Antibody:	anti-HNF4a (clone H1415)
Detection system:	Secondary antibody coupled to Alexa Fluor 594

Structure	Level	Pattern	Image	Note
TS15: pancreas primordium	Present	Regionally restricted	2D , 2E	Expression in most pancreatic progenitor cells.

Structure	Level	Pattern	Image	Note
TS17: pancreas primordium	Present	Non-Uniform	2G , 2H	Expression in most pancreatic progenitor cells. Decreased intensity of expression in all cell types.

Structure	Level	Pattern	Image	Note
TS20: pancreas	Present		2J , 2K

Structure	Level	Pattern	Image	Note
TS23: pancreas	Present	Regionally restricted	2M , 2N	Expression in most pancreatic progenitor cells. Decreased intensity of expression in all cell types.

Structure	Level	Pattern	Image	Note
TS20: pancreas	Present	Regionally restricted	2P , 2Q	Expression in cells in an islet-like cell cluster

Structure	Level	Pattern	Image	Note
TS23: pancreas	Present	Regionally restricted	2T , 2S	Expression in cells in an islet-like cell cluster

Structure	Level	Pattern	Image	Note
TS15: pancreas primordium	Present	Regionally restricted	S2	Expression in most Gcg-expressing cells in the developing pancreas.