behavior/neurological
• Background Sensitivity: under constant darkness, mice on a C57BL/6 congenic background exhibit prolonged activity periods compared with mice on a congenic BALB/cJ background
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Allele Symbol Allele Name Allele ID |
Clock+ wild type MGI:2432679 |
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Summary |
7 genotypes
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• Background Sensitivity: under constant darkness, mice on a C57BL/6 congenic background exhibit prolonged activity periods compared with mice on a congenic BALB/cJ background
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• in a forced-swim test, female mice exhibit less immobility compared with wild-type mice but as much as in Clockm1Jt homozygotes
• however, anxiety and depressive-like behavior are not increased
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• during constant darkness in an open field, mice spend more time exploring the center than wild-type mice but as much as in Clockm1Jt homozygotes
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• in female mice in an open field test
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• circadian period gradually lengthens over the first 39 days of constant darkness, with an average of 24.4 hours compared to 23.2 hours in wild-type
(J:18005)
• increased 0.6 hr upon exposure to constant darkness
(J:198519)
• Background Sensitivity: mice on a C57BL/6J isogenic background exhibit a longer activity period under constant darkness than mice on a (BALB/cJ x C57BL/6J)F1 or BALB/cJ congenic background
(J:198519)
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• in constant darkness, mice exhibit a 1 hour increase in free-running rhythm of locomotor activity compared with wild-type mice
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• mice spend 9% less time asleep during the entire 24 hour light dark cycle compared with wild-type mice
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• during the 12 hour dark phase, mice spend less time in non-REM sleep than wild-type mice
• during the 12 hour dark phase, REM sleep is shorter than in wild-type mice
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• mice exhibit decreased plasminogen activator inhibitor-1 (PAI-1) levels compared with wild-type mice
• at zeitgeber time (ZT) 14, mice fail to exhibit a decreased in total plasma tissue plasminogen activator (tPA) levels compared with wild-type mice
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• diurnal variations in time to thrombotic vascular occlusion (TTVO) subsequent to photochemical injury observed in similarly treated wild-type mice
• TTVO subsequent to photochemical injury is increased at zeitgeber time (ZT) 14 compared with similarly treated wild-type mice
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• increased 0.3 hr upon exposure to constant darkness
• Background Sensitivity: mice on a (BALB/cJ x C57BL/6J)F1 background exhibit a shorted extension of activity period upon exposure to constant darkness compared with mice on a C57BL/6J congenic background
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
N |
• mice on a BALB/cJ congenic background exhibit normal activity period under constant darkness unlike mice on a C57BL/6J isogenic background
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• Background Sensitivity: shorter period compared to in mice on a background with more C57BL/6 contribution
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• shorter period compared to Clockm1Jt heterozygotes
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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 06/12/2024 MGI 6.13 |
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