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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Slc1a2tm1Kta
targeted mutation 1, Kohichi Tanaka
MGI:2449707
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Slc1a2tm1Kta/Slc1a2tm1Kta B6.129P2-Slc1a2tm1Kta MGI:4417920
hm2
Slc1a2tm1Kta/Slc1a2tm1Kta involves: 129P2/OlaHsd * C57BL/6 MGI:3033260
ht3
Slc1a2tm1Kta/Slc1a2+ involves: 129P2/OlaHsd * C57BL/6 MGI:4838971
cx4
Slc1a2tm1Kta/Slc1a2+
Tg(SOD1*G93A)1Gur/0
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6J * SJL/J MGI:4838970


Genotype
MGI:4417920
hm1
Allelic
Composition
Slc1a2tm1Kta/Slc1a2tm1Kta
Genetic
Background
B6.129P2-Slc1a2tm1Kta
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Slc1a2tm1Kta mutation (0 available); any Slc1a2 mutation (40 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die within 3 weeks of birth




Genotype
MGI:3033260
hm2
Allelic
Composition
Slc1a2tm1Kta/Slc1a2tm1Kta
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Slc1a2tm1Kta mutation (0 available); any Slc1a2 mutation (40 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• only about 50% survive until after 6 weeks of age

behavior/neurological
• subconvulsive doses of pentylenetetrazole (PTZ) lead to high voltage sharp wave bursts
• explosive running followed by maintained opisthotonus and straub tail
• death usually followed within a few minutes of seizure
• survivors of a seizure resumed normal behavior but developed additional seizures later leading to death

growth/size/body
• although body weight was normal at birth, homozygous mice gained weight more slowly after birth

nervous system
• subconvulsive doses of pentylenetetrazole (PTZ) lead to high voltage sharp wave bursts
• explosive running followed by maintained opisthotonus and straub tail
• death usually followed within a few minutes of seizure
• survivors of a seizure resumed normal behavior but developed additional seizures later leading to death
• 68% more brain edemas resulting from cold injury and size of edemas are much larger
• selective neuronal degeneration in the hippocampal CA1 in mice aged 4-8 weeks
• neuronal loss in the pyramidal layer of CA1 24 hours after brief (5 min) hippocampal ischemia leading to a build up of glutamate concentration
• by 4 days after ischemia, neuronal loss is seen throughout CA1 and CA3
• longer periods of ischemia are as damaging to wild-type mice as to homozygous mutants

homeostasis/metabolism
• 68% more brain edemas resulting from cold injury and size of edemas are much larger




Genotype
MGI:4838971
ht3
Allelic
Composition
Slc1a2tm1Kta/Slc1a2+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Slc1a2tm1Kta mutation (0 available); any Slc1a2 mutation (40 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• only have 65% glutamate transport when compared with wild-type mice in lumbar spinal cord and cerebral cortex




Genotype
MGI:4838970
cx4
Allelic
Composition
Slc1a2tm1Kta/Slc1a2+
Tg(SOD1*G93A)1Gur/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * C57BL/6J * SJL/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Slc1a2tm1Kta mutation (0 available); any Slc1a2 mutation (40 available)
Tg(SOD1*G93A)1Gur mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• shortened lifespan (137 1.7 vs. 142 1.4 days)

cellular
• reduced glutamate transport in lumbar spinal cord at 120 days of age, compare with Tg(SOD1*G93A)1Gur mice

nervous system
• increase in the rate of motor decline accompanied by earlier motor neuron loss
• accelerated motor neuron loss at 120 days of age, compare with Tg(SOD1*G93A)1Gur mice
• significant declines occur between 105 and 120 days (42% reduction) and between 120 days and end stage, compared with between 120 days and endstage (56%) in Tg(SOD1*G93A)1Gur mice





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last database update
04/16/2024
MGI 6.23
The Jackson Laboratory