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Gene Expression Data
Assay Details
Assay
Reference: J:360528 Fritzsch B, et al., Irx3/5 Null Deletion in Mice Blocks Cochlea-Saccule Segregation and Disrupts the Auditory Tonotopic Map. J Comp Neurol. 2024 Dec;532(12):e70008
Assay type: Immunohistochemistry
MGI Accession ID: MGI:7852161
Gene symbol: Myo7a
Gene name: myosin VIIA
Antibody: anti-myosin VIIa (#25-6790)
Detection system: Secondary antibody coupled to Alexa Fluor 488
Results
Specimen 1A: embryonic day 16.5 (more )
Note: Double labeled: green - Myo7a; magenta - Tubb3 (assay MGI:7852162).
Structure Cell Type Level Pattern Image Note
TS24: inner ear auditory hair cell Present Regionally restricted 1A Expression in hair cells.
TS24: semicircular canal Present Regionally restricted 1A Expression in cristae.
TS24: cochlea Present 1A
TS24: saccule Present 1A
TS24: utricle Present 1A

Specimen 1 Myo7A: embryonic day 16.5 (more )
Structure Level Pattern Image Note
TS24: semicircular canal Present Regionally restricted 1_Myo7A Expression in cristae.
TS24: cochlea Present 1_Myo7A
TS24: saccule Present 1_Myo7A
TS24: utricle Present 1_Myo7A

Specimen 1B: embryonic day 16.5; Irx3tm3.1Hui/Irx3tm3.1Hui, Irx5tm3Hui/Irx5tm3Hui (more )
Note: Double labeled: green - Myo7a; magenta - Tubb3 (assay MGI:7852162).
Structure Level Pattern Image Note
TS24: semicircular canal Present 1B Canal cristae and utricle comparable to wild-type.
TS24: utricle Present 1B Canal cristae and utricle comparable to wild-type.
TS24: saccule Present 1B Saccule continues across cochlea's basal turn.
TS24: organ of Corti Present 1B Organ of Corti length shortened compared to wild type.

Specimen 1C,C': embryonic day 16.5 (more )
Note: Double labeled: green - Myo7a; magenta - Tubb3 (assay MGI:7852162).
Structure Level Pattern Image Note
TS24: cochlea Present 1C' , 1C
TS24: saccule Present 1C' , 1C

Specimen 1C'': embryonic day 16.5 (more )
Note: Double labeled: green - Myo7a; magenta - Tubb3 (assay MGI:7852162).
Structure Cell Type Level Pattern Image Note
TS24: cochlea cochlear inner hair cell Present 1C'' Single row of inner cells and 3 rows of outer hair cells.
TS24: cochlea cochlear outer hair cell Present 1C'' Single row of inner cells and 3 rows of outer hair cells.

Specimen 1C''': embryonic day 16.5 (more )
Note: Double labeled: green - Myo7a; magenta - Tubb3 (assay MGI:7852162).
Structure Level Pattern Image Note
TS24: cochlea Present 1C''' Single row of inner cells and 3 rows of outer hair cells.

Specimen 1D: embryonic day 16.5; Irx3tm3.1Hui/Irx3tm3.1Hui, Irx5tm3Hui/Irx5tm3Hui (more )
Note: Double labeled: green - Myo7a; magenta - Tubb3 (assay MGI:7852162).
Structure Cell Type Level Pattern Image Note
TS24: semicircular canal Present 1D Canal cristae and utricle comparable to wild-type.
TS24: utricle Present 1D Canal cristae and utricle comparable to wild-type.
TS24: saccule Present 1D Saccule continues across cochlea's basal turn.
TS24: organ of Corti Present 1D Organ of Corti length shortened compared to wild type.
TS24: cochlea auditory hair cell Present 1D Ten or more rows of hair cells in fused cochlear base and saccule medial to organ of corti.

Specimen 1D': embryonic day 16.5; Irx3tm3.1Hui/Irx3tm3.1Hui, Irx5tm3Hui/Irx5tm3Hui (more )
Note: Double labeled: green - Myo7a; magenta - Tubb3 (assay MGI:7852162).
Structure Cell Type Level Pattern Image Note
TS24: saccule Present 1D'
TS24: cochlea auditory hair cell Present 1D' Ten or more rows of hair cells in fused cochlear base and saccule medial to organ of corti.

Specimen 1D'': embryonic day 16.5; Irx3tm3.1Hui/Irx3tm3.1Hui, Irx5tm3Hui/Irx5tm3Hui (more )
Note: Double labeled: green - Myo7a; magenta - Tubb3 (assay MGI:7852162).
Structure Level Pattern Image Note
TS24: cochlea Present 1D''


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