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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(HCRT-MJD)1Stak
transgene insertion 1, Takeshi Sakurai
MGI:2387763
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
tg1
Tg(HCRT-MJD)1Stak/? B6.Cg-Tg(HCRT-MJD)1Stak MGI:3767401
tg2
Tg(HCRT-MJD)1Stak/? involves: C57BL/6 * DBA/1 MGI:3767400


Genotype
MGI:3767401
tg1
Allelic
Composition
Tg(HCRT-MJD)1Stak/?
Genetic
Background
B6.Cg-Tg(HCRT-MJD)1Stak
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(HCRT-MJD)1Stak mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• mice fail to exhibit as substantial of an increase in locomotor activity during dark phase as in wild-type mice when exposed to a novel environment
• at night, mice consume less water than wild-type mice due to reduced duration of wake time
• initially, upon waking, mice consume more water than wild-type mice
• at night, mice consume less food than wild-type mice due to reduced duration of wake time
• at night, mice exhibit decreased activity compared to wild-type mice due to reduced duration of wake time
• mice exhibit more frequent short and fewer long episodes of wake and non-rapid eye movement (NREM) sleep compared to wild-type mice
• mice exhibit more REM sleep than wild-type mice during the night and direct transition from wake to REM sleep (DREM) unlike wild-type mice
• mice exhibit shorter transition from NREM to REM and more episodes of REM at night than wild-type mice

homeostasis/metabolism
• body temperature is higher than in wild-type between ZT14 and ZT18 and lower between ZT22 and ZT4 likely due to larger sleep-state dependent fluctuations in body temperature compared to in wild-type mice
• especially during the day

growth/size/body
• female but not male mice over 150 days in age have significant increases in body weight compared to littermate controls
• Background Sensitivity: the increase is not as great as found in mice with the same transgene on a mixed (C57BL/6 and DBA/1) background

nervous system
• mice exhibit a higher electroencephalogram power densities at the theta and beta band during DREM than in wild-type mice indicating a cataplexy-like state




Genotype
MGI:3767400
tg2
Allelic
Composition
Tg(HCRT-MJD)1Stak/?
Genetic
Background
involves: C57BL/6 * DBA/1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(HCRT-MJD)1Stak mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• during the dark phase, mice consume 30% less food than wild-type mice
• during the dark phase, mice consume 30% less food than wild-type mice
• during the dark period
• mice exhibit direct transitions from wake to REM unlike wild-type mice
• mice exhibit a decrease in the intervals between successive REM sleep periods and shorter latency to REM sleep compared to wild-type mice
• during the light period, mice exhibit shorter REM sleep and wake episodes compared to wild-type mice
• mice show severe sleep/wake fragmentation
• beginning at 6 weeks of age, mice exhibit narcoleptic episodes with abrupt cessation of purposeful motor activity in which a sustained posture change is held until motion is abruptly resumed
• narcoleptic episodes occur during grooming or excited ambulation, last a few seconds to 150 seconds, and are often followed by increased feeding and drinking behaviors

homeostasis/metabolism
• 53% increase in the circulating leptin levels to bodyweight ratio in female but not male mice

growth/size/body
• at 10 to 12 weeks of age, mice exhibit increased body weight compared to wild-type mice (J:69620)
• female but not male mice over 100 days in age have significant increases in body weight compared to littermate controls (J:128233)

nervous system
• by 2 and 12 weeks of age 56% and 99%, respectively, of orexin-containing neurons are lost (J:69620)





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