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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rettm1Giro
targeted mutation 1, Giovanni Romeo
MGI:3819163
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Rettm1Giro/Rettm1Giro involves: 129/Sv * 129P2/OlaHsd * C57BL/6 MGI:3819167
ht2
Rettm1Giro/Ret+ 129.129P2-Rettm1Giro MGI:3819169
ht3
Rettm1Giro/Ret+ involves: 129/Sv * 129P2/OlaHsd * C57BL/6 MGI:3819168


Genotype
MGI:3819167
hm1
Allelic
Composition
Rettm1Giro/Rettm1Giro
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 (54 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice die within 24 hours of birth

nervous system
N
• unlike in Rettm1Cos homozygotes, mice develop normal superior cervical ganglia
• cultures of neural crest cells destined to colonize the bowels exhibit reduced Ret+ cell expansion compared to wild-type cultures
• mice exhibit defective ganglion formation along the entire bowel and stomach ganglions are absent or rare unlike in wild-type mice

renal/urinary system

cellular
• cultures of neural crest cells destined to colonize the bowels exhibit reduced Ret+ cell expansion compared to wild-type cultures




Genotype
MGI:3819169
ht2
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 (54 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:3819168
ht3
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 (54 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





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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory