Antibody:	anti-BiP
Detection system:	Secondary antibody

Structure	Level	Pattern	Image	Note
TS20: lens vesicle	Present	Regionally restricted	1A E12.5 BiP	Expression is in primary lens fiber cells.
TS20: lens vesicle epithelium	Present		1A E12.5 BiP

Structure	Level	Pattern	Image	Note
TS22: lens fiber	Present	Regionally restricted	1A E14.5 BiP	Expression is elevated at the transition zone compared to the central fibers.
TS22: lens epithelium	Present		1A E14.5 BiP

Structure	Level	Pattern	Image	Note
TS24: lens fiber	Present	Regionally restricted	1A E16.5 BiP	Expression is mostly confined to the newly forming fiber cells.
TS24: lens epithelium	Present		1A E16.5 BiP

Structure	Level	Pattern	Image	Note
TS26: lens fiber	Strong	Regionally restricted	1B E18.5 BiP	Expression is high in the newly forming lens fiber cells and a diffuse staining in central lens fiber cells.
TS26: lens epithelium	Strong		1B E18.5 BiP

Structure	Level	Pattern	Image	Note
TS28: lens fiber	Present	Regionally restricted	1B 3 mo BiP	Expression is associated with fiber cells that are getting ready to undergo degradation of nuclei and organelles.