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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Snhg12tm1.1Chyh
targeted mutation 1.1, Yu-Hua Chen
MGI:8326854
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Snhg12tm1.1Chyh/Snhg12tm1.1Chyh
Tg(Tek-cre)1Ywa/0
involves: C57BL/6J * C57BL/6NCrl * SJL MGI:8326855


Genotype
MGI:8326855
cn1
Allelic
Composition
Snhg12tm1.1Chyh/Snhg12tm1.1Chyh
Tg(Tek-cre)1Ywa/0
Genetic
Background
involves: C57BL/6J * C57BL/6NCrl * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Snhg12tm1.1Chyh mutation (0 available); any Snhg12 mutation (10 available)
Tg(Tek-cre)1Ywa mutation (7 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• in the novel object recognition test, mice spend less time exploring the novel object than controls indicating a memory deficit
• under hypoxia, mice spend much less time in exploring the novel object than control mice in the novel object recognition test
• in the Y maze, mice exhibit a tendency to spend less time in the novel arm compared with controls
• under hypoxia, mice exhibit greater loss of exploring tendency in the novel arm of the Y maze than controls
• in the novel object recognition test, mice spend less time exploring the novel object than controls indicating a memory deficit
• under hypoxia, mice spend much less time in exploring the novel object than control mice in the novel object recognition test

nervous system
• brain shows extravascular accumulation of FITC-dextran (40 kDa) in 3-month-old mice, indicating defective blood brain barrier (BBB)
• leakage of a larger molecule tracer (70 kDa) is not seen as the tracer is constrained to the vessels of the brain
• extravascular fibrin (about 50-50 kDa), but not IgG (about 150 kDa), is detected sporadically in the brain of 3-month-old mice
• extravascular accumulation of both 40 kDa and 70 kDa FITC-dextran tracer is detected in the brain of 3-month-old mice after exposure to 10% oxygen for 7 days indicating aggravated hypoxia-induced BBB disruption
• 3-fold increase in parenchymal accumulation of fibrin and leakage of circulating IgG is detected sporadically in the brain after exposure to prolonged hypoxia
• brains of 3-month-old mice show approximately 20% reduction in NeuN+ cells in the cortex and CA1 hippocampal subfield
• severe vascular leakage of FITC-dextran (40 kDa) is seen in the eyes, indicating defective integrity of blood-retina barrier (BRB
• leakage of a larger molecule tracer (70 kDa) is not seen as the tracer is constrained to the vessels of the retina

homeostasis/metabolism
• extravascular accumulation of both 40 kDa and 70 kDa FITC-dextran tracer is detected in the brain of 3-month-old mice after exposure to 10% oxygen for 7 days
• 3-fold increase in parenchymal accumulation of fibrin and leakage of circulating IgG is detected sporadically in the brain after exposure to prolonged hypoxia

cardiovascular system
• brain shows extravascular accumulation of FITC-dextran (40 kDa) in 3-month-old mice, indicating defective blood brain barrier (BBB)
• leakage of a larger molecule tracer (70 kDa) is not seen as the tracer is constrained to the vessels of the brain
• extravascular fibrin (about 50-50 kDa), but not IgG (about 150 kDa), is detected sporadically in the brain of 3-month-old mice
• extravascular accumulation of both 40 kDa and 70 kDa FITC-dextran tracer is detected in the brain of 3-month-old mice after exposure to 10% oxygen for 7 days indicating aggravated hypoxia-induced BBB disruption
• 3-fold increase in parenchymal accumulation of fibrin and leakage of circulating IgG is detected sporadically in the brain after exposure to prolonged hypoxia

vision/eye
• severe vascular leakage of FITC-dextran (40 kDa) is seen in the eyes, indicating defective integrity of blood-retina barrier (BRB
• leakage of a larger molecule tracer (70 kDa) is not seen as the tracer is constrained to the vessels of the retina





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last database update
04/07/2026
MGI 6.24
The Jackson Laboratory