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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ret+
wild type
MGI:2152812
Summary 18 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Rettm1Giro/Ret+ 129.129P2-Rettm1Giro MGI:3819169
ht2
Rettm2.1Cos/Ret+ involves: 129S1/Sv * C57BL/6J * FVB/N MGI:3583335
ht3
Rettm1Cos/Ret+ involves: 129S/SvEv * 129S1/Sv * 129X1/SvJ MGI:5295936
ht4
Rettm1Cos/Ret+ involves: 129S/SvEv * C57BL/6 MGI:3588575
ht5
Rettm1Cti/Ret+ involves: 129S/SvEv * C57BL/6J MGI:3628455
ht6
Rettm1Giro/Ret+ involves: 129/Sv * 129P2/OlaHsd * C57BL/6 MGI:3819168
ht7
Rettm3.1(Bcl2l1)Heno/Ret+ involves: 129/Sv * C57BL/6 MGI:4459059
ht8
Rettm14(Gfra1)Jmi/Ret+ involves: 129X1/SvJ MGI:3801031
ht9
Rettm1Jmi/Ret+ involves: 129X1/SvJ MGI:5585303
ht10
Rettm3(RET)Jmi/Ret+ Not Specified MGI:3487263
ht11
Rettm3.1(RET)Jmi/Ret+ Not Specified MGI:3487264
ht12
Rettm2(cre/ERT2)Ddg/Ret+ Not Specified MGI:4455337
cx13
Islr2tm1.1Ddg/Islr2tm1.1Ddg
Rettm1.1Ddg/Ret+
involves: 129S6/SvEvTac * BALB/cJ * C57BL/6 MGI:4413451
cx14
Pax2tm1Pgr/Pax2+
Rettm1Cos/Ret+
involves: 129S/SvEv * 129S1/Sv * 129X1/SvJ MGI:5295884
cx15
Rettm1Cos/Ret+
Wnt11tm1Amc/Wnt11tm1Amc
involves: 129S/SvEv * 129S1/Sv * 129X1/SvJ * MF1 MGI:2665019
cx16
Rettm1Cos/Ret+
Wnt11tm1Amc/Wnt11+
involves: 129S/SvEv * 129S1/Sv * 129X1/SvJ * MF1 MGI:2665016
cx17
Gfra1tm3Jmi/Gfra1tm3Jmi
Rettm14(Gfra1)Jmi/Ret+
involves: 129X1/SvJ MGI:3801035
cx18
Kifbpem1Hmy/Kifbpem1Hmy
Rettm1Jmi/Ret+
involves: 129X1/SvJ MGI:6154379


Genotype
MGI:3819169
ht1
Allelic
Composition
Rettm1Giro/Ret+
Genetic
Background
129.129P2-Rettm1Giro
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm1Giro mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• 14% to 15% of mice exhibit adrenal gland cortical nodular regeneration or hyperplasia
• thyroid gland dysplasia and adenoma are observed in 12% of mice unlike in wild-type mice
• thyroid gland dysplasia and adenoma are observed in 12% of mice unlike in wild-type mice

neoplasm
• thyroid gland dysplasia and adenoma are observed in 12% of mice unlike in wild-type mice




Genotype
MGI:3583335
ht2
Allelic
Composition
Rettm2.1Cos/Ret+
Genetic
Background
involves: 129S1/Sv * C57BL/6J * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm2.1Cos mutation (1 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• 16-17% display nodular chromaffin cell hyperplasia, rarely progressing to pheochromocytoma
• 31% of young and 41% of older mutants display diffuse C-cell hyperplasia and 14% have more advanced nodular C-cell hyperplasia

nervous system
• 16-17% display nodular chromaffin cell hyperplasia, rarely progressing to pheochromocytoma




Genotype
MGI:5295936
ht3
Allelic
Composition
Rettm1Cos/Ret+
Genetic
Background
involves: 129S/SvEv * 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm1Cos mutation (2 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• at P15, heterozygotes show a reduced mean glomerular density relative to wild-type littermates (7.25 versus 8.95 glomeruli per unit area, respectively)
• at P15, about 4% of heterozygotes exhibit unilateral renal agenesis




Genotype
MGI:3588575
ht4
Allelic
Composition
Rettm1Cos/Ret+
Genetic
Background
involves: 129S/SvEv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm1Cos mutation (2 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• decrease in both longitudinal and circular muscle contraction of the intestine in response to electric field stimulation

nervous system
• colon submucosal neuron size is reduced by 16%, however cell size of small bowel submucosal neurons and myenteric and submucosal neuron numbers in the small bowel and colon are normal
• the myenteric plexus has a 35% reduction in cell size in the small bowel and 34% reduction in the colon
• myenteric neuron acetylcholinesterase-stained fiber counts are reduced by 11-13%
• 70-95% reduction in substance P and VIP release

muscle
• decrease in both longitudinal and circular muscle contraction of the intestine in response to electric field stimulation




Genotype
MGI:3628455
ht5
Allelic
Composition
Rettm1Cti/Ret+
Genetic
Background
involves: 129S/SvEv * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm1Cti mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• male heterozygotes have a lower number of enteric neurons in the stomach, duodenum, jejunum, ileum, cecum and in colon; female heterozygotes display the same features in the duodenum, ileum, cecum and in both the proximal and distal part of the colon

digestive/alimentary system
• in both male and female heterozygotes, the muscular layer of proximal and distal colon is thinner than in wild-type; in females the apex of the cecum shows reduced muscle thickness, while males show a thinner muscular layer in the body and apex of the cecum
• a reduced thickness of the muscular layer of the duodenum of heterozygotes is apparent; female heterozygotes display reduced muscle thickness in the jejunum




Genotype
MGI:3819168
ht6
Allelic
Composition
Rettm1Giro/Ret+
Genetic
Background
involves: 129/Sv * 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm1Giro mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• 14% to 15% of mice exhibit adrenal gland cortical nodular regeneration or hyperplasia




Genotype
MGI:4459059
ht7
Allelic
Composition
Rettm3.1(Bcl2l1)Heno/Ret+
Genetic
Background
involves: 129/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm3.1(Bcl2l1)Heno mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• mice exhibit normal numbers of neurons in the small intestine and colon
• enteric neurons are protected from GDNF-induced apoptosis compared with similarly treated wild-type neurons

digestive/alimentary system
N
• mice exhibit normal numbers of neurons in the small intestine and colon

cellular
• enteric neurons are protected from GDNF-induced apoptosis compared with similarly treated wild-type neurons




Genotype
MGI:3801031
ht8
Allelic
Composition
Rettm14(Gfra1)Jmi/Ret+
Genetic
Background
involves: 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm14(Gfra1)Jmi mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• heterozygotes grow normally without overt deficits in the enteric system or kidney




Genotype
MGI:5585303
ht9
Allelic
Composition
Rettm1Jmi/Ret+
Genetic
Background
involves: 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm1Jmi mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• analysis of branching at 15.5 dpc revealed a subtle but significant (18%) decrease in ureteric branch tips in Ret+/- embryonic kidneys compared with littermate controls, although other metrics describing the structure of the branched tree were normal
• quantification of cap cells and tip cells per niche also trended toward larger cap and tip volumes (more like younger kidneys), although this did not reach statistical significance
• decreased niche number observed at P0 confirms the tip deficit observed at E15.5




Genotype
MGI:3487263
ht10
Allelic
Composition
Rettm3(RET)Jmi/Ret+
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm3(RET)Jmi mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype




Genotype
MGI:3487264
ht11
Allelic
Composition
Rettm3.1(RET)Jmi/Ret+
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm3.1(RET)Jmi mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• died with the first 4 weeks of life

digestive/alimentary system
• narrowed distal colon
• dilated proximal colon
• dilated

endocrine/exocrine glands
• by 4 weeks of age

renal/urinary system
• 50% with renal tubular cysts and proteinaceous casts at 3, 4 weeks of age
• development variable from normal to bilateral kidney agenesis
• hypoplastic with 50% reduction in glomeruli but normal kidney organization
• hypoplastic with 50% reduction in glomeruli but normal kidney organization
• 50% with renal tubular cysts and proteinaceous casts at 3, 4 weeks of age

reproductive system
• by 4 weeks of age
• fewer proliferating cells in the testis at day 10 when cells first enter meiosis
• spermiogenesis at 4 weeks of age
• maturation arrested
• fewer round spermatids and no elongated ones

nervous system
• reductions in neuron numbers and neuronal fiber density in the proximal small intestine
• intestinal aganglionosis involving distal colon and ileocecal junction
• 50% reduced neuron number in sphenopalatine ganglia

growth/size/body
• 50% with renal tubular cysts and proteinaceous casts at 3, 4 weeks of age




Genotype
MGI:4455337
ht12
Allelic
Composition
Rettm2(cre/ERT2)Ddg/Ret+
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm2(cre/ERT2)Ddg mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice are viable and fertile; no detailed analysis available




Genotype
MGI:4413451
cx13
Allelic
Composition
Islr2tm1.1Ddg/Islr2tm1.1Ddg
Rettm1.1Ddg/Ret+
Genetic
Background
involves: 129S6/SvEvTac * BALB/cJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Islr2tm1.1Ddg mutation (1 available); any Islr2 mutation (23 available)
Rettm1.1Ddg mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• the peroneal nerve is shorter than in wild-type mice and Islr2tm1.1Ddg homozygotes




Genotype
MGI:5295884
cx14
Allelic
Composition
Pax2tm1Pgr/Pax2+
Rettm1Cos/Ret+
Genetic
Background
involves: 129S/SvEv * 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pax2tm1Pgr mutation (1 available); any Pax2 mutation (44 available)
Rettm1Cos mutation (2 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• double heterozygotes are significantly underrepresented at weaning, probably due to postnatal renal insufficiency in a subset of newborns

renal/urinary system
• at P15, double heterozygotes show a significant reduction of ~49%, 37% and 22% in mean glomerular density (4.57 glomeruli per unit area) relative to wild-type (8.95 glomeruli per unit area), single Rettm1Cos heterozygotes (7.25 glomeruli per unit area) and single Pax2tm1Pgr heterozygotes (5.79 glomeruli per unit area), respectively
• at P15, double heterozygotes show a significantly reduced kidney to body mass ratio (0.56%) relative to wild-type (0.75%) or single Rettm1Cos heterozygous (0.75%) littermates
• at E18.5, double heterozygotes show a significantly reduced kidney to body mass ratio (0.23%) relative to wild-type (0.42%) or single Rettm1Cos heterozygous (0.45%) littermates
• at E18.5, about 13% of double heterozygotes display bilateral renal agenesis
• at E18.5, about 52% of double heterozygotes display unilateral renal agenesis
• at P15, about 15% of double heterozygotes exhibit unilateral renal agenesis, suggesting postnatal death most likely due to renal hypoplasia and insufficiency
• at E18.5, the ipsilateral ureters of agenic kidney(s) are also absent
• however, the adrenal glands, bladder and genitals are still present in all instances of renal agenesis
• in culture, both E11.5 and E12.5 kidney explants show a stunted pattern of branching morphogenesis with a significantly lower number of branch points relative to wild-type and single Rettm1Cos heterozygous explants




Genotype
MGI:2665019
cx15
Allelic
Composition
Rettm1Cos/Ret+
Wnt11tm1Amc/Wnt11tm1Amc
Genetic
Background
involves: 129S/SvEv * 129S1/Sv * 129X1/SvJ * MF1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm1Cos mutation (2 available); any Ret mutation (52 available)
Wnt11tm1Amc mutation (3 available); any Wnt11 mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• kidneys are 44% the size of Wnt11-null kidneys and 67% the size of Ret,Wnt11 double heterozygotes
• ureteric branching is severely affected at E12.5, much mores so than in Wnt11 null embryos
• kidneys only have 2-4 ureteric buds at E12.5 compared to the normal 7 in wild-type




Genotype
MGI:2665016
cx16
Allelic
Composition
Rettm1Cos/Ret+
Wnt11tm1Amc/Wnt11+
Genetic
Background
involves: 129S/SvEv * 129S1/Sv * 129X1/SvJ * MF1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rettm1Cos mutation (2 available); any Ret mutation (52 available)
Wnt11tm1Amc mutation (3 available); any Wnt11 mutation (23 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
renal/urinary system
• kidneys are 52% the size of wild-type at E18.5




Genotype
MGI:3801035
cx17
Allelic
Composition
Gfra1tm3Jmi/Gfra1tm3Jmi
Rettm14(Gfra1)Jmi/Ret+
Genetic
Background
involves: 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gfra1tm3Jmi mutation (0 available); any Gfra1 mutation (31 available)
Rettm14(Gfra1)Jmi mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mutants exhibit no deficits in enteric neurons, motor neurons, Schwann cells, regenerating nerves, ureteric bud and kidney development and no abnormalities in the olfactory bulb




Genotype
MGI:6154379
cx18
Allelic
Composition
Kifbpem1Hmy/Kifbpem1Hmy
Rettm1Jmi/Ret+
Genetic
Background
involves: 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kifbpem1Hmy mutation (1 available); any Kifbp mutation (36 available)
Rettm1Jmi mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
embryo
• delayed colonization of intestines by enteric neural crest-derived cells (ENCCs), as determined by Sox10 staining in E12.5 embryos





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