nervous system
N |
• development of olfactory sensory neurons is similar to controls
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Allele Symbol Allele Name Allele ID |
Omptm4(cre)Mom targeted mutation 4, Peter Mombaerts MGI:3692980 |
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Summary |
11 genotypes
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• development of olfactory sensory neurons is similar to controls
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• impaired olfactory sensory neuron differentiation
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• decrease in the number of mature olfactory sensory neurons and increase in the number of immature neurons
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• the main olfactory epithelium is mostly devoid of mature olfactory sensory neurons
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• decrease in the number of mature olfactory sensory neurons and increase in the number of immature neurons
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• impaired olfactory sensory neuron differentiation
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• the main olfactory epithelium is mostly devoid of mature olfactory sensory neurons
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• decrease in the number of mature olfactory sensory neurons and increase in the number of immature neurons
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• the main olfactory epithelium is mostly devoid of mature olfactory sensory neurons
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• decrease in the number of mature olfactory sensory neurons and increase in the number of immature neurons
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• the main olfactory epithelium is mostly devoid of mature olfactory sensory neurons
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• decrease in the number of mature olfactory sensory neurons and increase in the number of immature neurons
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• fewer number of mature olfactory receptor neurons
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• fewer number of mature olfactory receptor neurons
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• fewer number of mature olfactory receptor neurons
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• fewer number of mature olfactory receptor neurons
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• fewer number of mature olfactory receptor neurons
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• olfactory sensory neurons exhibit prolonged termination compared with control cells
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• mice exhibit reduced ability to locate odors, as indicated by decreased body weight at weaning, compared with control mice
• mice exhibit impaired ability to find a buried pellet compared with control mice
• however, mice normally locate a visible pellet
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• olfactory sensory neurons exhibit prolonged termination compared with control cells
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• at weaning likely due to impaired olfaction
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• although mice are grossly normal, those born into litters of 7 or more display compromised survival
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• olfactory glomerular structures and axon bundles are somewhat altered
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• 15 odorants tested including the pheromones 2-heptanone, DMP, and TMT
• "electro-olfactogram" response to all odorants is significantly diminished
• TEA response becomes positive rather than the typical negative
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• mice deprived of food for 1 day take 518 seconds to find a buried food pellet scented with peanut butter whereas controls take 26-27 seconds
• all mice find the pellet rapidly when placed on the surface of the bedding
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• 15 odorants tested including the pheromones 2-heptanone, DMP, and TMT
• "electro-olfactogram" response to all odorants is significantly diminished
• TEA response becomes positive rather than the typical negative
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• 15 odorants tested including the pheromones 2-heptanone, DMP, and TMT
• "electro-olfactogram" response to all odorants is significantly diminished
• TEA response becomes positive rather than the typical negative
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• mice exhibit normal structure of the olfactory epithelium
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• faster response kinetics and stimuli integration using amyl acetate and heptaldehyde
• neurons fire action potentials more faithfully in response to repeated stimuli compared with wild-type mice
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• mice take longer to find a buried food pellet when a background of the same odor is present compared with wild-type mice
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N |
• mice exhibit normal feeding and mating behaviors
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• faster response kinetics and stimuli integration using amyl acetate and heptaldehyde
• neurons fire action potentials more faithfully in response to repeated stimuli compared with wild-type mice
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• faster response kinetics and stimuli integration using amyl acetate and heptaldehyde
• neurons fire action potentials more faithfully in response to repeated stimuli compared with wild-type mice
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• fail to show a preference for peanut butter odor
• fail to show an aversive reaction to 2-methyl butyric acid
• following reward training, fail to show preference for the trained scent, carvone
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• olfactory sensory neuron layer is thinner than control
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• number of OMP-positive olfactory neurons is decreased in epithelium, however, number of Olfr1507-positive neurons is not reduced
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• cell death is 5X higher in olfactory epithelium than in controls
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• olfactory neurons in vitro are unresponsive to an odorant mix
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• in the buried-food-seeking test, mice take longer to locate food than controls
• in the odorant preference test, mice exhibit a reduced preference to milk and peanut butter relative to water
• mice do not exhibit avoidance behavior in response to the odorant butyric acid
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• overall, 11% of homozygous pups survive rather than the expected 25%
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• some pups die immediately after birth, especially pups from a litter size greater than 6
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• olfactory sensory neuron layer is thinner than control
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• number of OMP-positive olfactory neurons is decreased in epithelium, however, number of Olfr1507-positive neurons is not reduced
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• olfactory sensory neuron layer is thinner than control
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• number of OMP-positive olfactory neurons is decreased in epithelium, however, number of Olfr1507-positive neurons is not reduced
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• olfactory sensory neurons exhibit a 5 fold increase in cell death
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• olfactory sensory neurons exhibit a 5 fold increase in cell death
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• olfactory sensory neuron layer is thinner than control
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• number of OMP-positive olfactory neurons is decreased in epithelium, however, number of Olfr1507-positive neurons is not reduced
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• number of glomeruli is reduced and average size of glomeruli is smaller than control
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• olfactory neurons in vitro are unresponsive to an odorant mix
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• olfactory sensory neuron layer is thinner than control
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• number of OMP-positive olfactory neurons is decreased in epithelium, however, number of Olfr1507-positive neurons is not reduced
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• cell death is 5X higher in olfactory epithelium than in controls
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• olfactory neurons in vitro are unresponsive to an odorant mix
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N |
• mice do not exhibit anxiety, depression or mobility deficits
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• with IFT88 absent from type B olfactory sensory neurons, homozygotes fail to respond to NaHS by the usual dose-dependent avoidance behavior or the increased stress-induced self-grooming that occurs that occurs in controls, but respond with normal avoidance and increased self-grooming to hypoxia
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• Type B olfactory sensory neurons of the main olfactory epithelium respond normally to hypoxia but fail to respond to NaHS
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• due to the lack of vomeronasal perception of f-MKKFRW, homozygotes fail to display the normal avoidance behaviour to this core peptide of an enteric bacterial virulence regulator
due to the lack of vomeronasal perception of f-MKKFRW, homozygotes fail to display the normal avoidance behaviour to this core peptide of an enteric bacterial virulence regulator
due to the lack of vomeronasal perception of f-MKKFRW, homozygotes fail to display the normal avoidance behaviour to this core peptide of an enteric bacterial virulence regulator
ue to the lack of vomeronasal perception of f-MKKFRW, homozygotes fail to display the normal avoidance behaviour to this core peptide of an enteric bacterial virulence regulator
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• fail to respond to the f-MKKFRW peptide, which is the core peptide motif from the enteric bacterial master virulence regulator MgrB
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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 12/10/2024 MGI 6.24 |
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