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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Oxt+
wild type
MGI:2436229
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Oxttm1Wsy/Oxt+ involves: 129S/SvEv * C57BL/6 MGI:3603413
cn2
Mc4rtm1Lowl/Mc4rtm1Lowl
Oxttm1.1(cre)Dolsn/Oxt+
involves: 129S4/SvJaeSor * 129S6/SvEvTac * C57BL/6 MGI:5609690
cn3
Crhtm1.1(cre)Dolsn/Crh+
Mc4rtm1Lowl/Mc4rtm1Lowl
Oxttm1.1(cre)Dolsn/Oxt+
involves: 129S4/SvJaeSor * C57BL/6 MGI:5609693
cn4
Gt(ROSA)26Sortm1(HBEGF)Awai/Gt(ROSA)26Sortm9(CAG-tdTomato)Hze
Oxttm1.1(cre)Dolsn/Oxt+
involves: 129S6/SvEvTac * C57BL/6 MGI:5523454


Genotype
MGI:3603413
ht1
Allelic
Composition
Oxttm1Wsy/Oxt+
Genetic
Background
involves: 129S/SvEv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Oxttm1Wsy mutation (1 available); any Oxt mutation (18 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
N
• heterozygotes exhibit neither significant differences in aggressiveness and exploratory activity nor sensorimotor deficits in olfaction, visual acuity, coordination or forearm strength tasks

digestive/alimentary system
• heterozygotes display a significantly reduced frequency of defecation relative to wild-type mice




Genotype
MGI:5609690
cn2
Allelic
Composition
Mc4rtm1Lowl/Mc4rtm1Lowl
Oxttm1.1(cre)Dolsn/Oxt+
Genetic
Background
involves: 129S4/SvJaeSor * 129S6/SvEvTac * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Mc4rtm1Lowl mutation (2 available); any Mc4r mutation (46 available)
Oxttm1.1(cre)Dolsn mutation (1 available); any Oxt mutation (18 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body




Genotype
MGI:5609693
cn3
Allelic
Composition
Crhtm1.1(cre)Dolsn/Crh+
Mc4rtm1Lowl/Mc4rtm1Lowl
Oxttm1.1(cre)Dolsn/Oxt+
Genetic
Background
involves: 129S4/SvJaeSor * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Crhtm1.1(cre)Dolsn mutation (0 available); any Crh mutation (39 available)
Mc4rtm1Lowl mutation (2 available); any Mc4r mutation (46 available)
Oxttm1.1(cre)Dolsn mutation (1 available); any Oxt mutation (18 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body




Genotype
MGI:5523454
cn4
Allelic
Composition
Gt(ROSA)26Sortm1(HBEGF)Awai/Gt(ROSA)26Sortm9(CAG-tdTomato)Hze
Oxttm1.1(cre)Dolsn/Oxt+
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(HBEGF)Awai mutation (4 available); any Gt(ROSA)26Sor mutation (1095 available)
Gt(ROSA)26Sortm9(CAG-tdTomato)Hze mutation (7 available); any Gt(ROSA)26Sor mutation (1095 available)
Oxttm1.1(cre)Dolsn mutation (1 available); any Oxt mutation (18 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
N
• on a standard chow diet, 9 week-old mice given an injection of diphtheria toxin, with a second injection 1 week later, to ablate oxytocin-expressing neurons (lesioned mice), showed comparable body weight through 20 weeks of age
• when 9 week-old mice were given an injection of diphtheria toxin, with a second injection 1 week later, and maintained on a high fat diet following treatment, males displayed comparable body weight to controls up to 14 weeks of age, then develop higher body weight relative to controls at 22 weeks of age; in contrast, females show no difference in body weight compared to controls up to 22 weeks of age

adipose tissue
• diphtheria toxin-treated males (lesioned) show significantly higher fat mass; lean masses are comparable

behavior/neurological
N
• average daily food consumption measured over one week in control and lesioned (diphtheria toxin-treated) males are similar on normal chow and high fat diets
• treatment of control and lesioned mice with MTII (melanocortin receptor agonist) reduced feeding in the dark to similar degrees in both cohorts

homeostasis/metabolism
• when 9 week-old mice were given an injection of diphtheria toxin, with a second injection 1 week later, and maintained on a high fat diet following treatment, males displayed comparable body weight to controls up to 14 weeks of age, then develop higher body weight relative to controls at 22 weeks of age; in contrast, females show no difference in body weight compared to controls up to 22 weeks of age
• lesioned mice on a high fat diet show lower oxygen consumption during a 2 day period of high fat diet, particularly during the dark cycle, compared to controls; during a 2 day period on normal chow diet, oxygen consumption is comparable between the two genotypes
• after overnight fasting, leptin administration caused a 25% reduction in 2-hour feeding in lesioned mice and had no significant effect on 4- and 24-hour feeding whereas control mice treated with leptin showed a 25% decrease in 2- and 4-hour feeding and blunted 24-hour feeding by 20%





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last database update
03/18/2025
MGI 6.24
The Jackson Laboratory