Antibody:	anti-GRP94 (9G10 SPA-850)
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS15: heart	Present		2A

Structure	Level	Pattern	Image	Note
TS15: surface ectoderm	Present		2C

Structure	Level	Pattern	Image	Note
TS15: neural tube	Present		2D

Structure	Cell Type	Level	Pattern	Image	Note
TS15: atrium cardiac muscle	cardiac muscle cell	Strong		2E
TS15: primitive ventricle cardiac muscle	cardiac muscle cell	Strong		2E
TS15: endocardial lining		Present		2E
TS15: cardiac jelly		Absent		2E
TS15: endocardial cushion		Absent		2E

Structure	Cell Type	Level	Pattern	Image	Note
TS17: atrium cardiac muscle	cardiac muscle cell	Strong		2F
TS17: primitive ventricle cardiac muscle	cardiac muscle cell	Strong		2F
TS17: endocardial lining		Present		2F
TS17: cardiac jelly		Absent		2F
TS17: endocardial cushion		Absent		2F

Structure	Cell Type	Level	Pattern	Image	Note
TS19: atrium cardiac muscle	cardiac muscle cell	Strong		2G
TS19: ventricle cardiac muscle	cardiac muscle cell	Strong		2G
TS19: endocardial cushion		Absent		2G

Structure	Cell Type	Level	Pattern	Image	Note
TS20: atrium cardiac muscle	cardiac muscle cell	Strong		2H
TS20: ventricle cardiac muscle	cardiac muscle cell	Strong		2H
TS20: endocardial cushion		Absent		2H

Structure	Cell Type	Level	Pattern	Image	Note
TS21: atrium cardiac muscle	cardiac muscle cell	Strong		2I
TS21: ventricle cardiac muscle	cardiac muscle cell	Strong		2I
TS21: endocardial cushion		Absent		2I

Structure	Level	Pattern	Image	Note
TS19: liver	Present	Regionally restricted		Expression was detected within some differentiating liver cells.
TS19: bronchus epithelium	Present
TS19: metanephros	Present	Regionally restricted		Expression was detected in metanephric tubules.

Structure	Level	Pattern	Image	Note
TS21: liver	Present	Regionally restricted		Expression was detected within some differentiating liver cells.
TS21: bronchus epithelium	Present
TS21: renal tubule	Present			Expression was detected in metanephric tubules.