Antibody:	anti-AQP2 (GN-762)
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS16: otocyst epithelium	Present	Diffuse	3	Expression is along the luminal surface.

Structure	Level	Pattern	Image	Note
TS20: vestibular component epithelium	Very strong	Regionally restricted		Expression is in the medial region of the vestibule.
TS20: cochlear duct epithelium	Strong	Diffuse
TS20: vestibulo-cochlear ganglion	Weak	Non-Uniform

Structure	Level	Pattern	Image	Note
TS21: inner ear vestibular component	Strong	Regionally restricted	4B , 4E	Expression is in the medial aspect.
TS21: cochlear duct epithelium	Strong		4B	Expression is in the luminal epithelium.
TS21: endolymphatic duct	Absent		4B
TS21: endolymphatic sac	Absent		4B

Structure	Level	Pattern	Image	Note
TS21: endolymphatic sac	Absent		4C

Structure	Level	Pattern	Image	Note
TS21: semicircular canal	Present	Regionally restricted	4D	Expression is in the epithelium of the ampullae in the regions of the cristae.

Structure	Level	Pattern	Image	Note
TS21: cochlear duct epithelium	Present		4F

Structure	Level	Pattern	Image	Note
TS23: saccule	Present	Regionally restricted	5A	Expression is in the maculae.
TS23: utricle	Present	Regionally restricted	5A	Expression is in the maculae.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct	Present	Regionally restricted	5B	Expression is in turns and is strong in the apical turn of the cochlea.
TS23: cochlear ganglion	Present		5B

Structure	Level	Pattern	Image	Note
TS23: cochlear duct	Present	Regionally restricted	5C	Expression is in turns and is strong in the midturn of the cochlea.

Structure	Level	Pattern	Image	Note
TS23: cochlear duct	Present	Regionally restricted	5E	Expression is in a patch located along the inferior lateral aspect of the duct and in a band in a more superior lateral position.

Structure	Level	Pattern	Image	Note
TS26: vestibulocochlear nerve cochlear component	Present		6A
TS26: cochlear duct epithelium	Trace		6A

Structure	Level	Pattern	Image	Note
TS26: endolymphatic sac mesenchyme	Present	Regionally restricted	6B	Expression is in a rim adjacent to the basal laminae of the sac epithelium.
TS26: endolymphatic sac epithelium	Present	Non-Uniform	6B

Structure	Level	Pattern	Image	Note
TS26: cochlear duct epithelium	Present	Regionally restricted	6C	Expression is in several patches along the developing Reissner's membrane, superior portion of the presumptive stria vascularis, and spiral limbus region.

Structure	Level	Pattern	Image	Note
TS26: utricle	Present	Regionally restricted	6D	Expression is in the lateral walls of the utricle and in regions immediately adjacent to the cristae.
TS26: saccule	Present		6D
TS26: semicircular duct ampulla	Present		6D
TS26: crista ampullaris	Present	Regionally restricted	6D	Expression is in nerve fibers innervating the crista.