitudes of calls compared with wild-type mice
• male mice emit fewer calls with shorter duration and reduced amplitude compared with wild-type mice
• however, peak frequency is normal

hearing/vestibular/ear
• delayed ear opening at P4

integument
• in 16 of 30 mice at 5.5 months around the eyes, on the ears, back of the head, and under the chin of mice caused by excessive grooming

limbs/digits/tail
• delayed paw position at P4

taste/olfaction
• mice exhibit less robust habituation-dishabituation to olfactory stimuli compared with wild-type mice
• however, mice exhibit normal sniffing a social stimulus




Genotype
MGI:5800420
hm2
Allelic
Composition
Shank3tm2.2Yhj/Shank3tm2.2Yhj
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Shank3tm2.2Yhj mutation (0 available); any Shank3 mutation (85 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological

integument
• mice at 5.5 months around the eyes, on the ears, back of the head, and under the chin of mice caused by excessive grooming





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