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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Coch+
wild type
MGI:2436656
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
 		Cochtm1.1Stw/Coch+ CBACa.129S1-Cochtm1.1Stw MGI:4880751
ht2
 		Cochtm1Mrtn/Coch+ CBACa.129S4-Cochtm1Mrtn MGI:4880748


Genotype
MGI:4880751
ht1
Allelic
Composition		 Cochtm1.1Stw/Coch+
Genetic
Background		 CBACa.129S1-Cochtm1.1Stw
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cochtm1.1Stw mutation (2 available); any Coch mutation (43 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
hearing/vestibular/ear
hearing/vestibular/ear phenotype ( J:167669 )
N
• unlike in homozygous mutant mice, no hearing deficit is detected at any age
reduced linear vestibular evoked potential ( J:167669 )
• increase in VsEP thresholds at 21 months of age




Genotype
MGI:4880748
ht2
Allelic
Composition		 Cochtm1Mrtn/Coch+
Genetic
Background		 CBACa.129S4-Cochtm1Mrtn
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cochtm1Mrtn mutation (1 available); any Coch mutation (43 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
hearing/vestibular/ear
increased or absent threshold for auditory brainstem response ( J:167669 )
• increase in ABR threshold is similar to homozygous mutant mice




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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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Send questions and comments to User Support. 		last database update
01/13/2026
MGI 6.24 		The Jackson Laboratory