Antibody:	anti-integrin alpha 3
Detection system:	Secondary antibody coupled to fluorescein

Structure	Level	Pattern	Image	Note
TS20: inner ear vestibular component	Present	Regionally restricted	2A	Expression is in the non-sensory epithelium of the developing ampulla. There seems to be a reciprocal staining of Itga3 and Itga6 (see assay MGI:3575632).

Structure	Level	Pattern	Image	Note
TS20: cochlear duct epithelium	Present	Regionally restricted	2C	Expression is in the non-sensory epithelium. There seems to be a reciprocal staining of Itga3 and Itga6 (see assay MGI:3575632).
TS20: vestibulo-cochlear ganglion complex	Absent		2C

Structure	Level	Pattern	Image	Note
TS22: inner ear vestibular component	Present	Regionally restricted	4A	Expression is outside the developing sensory regions of the ampulla.

Structure	Level	Pattern	Image	Note
TS22: cochlear duct epithelium	Present	Regionally restricted	4D	Expression is outside the developing sensory regions.

Structure	Level	Pattern	Image	Note
TS26: inner ear vestibular component	Present	Regionally restricted	5A	Expression is in the nonsensory epithelium. There is no staining in the sensory epithelium.

Structure	Level	Pattern	Image	Note
TS26: cochlear duct epithelium	Present	Uniform	5D
TS26: organ of Corti	Absent		5D

Structure	Level	Pattern	Image	Note
TS27: utricle	Present	Regionally restricted	7A	Expression is in all nonsensory epithelia.
TS27: inner ear vestibular component	Present	Regionally restricted	7A	Expression is in all nonsensory epithelia of the developing ampulla.

Structure	Level	Pattern	Image	Note
TS27: cochlear duct	Present	Regionally restricted	7D	Expression is in all nonsensory epithelia.

Structure	Level	Pattern	Image	Note
TS28: saccule	Present	Regionally restricted	8A	Expression is in nonsensory epithelia and in hair cell and support cell layers.

Structure	Level	Pattern	Image	Note
TS28: organ of Corti	Strong	Regionally restricted	8B	Expression is upregulated when compared with expression at the apex (see Fig 8C).
TS28: spiral prominence	Present		8B	Expression is upregulated when compared with expression at the apex (see Fig 8C).
TS28: stria vascularis	Present		8B	Expression is upregulated when compared with expression at the apex (see Fig 8C).
TS28: vestibular membrane	Present		8B	Expression is upregulated when compared with expression at the apex (see Fig 8C).

Structure	Level	Pattern	Image	Note
TS28: cochlear duct	Moderate	Regionally restricted	8C	Expression is in the nonsensory epithelium.

Structure	Level	Pattern	Image	Note
TS17: otocyst epithelium	Present	Uniform