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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Dll1+
wild type
MGI:2433375
Summary 11 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Dll1tm1Gos/Dll1+ C3Fe.129-Dll1tm1Gos MGI:4821284
ht2
Dll1m1Mhda/Dll1+ C3HeB/FeJ-Dll1m1Mhda MGI:4821283
ht3
Dll1tm1Gos/Dll1+ involves: 129S1/Sv * 129X1/SvJ MGI:4821285
ht4
Dll1tm1.1(cre/ERT2)Cle/Dll1+ Not Specified MGI:5473279
ht5
Dll1tm1.1Mjo/Dll1+ Not Specified MGI:5431505
cn6
Dll1tm1Mjo/Dll1+
Jag1tm1Frad/Jag1+
Tg(Six2-EGFP/cre)1Amc/0
involves: 129/Sv * C57BL/6 * CD-1 MGI:5523694
cn7
Dll1tm1Mjo/Dll1+
Jag1tm1Frad/Jag1tm1Frad
Tg(Six2-EGFP/cre)1Amc/0
involves: 129/Sv * C57BL/6 * CD-1 MGI:5523693
cx8
Dll1tm1Gos/Dll1+
Jag2tm1Grid/Jag2+
involves: 129S1/Sv * 129S1/SvImJ * 129X1/SvJ * C57BL/6J MGI:3776431
cx9
Dll1tm1Gos/Dll1+
Jag2tm1Grid/Jag2tm1Grid
involves: 129S1/Sv * 129S1/SvImJ * 129X1/SvJ * C57BL/6J MGI:3776434
cx10
Dll1tm2Gos/Dll1+
Jag2tm1Grid/Jag2+
involves: 129S1/Sv * 129S1/SvImJ * C57BL/6J MGI:3776430
cx11
Notch2tm1Grid/Notch2+
Dll1tm1Gos/Dll1+
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J MGI:3583235


Genotype
MGI:4821284
ht1
Allelic
Composition
Dll1tm1Gos/Dll1+
Genetic
Background
C3Fe.129-Dll1tm1Gos
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1Gos mutation (2 available); any Dll1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• in female mice
• in female, but not male, mice
• in female, but not male, mice
• female mice exhibit a decrease in CD8alpha,beta T cells compared with wild-type mice
• male mice exhibit an increase in CD8alpha,beta T cells compared with wild-type mice
• in female mice
• in female mice
• in female mice
• in female mice

homeostasis/metabolism
• mice exhibit reduced metabolized energy compared with wild-type mice
• Background Sensitivity: when normalized to individual body weight, male mice congenic on a C3 background exhibit increased metabolized energy while male mice exhibit only a tendency compared with wild-type mice whereas on a 129 background only female mice exhibit increased metabolized energy compared with wild-type mice
• alpha-amylase activity is decreased compared to in wild-type mice

skeleton
• whole body bone mineral content is reduced in female mice and tends to be reduced in male mice compared with wild-type mice
• however, bone content related to body weight is normal
• whole body bone mineral density is reduced compared to in wild-type mice
• specific bone mineral density is increased compared to in wild-type mice
• however, bone content related to body weight is normal

growth/size/body
• average body lean body mass and the average fat to lean mass ratio are reduced compared to in wild-type mice
• at 6 weeks, average body weight is decreased compared with wild-type mice
• average fat-free dry mass is reduced compared to in wild-type mice
• however, body weight normalized to energy uptake is normal
• mice are shorter than wild-type mice
• mice fasted for 2 days exhibit a greater loss of body weight compared with similarly treated wild-type mice

cardiovascular system
• pulse and heart rate in female mice are decreased compared to in wild-type mice
• the Q amplitude is increased compared to in wild-type mice

adipose tissue
• average body fat content and the average fat to lean mass ratio are reduced compared to in wild-type mice

behavior/neurological
• mice consume less food and have a reduced energy uptake compared with wild-type mice
• mice exhibit a tendency towards reduced locomotor activity compared with wild-type mice

digestive/alimentary system
• mice produce less feces than wild-type mice

hematopoietic system
• in female mice
• in female, but not male, mice
• in female, but not male, mice
• female mice exhibit a decrease in CD8alpha,beta T cells compared with wild-type mice
• male mice exhibit an increase in CD8alpha,beta T cells compared with wild-type mice
• in female mice
• in female mice
• in female mice
• in female mice




Genotype
MGI:4821283
ht2
Allelic
Composition
Dll1m1Mhda/Dll1+
Genetic
Background
C3HeB/FeJ-Dll1m1Mhda
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1m1Mhda mutation (1 available); any Dll1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most mice die or are sacrificed within the first months of life

cardiovascular system
• non-significant trend

homeostasis/metabolism

growth/size/body
• in female mice

behavior/neurological
• in female mice

skeleton
• whole body bone mineral content is reduced compared to in wild-type mice
• whole body bone mineral density is reduced compared to in wild-type mice

adipose tissue

immune system
N
• mice exhibit normal levels of CD19+ and CD4+ cells




Genotype
MGI:4821285
ht3
Allelic
Composition
Dll1tm1Gos/Dll1+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1Gos mutation (2 available); any Dll1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• in female but not male mice
• a non-significant reduction

homeostasis/metabolism
• Background Sensitivity: when normalized to individual body weight, female mice on a 129 background exhibit increased metabolized energy while male mice exhibit only a tendency compared with wild-type mice whereas on a congenic C3 background only male mice exhibit increased metabolized energy compared with wild-type mice

growth/size/body
• mice fasted for 2 days exhibit a greater loss of body weight compared with similarly treated wild-type mice

skeleton
• similar to on a C3 background, mice exhibit abnormal bone mineral density compared with wild-type mice

hematopoietic system
• in female but not male mice
• a non-significant reduction




Genotype
MGI:5473279
ht4
Allelic
Composition
Dll1tm1.1(cre/ERT2)Cle/Dll1+
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1.1(cre/ERT2)Cle mutation (0 available); any Dll1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice are health and fertile




Genotype
MGI:5431505
ht5
Allelic
Composition
Dll1tm1.1Mjo/Dll1+
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1.1Mjo mutation (1 available); any Dll1 mutation (45 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• mild to moderate in all mice under normoxic conditions, predominantly cervical
• severe in mice under hypoxic conditions with increased severity in T11 to L5




Genotype
MGI:5523694
cn6
Allelic
Composition
Dll1tm1Mjo/Dll1+
Jag1tm1Frad/Jag1+
Tg(Six2-EGFP/cre)1Amc/0
Genetic
Background
involves: 129/Sv * C57BL/6 * CD-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1Mjo mutation (4 available); any Dll1 mutation (45 available)
Jag1tm1Frad mutation (0 available); any Jag1 mutation (78 available)
Tg(Six2-EGFP/cre)1Amc mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
N
• nephron development appears essentially normal




Genotype
MGI:5523693
cn7
Allelic
Composition
Dll1tm1Mjo/Dll1+
Jag1tm1Frad/Jag1tm1Frad
Tg(Six2-EGFP/cre)1Amc/0
Genetic
Background
involves: 129/Sv * C57BL/6 * CD-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1Mjo mutation (4 available); any Dll1 mutation (45 available)
Jag1tm1Frad mutation (0 available); any Jag1 mutation (78 available)
Tg(Six2-EGFP/cre)1Amc mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• podocytes are almost entirely absent; one allele of Dll1 cannot support podocyte production




Genotype
MGI:3776431
cx8
Allelic
Composition
Dll1tm1Gos/Dll1+
Jag2tm1Grid/Jag2+
Genetic
Background
involves: 129S1/Sv * 129S1/SvImJ * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1Gos mutation (2 available); any Dll1 mutation (45 available)
Jag2tm1Grid mutation (1 available); any Jag2 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hearing/vestibular/ear
• cochlea possess increased inner hair cells but not as many as in Jag2tm1Grid homozygotes

nervous system
• cochlea possess increased inner hair cells but not as many as in Jag2tm1Grid homozygotes




Genotype
MGI:3776434
cx9
Allelic
Composition
Dll1tm1Gos/Dll1+
Jag2tm1Grid/Jag2tm1Grid
Genetic
Background
involves: 129S1/Sv * 129S1/SvImJ * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1Gos mutation (2 available); any Dll1 mutation (45 available)
Jag2tm1Grid mutation (1 available); any Jag2 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hearing/vestibular/ear
• cells within the organ of Corti, including pillar cells, Dieter's cells and Hensen's cells, continue to proliferate between E14.5 and E17.5 unlike in wild-type mice
• cochlea exhibit a greater increase in inner hair cells than in Jag2tm1Grid homozygotes

nervous system
• cochlea exhibit a greater increase in inner hair cells than in Jag2tm1Grid homozygotes




Genotype
MGI:3776430
cx10
Allelic
Composition
Dll1tm2Gos/Dll1+
Jag2tm1Grid/Jag2+
Genetic
Background
involves: 129S1/Sv * 129S1/SvImJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm2Gos mutation (0 available); any Dll1 mutation (45 available)
Jag2tm1Grid mutation (1 available); any Jag2 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hearing/vestibular/ear
• cochlea possess increased inner hair cells but not as many as in Jag2tm1Grid homozygotes

nervous system
• cochlea possess increased inner hair cells but not as many as in Jag2tm1Grid homozygotes




Genotype
MGI:3583235
cx11
Allelic
Composition
Notch2tm1Grid/Notch2+
Dll1tm1Gos/Dll1+
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Dll1tm1Gos mutation (2 available); any Dll1 mutation (45 available)
Notch2tm1Grid mutation (1 available); any Notch2 mutation (97 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
N
• no kidney defects were observed despite expression of both genes in the developing glomerulus





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last database update
03/25/2025
MGI 6.24
The Jackson Laboratory