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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Per2tm1Drw
targeted mutation 1, David R Weaver
MGI:2182832
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Per2tm1Drw/Per2tm1Drw B6.129-Per2tm1Drw/J MGI:5576760
hm2
Per2tm1Drw/Per2tm1Drw involves: 129 MGI:3852066
cx3
Per1tm1Drw/Per1tm1Drw
Per2tm1Drw/Per2tm1Drw
involves: 129S4/SvJae MGI:3852065
cx4
Per2tm1Drw/Per2tm1Drw
Per3tm1Drw/Per3tm1Drw
involves: 129/Sv * 129S4/SvJae MGI:3852067
cx5
Per2tm1Drw/Per2tm1Drw
Tg(PER2*S662D)382Ljp/0
involves: C57BL/6 MGI:3852101
cx6
Per2tm1Drw/Per2tm1Drw
Tg(PER2*S662G)867Ljp/0
involves: C57BL/6 MGI:3852104


Genotype
MGI:5576760
hm1
Allelic
Composition
Per2tm1Drw/Per2tm1Drw
Genetic
Background
B6.129-Per2tm1Drw/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Per2tm1Drw mutation (2 available); any Per2 mutation (71 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• mice show a 25% reduction in the number of vessels in the sciatic nerve indicating that the network of vasa nervorum is reduced
• 40% increase in acellular capillaries in the retina indicating retinal vascular damage

hematopoietic system
• mice exhibit bone marrow neuropathy, with a decrease in tyrosine hydroxylase-positive and neurofilament 200-positive nerve processes at 4 and 12 months of age
• 4 month old mice show a 2-fold increase in lin- sca1+ c-Kit+ (LSK) cells within the bone marrow, indicating a dysfunction in bone marrow progenitor cell (BMPC) release from bone marrow
• BMPCs show decreased colony formation and NO levels
• BMPCs show a 3-fold decrease in proliferation

cellular
• BMPCs show a 3-fold decrease in proliferation

homeostasis/metabolism
• mice are normoglycemic and show better recovery after glucose challenge than wild-type mice

nervous system
• mice exhibit bone marrow neuropathy, with a decrease in tyrosine hydroxylase-positive and neurofilament 200-positive nerve processes at 4 and 12 months of age, respectively

vision/eye
• increase in retinal permeability
• dissociation of tight junctions and adherens junctional integrity in the retina
• 40% increase in acellular capillaries in the retina indicating retinal vascular damage




Genotype
MGI:3852066
hm2
Allelic
Composition
Per2tm1Drw/Per2tm1Drw
Genetic
Background
involves: 129
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Per2tm1Drw mutation (2 available); any Per2 mutation (71 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• all mice become arrhythmic when transferred into dark-dark conditions although at different duration and extent of rhythm persistence
• at the midday 3-hour period, mice wake more than wild-type mice
• at midday, mice exhibit less REM sleep than wild-type mice
• during the 12-hour recovery after 6 hours of prolonged waking, mice exhibit less waking and more short wave sleep compared to similarly treated wild-type mice
• mice are awake more during the mid-third of the light period compared with wild-type mice

homeostasis/metabolism
• the acrophase of core temperature is phase-advanced compared to in wild-type mice




Genotype
MGI:3852065
cx3
Allelic
Composition
Per1tm1Drw/Per1tm1Drw
Per2tm1Drw/Per2tm1Drw
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Per1tm1Drw mutation (2 available); any Per1 mutation (62 available)
Per2tm1Drw mutation (2 available); any Per2 mutation (71 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• mice immediately lose their rhythmicity when transferred into dark-dark conditions (J:69626)
• in free-running conditions, mice become arrhythmic immediately under dark-dark conditions unlike similarly treated wild-type mice (J:95746)
• during the 12-hour light segment, mice wake more and have less slow wave sleep compared to wild-type mice
• during the last two-third of the lights-on period, mice exhibit more wakefulness than wild-type mice
• at midday, mice exhibit less REM sleep than wild-type mice
• in dark dark conditions, mice exhibit arrhythmic pattern of time spent in wakefulness, short wave sleep, and REM sleep unlike similarly treated wild-type mice
• however, the amount of sleep obtained in dark-dark conditions is normal
• during entrained conditions, mice exhibit longer wake bouts during the dark period compared with the light period unlike in wild-type mice
• during entrained conditions, mice exhibit longer short wave sleep and REM sleep bouts during the light segment compared with wild-type mice
• arrhythmic mice exhibit even distribution of wake, short wave sleep, and REM bouts during subjective light and dark periods unlike wild-type mice

homeostasis/metabolism
• the acrophase of core temperature is phase-advanced compared to in wild-type mice

nervous system
• recovery after 6 hours of prolonged waking, mice exhibit an increase in delta power lasting 12 hours during the recovery sleep period compared with wild-type mice in which it lasts 3 hours




Genotype
MGI:3852067
cx4
Allelic
Composition
Per2tm1Drw/Per2tm1Drw
Per3tm1Drw/Per3tm1Drw
Genetic
Background
involves: 129/Sv * 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Per2tm1Drw mutation (2 available); any Per2 mutation (71 available)
Per3tm1Drw mutation (2 available); any Per3 mutation (47 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• as in Per2tm1Drw homozygotes




Genotype
MGI:3852101
cx5
Allelic
Composition
Per2tm1Drw/Per2tm1Drw
Tg(PER2*S662D)382Ljp/0
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Per2tm1Drw mutation (2 available); any Per2 mutation (71 available)
Tg(PER2*S662D)382Ljp mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• circadian period is 0.7 hours longer than in wild-type mice




Genotype
MGI:3852104
cx6
Allelic
Composition
Per2tm1Drw/Per2tm1Drw
Tg(PER2*S662G)867Ljp/0
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Per2tm1Drw mutation (2 available); any Per2 mutation (71 available)
Tg(PER2*S662G)867Ljp mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• circadian period is shortened 3.3 hours compared to in wild-type mice
• however, mice under LD10.5:10.5 conditions exhibit normal on-off activity patterns





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