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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Gdi1tm1Toni
targeted mutation 1, Daniela Toniolo
MGI:2388605
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ot1
Gdi1tm1Toni/Y B6N.129S7-Gdi1tm1Toni MGI:3833428
ot2
Gdi1tm1Toni/Y either: B6.129S7-Gdi1tm1Toni or (involves: 129S7/SvEvBrd * C57BL/6J) or (involves: 129S7/SvEvBrd * C57BL/6J * DBA/2) MGI:3833426


Genotype
MGI:3833428
ot1
Allelic
Composition
Gdi1tm1Toni/Y
Genetic
Background
B6N.129S7-Gdi1tm1Toni
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gdi1tm1Toni mutation (0 available); any Gdi1 mutation (15 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• trace fear conditioning response is impaired when the intertraining interval is 15 or 26 min but not when the intertraining interval is 37 or 60 min
• poor performance in an 8 arm radial maze
• performance is poor compared to controls when mice are trained in a 4 arm maze and tested 24 h later in an 8 arm maze but not when testing occurs 48 h after training

nervous system
• at P23 and P90 severe depletion of synaptic vesicles is seen in synaptic terminals in the stratum radiatum of the CA1 region of the hippocampus
• display an increased facilitation during the initial phase to tetanic stimulation
• at the end of the train synapses reach a milder depression plateau
• decrease in the depression in glutamate release following multiple pulses of KCL
• glutamate release evoked by 15 nm KCL is reduced

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
non-syndromic X-linked intellectual disability DOID:0050776 OMIM:300716
OMIM:PS309530
J:142806




Genotype
MGI:3833426
ot2
Allelic
Composition
Gdi1tm1Toni/Y
Genetic
Background
either: B6.129S7-Gdi1tm1Toni or (involves: 129S7/SvEvBrd * C57BL/6J) or (involves: 129S7/SvEvBrd * C57BL/6J * DBA/2)
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gdi1tm1Toni mutation (0 available); any Gdi1 mutation (15 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• impaired trace fear conditioning
• however, delay fear conditioning behavior is similar to controls
• in a radial maze after training mice perform just barely above the chance level unlike wild-type controls which after training show nearly perfect performance
• decrease in aggression in a resident intruder assay
• mice spend more time sniffing the snout end of intruders compared to controls

nervous system
• in the hilar region of CA3 pyramidal cells appear more scattered
• increase in the frequency of trilamination of suprapyramidal mossy fibers
• significant depression of the slope of the field EPSP in the first 5 minutes post tetanus

homeostasis/metabolism
N
• despite abnormalities in aggressive behavior, serum testosterone levels are similar to controls

taste/olfaction
N
• despite abnormalities in aggressive behavior, no abnormalities in olfaction are detected





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)
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last database update
04/30/2024
MGI 6.23
The Jackson Laboratory