Antibody:	281-2
Detection system:	horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS22: embryo	Present	Widespread	2C	Expression widely distributed in epithelium of skin, sensory organs, tongue, esophagus, stomach, gut, pancreas and ureter. Authors report expression became more restrictred at 14.5 dpc, and several previously expressing organs were negative.
TS22: brain	Present	Diffuse	2C	Diffuse expression on surfaces of neopallial cortex, diencephalon, midbrain and neural tube.

Structure	Level	Pattern	Image	Note
TS20: meninges	Strong		6A

Structure	Level	Pattern	Image	Note
TS20: vertebral pre-cartilage condensation	Strong	Regionally restricted	6B	Strong expression in perichondrium of prevertebra

Structure	Level	Pattern	Image	Note
TS20: lung	Present		6C

Structure	Level	Pattern	Image	Note
TS20: liver	Present		6D

Structure	Level	Pattern	Image	Note
TS21: limb mesenchyme	Strong		7Ab

Structure	Level	Pattern	Image	Note
TS22: submandibular gland primordium mesenchyme	Present		7Bb

Structure	Level	Pattern	Image	Note
TS21: vibrissa follicle	Present	Regionally restricted	7Cb	Expression in epithelium and mesenchyme of whisker follicles.

Structure	Level	Pattern	Image	Note
TS22: hair follicle	Present		7Db
TS22: blood vessel endothelium	Present		7Db

Structure	Level	Pattern	Image	Note
TS21: dorsal root ganglion	Absent		7Eb	No expression in bodies of ganglia.

Structure	Level	Pattern	Image	Note
TS22: palatal rugae epithelium	Present		7Fb
TS22: tongue epithelium	Present		7Fb

Structure	Level	Pattern	Image	Note
TS22: blood vessel endothelium	Strong
TS22: digit mesenchyme	Strong
TS22: esophagus epithelium	Strong
TS22: face mesenchyme	Strong
TS22: intestine epithelium	Strong
TS22: oral epithelium	Strong
TS22: salivary gland epithelium	Strong
TS22: tongue epithelium	Strong
TS22: tooth epithelium	Strong
TS22: tooth mesenchyme	Strong
TS22: epidermis	Strong			Authors report expression in dermal epithelium.
TS22: liver	Moderate
TS22: pancreas epithelium	Moderate
TS22: salivary gland mesenchyme	Moderate
TS22: stomach epithelium	Moderate
TS22: tail nerve	Moderate
TS22: testis	Moderate
TS22: urothelium of ureter	Moderate
TS22: heart	Weak
TS22: inner ear mesenchyme	Weak
TS22: lung epithelium	Weak
TS22: lung mesenchyme	Weak
TS22: stomach	Weak	Regionally restricted		Authors report expression in stomach muscle.
TS22: muscle tissue	Ambiguous
TS22: pancreas mesenchyme	Ambiguous
TS22: spinal cord	Ambiguous
TS22: ureteral mesenchyme	Ambiguous
TS22: bone	Absent
TS22: cartilage	Absent
TS22: choroid plexus	Absent
TS22: diencephalon	Absent
TS22: esophagus mesenchyme	Absent
TS22: inner ear epithelium	Absent
TS22: intestine mesenchyme	Absent
TS22: mesenchyme of metanephros	Absent
TS22: metanephros epithelium	Absent
TS22: nasal mesenchyme	Absent
TS22: neocortex	Absent
TS22: olfactory epithelium	Absent
TS22: stomach mesenchyme	Absent