Antibody:	anti-Foxa1
Detection system:	Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS26: left lung alveolus	Present		1C
TS26: lung epithelium	Present		1C
TS26: right lung accessory lobe alveolus	Present		1C

Structure	Level	Pattern	Image	Note
TS26: left lung alveolus	Absent		1D
TS26: lung epithelium	Absent		1D
TS26: right lung accessory lobe alveolus	Absent		1D

Structure	Level	Pattern	Image	Note
TS28: cerebellum Purkinje cell layer	Present
TS28: main olfactory bulb	Present
TS28: tongue epithelium	Present	Regionally restricted		Expression is in the dorsal epithelium, serous and mucous glands, and is absent in the ventral epithelium.
TS28: parotid gland	Present
TS28: submandibular gland	Present
TS28: ureter	Present
TS28: esophagus	Present	Regionally restricted		Expression is in the stratified squamous epithelium.
TS28: stomach	Present	Regionally restricted		Expression is in the gastric glands and is absent in the stratified squamous epithelium.
TS28: large intestine	Present	Regionally restricted		Expression is in the single columnar epithelium and the crypts of Lieberkuhn.
TS28: small intestine	Present	Regionally restricted		Expression is in the single columnar epithelium and the crypts of Lieberkuhn.
TS28: liver	Present	Regionally restricted		Expression is in the hepatocytes and bile ducts.
TS28: pancreatic duct	Present	Regionally restricted
TS28: pancreatic acinus	Absent
TS28: islets of Langerhans	Present
TS28: nasal cavity respiratory epithelium	Present
TS28: adipose tissue	Absent
TS28: adrenal gland	Absent
TS28: arterial system	Absent
TS28: bone	Absent
TS28: cartilage	Absent
TS28: gallbladder	Absent
TS28: heart	Absent
TS28: olfactory epithelium	Absent
TS28: renal cortex	Absent
TS28: renal medulla	Absent
TS28: skeletal muscle	Absent
TS28: smooth muscle tissue	Absent
TS28: spleen	Absent
TS28: thymus	Absent
TS28: venous system	Absent
TS28: olfactory gland	Absent			Expression is absent in the olfactory glands.
TS28: pharynx	Present	Regionally restricted		Expression is in the columnar epithelium and the mucous acini.
TS28: trachea	Present	Regionally restricted		Expression is in the tracheal glands and the stratified squamous epithelium.
TS28: bronchus	Present	Regionally restricted		Expression is in the bronchiolar epithelium and the alveolar epithelium (type II cells).
TS28: thyroid gland	Present
TS28: metanephros	Present	Regionally restricted		Expression is in the pyramid and calyx (columnar and transitional epithelium).
TS28: bladder	Present	Regionally restricted		Expression is in the transitional epithelium.

Structure	Level	Pattern	Image	Note
TS28: epididymis	Absent
TS28: penis	Absent
TS28: testis	Absent
TS28: anterior prostatic epithelium	Present			coagulating gland (cuboidal epithelium)
TS28: epithelium of seminal vesicle	Present			vesicular gland (columnar epithelium)
TS28: prostate gland	Present
TS28: prostatic urethra	Present

Structure	Level	Pattern	Image	Note
TS28: mammary gland	Present	Regionally restricted		Expression is present in the lactiferous ducts and is absent in the glandular alveoli.
TS28: vagina squamous epithelium	Present
TS28: ovary	Absent
TS28: uterine gland	Absent
TS28: uterine horn epithelium	Absent			endometrium
TS28: endometrium luminal epithelium	Absent			uterus columnar epithelium

Structure	Level	Pattern	Image	Note
TS17: hepatic primordium	Present		2A
TS17: hindgut	Present		2A
TS17: laryngo-tracheal groove	Present		2A
TS17: lung	Present		2A
TS17: neural tube	Present		2A
TS17: notochord	Present		2A
TS17: pharynx	Present		2A
TS17: tail neural tube	Present		2A

Structure	Level	Pattern	Image	Note
TS21: liver	Present		2C
TS21: lung	Present		2C
TS21: stomach	Present		2C
TS21: tongue epithelium	Present	Regionally restricted	2C	Expression is in the dorsal epithelium.
TS21: submandibular gland primordium	Weak		2C
TS21: midbrain	Present	Regionally restricted	2C	Expression is ventral.

Structure	Level	Pattern	Image	Note
TS23: esophagus	Present		3A
TS23: intestine	Present		3A
TS23: liver	Present		3A
TS23: lung	Present		3A
TS23: pancreas	Present		3A
TS23: stomach	Present		3A
TS23: tongue epithelium	Present	Regionally restricted	3A	Expression is in the dorsal epithelium.
TS23: spinal cord floor plate	Present	Regionally restricted	3A	Expression is at the level of the fore- and hindlimb.
TS23: midbrain	Present	Regionally restricted	3A	Expression is in the ventral midbrain.
TS23: hypothalamus	Present		3A
TS23: nasal cavity	Very strong		3A
TS23: thyroid gland	Present		3A

Structure	Level	Pattern	Image	Note
TS23: 4th ventricle	Present	Regionally restricted	3B	Expression is in the periventricular region.
TS23: hypothalamus	Present		3B
TS23: midbrain	Present	Regionally restricted	3B	Expression is in the ventral midbrain.

Structure	Level	Pattern	Image	Note
TS23: submandibular gland primordium	Present		3C
TS23: thyroid gland	Present		3C

Structure	Level	Pattern	Image	Note
TS23: renal pelvis	Present	Regionally restricted	3D	Expression is in the epithelium.

Structure	Level	Pattern	Image	Note
TS26: esophagus	Present
TS26: hypothalamus	Present
TS26: intestine	Present
TS26: liver	Present
TS26: lung	Present
TS26: stomach	Present
TS26: submandibular gland	Present
TS26: thyroid gland	Present
TS26: tongue epithelium	Present	Regionally restricted		Expression is in the dorsal epithelium.
TS26: spinal cord floor plate	Present	Regionally restricted		Expression is at the level of the fore- and hindlimb.
TS26: midbrain	Present	Regionally restricted		Expression is in the ventral midbrain.
TS26: nasal cavity	Very strong
TS26: 4th ventricle	Present	Regionally restricted		Expression is in the periventricular region.
TS26: renal pelvis	Present	Regionally restricted		Expression is in the epithelium.
TS26: bladder	Present	Regionally restricted		Expression is in the epithelium.
TS26: pancreas	Absent

Structure	Level	Pattern	Image	Note
TS28: telencephalon	Present	Regionally restricted	4A	Expression is ventral.
TS28: main olfactory bulb	Present		4A

Structure	Level	Pattern	Image	Note
TS28: hippocampus	Present		4C

Structure	Level	Pattern	Image	Note
TS28: hypothalamus	Present		4E
TS28: midbrain	Present	Regionally restricted	4E	Expression is motor neurons in the ventral midbrain.

Structure	Level	Pattern	Image	Note
TS28: cerebellum Purkinje cell layer	Present		4G	Expression is nuclear.

Structure	Level	Pattern	Image	Note
TS28: tongue epithelium	Present	Regionally restricted	5A	Expression is in the dorsal epithelium
TS28: taste bud	Absent		5A
TS28: tongue muscle	Absent		5A

Structure	Level	Pattern	Image	Note
TS28: tongue	Present	Regionally restricted	5C	Expression is in serous and mucous glands.

Structure	Level	Pattern	Image	Note
TS28: tongue epithelium	Weak	Regionally restricted	5E	Expression is in the ventral epithelium.

Structure	Level	Pattern	Image	Note
TS28: submandibular gland	Present	Regionally restricted	5G	Expression is in the acini and in the excretory ducts.

Structure	Level	Pattern	Image	Note
TS28: parotid gland	Present	Regionally restricted	5I	Expression is in the acini and in the excretory ducts.

Structure	Level	Pattern	Image	Note
TS28: esophagus	Present	Regionally restricted	6A	Expression is in the epithelium.

Structure	Level	Pattern	Image	Note
TS28: stomach	Present	Regionally restricted	6C	Expression is in the glandular portion.

Structure	Level	Pattern	Image	Note
TS28: small intestine	Present	Regionally restricted	6E	Expression is in the crypts of lieberkuhn and in the lining epithelium.

Structure	Level	Pattern	Image	Note
TS28: large intestine	Present	Regionally restricted	6G	Expression is in the intestinal glands and in the epithelium.

Structure	Level	Pattern	Image	Note
TS28: gallbladder	Absent		7A

Structure	Level	Pattern	Image	Note
TS28: liver	Present	Regionally restricted	7C	Expression is in hepatocytes and bile ducts.

Structure	Level	Pattern	Image	Note
TS28: pancreas	Present	Regionally restricted	7E	Expression is in the ducts.
TS28: islets of Langerhans	Present		7E

Structure	Level	Pattern	Image	Note
TS28: nasal cavity respiratory epithelium	Strong		8A

Structure	Level	Pattern	Image	Note
TS28: pharynx	Present	Regionally restricted	8C	Expression is in the epithelium and mucous glands.

Structure	Level	Pattern	Image	Note
TS28: trachea	Present	Regionally restricted	8E	Expression is in the epithelium and glands.

Structure	Level	Pattern	Image	Note
TS28: lung	Present	Regionally restricted	8G	Expression is in epithelial cells in both conducting airways and in alveolar type II cells.

Structure	Level	Pattern	Image	Note
TS28: thyroid gland	Strong	Regionally restricted	8I	Expression is in a small subset of follicular cells.

Structure	Level	Pattern	Image	Note
TS28: metanephros	Present	Regionally restricted	9A	Expression is in the epithelial cells lining the calyx and pyramid.

Structure	Level	Pattern	Image	Note
TS28: ureter	Present	Regionally restricted	9C	Expression is in the transitional epithelium lining the ureter.

Structure	Level	Pattern	Image	Note
TS28: bladder	Present	Regionally restricted	9E	Expression is in the epithelium.

Structure	Level	Pattern	Image	Note
TS28: male reproductive system	Present	Regionally restricted	10A	Expression is in the coagulating gland.

Structure	Level	Pattern	Image	Note
TS28: male reproductive system	Present	Regionally restricted	10C	Expression is in the vesicular gland.

Structure	Level	Pattern	Image	Note
TS28: testis	Absent		10E

Structure	Level	Pattern	Image	Note
TS28: male reproductive system	Present	Regionally restricted	10G	Expression is in the prostatic urethral wall.

Structure	Level	Pattern	Image	Note
TS28: prostate gland	Present		10I

Structure	Level	Pattern	Image	Note
TS28: ovary	Absent		11A

Structure	Level	Pattern	Image	Note
TS28: uterus	Absent		11C

Structure	Level	Pattern	Image	Note
TS28: epithelium of vagina	Present		11E	Expression is in the vaginal epithelium.

Structure	Level	Pattern	Image	Note
TS28: mammary gland	Present	Regionally restricted	11G	Expression is in the lactiferous ducts and is absent in the alveoli.