Antibody:	Anti-Egr1 (15F7) (#4153)
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS21: lens epithelium	Present		4B left
TS21: eyelid mesenchyme	Present	Regionally restricted	4B right , 4B left	Expression is nuclear in a subpopulation of mesenchymal cells.
TS21: face skin	Present	Regionally restricted	4B left	Expression is in the orbit and periocular tissues.
TS21: eye	Present	Regionally restricted	4B left	Expression is in the epithelium of the developing conjunctival sac.
TS21: neural retina	Absent		4B left
TS21: pigmented retinal epithelium	Absent		4B left

Structure	Level	Pattern	Image	Note
TS23: eyelid epithelium	Present		4D right , 4D left
TS23: eyelid	Present	Regionally restricted	4D left , 4D right	Expression is at the base of the developing cilia (eyelashes).

Structure	Level	Pattern	Image	Note
TS25: eyelid	Present	Regionally restricted	4F right , 4F left	Expression is at the base of hair follicles.
TS25: eyelid mesenchyme	Present	Scattered	4F right , 4F left

Structure	Level	Pattern	Image	Note
TS23: eyelid	Present	Regionally restricted	4H right , 4H left	Expression is at the base of the developing cilia at the leading edge of the eyelid.