Antibody:	anti-fibroglycan 10H4
Detection system:	horseradish peroxidase

Structure	Level	Pattern	Image	Note
TS20: lung mesenchyme	Strong	Regionally restricted	7A	Basement membrane-like expression at interface between first epithelial branches and the mesenchyme.
TS20: lung epithelium	Absent		7A

Structure	Level	Pattern	Image	Note
TS21: lung mesenchyme	Strong	Regionally restricted	7B	Expression completely surrounds the mesenchymal cells in close contact with the stalks of the epithelial branches. At the tips of the branches, basement membrane-like expression.
TS21: lung epithelium	Absent		7B

Structure	Level	Pattern	Image	Note
TS25: lung mesenchyme	Strong	Regionally restricted	7C , 7D	Expression in a layer of mesenchymal cells surrounding the primary and secondary branches. No expression in mesenchymal cells near the tips and distant mesenchymal cell.
TS25: lung epithelium	Absent		7D , 7C

Structure	Level	Pattern	Image	Note
TS20: sclerotome	Weak		8A	Authors report a slight accentuation of the expression in more anterior somites.
TS20: dermatome	Weak		8A
TS20: myotome	Absent		8A

Structure	Level	Pattern	Image	Note
TS18: sclerotome	Absent		8B
TS18: limb mesenchyme	Weak		8B

Structure	Level	Pattern	Image	Note
TS20: vertebral pre-cartilage condensation	Present		8C	Expression in aggregated mesenchyme of vertebral primordia.

Structure	Level	Pattern	Image	Note
TS25: digit mesenchyme	Present	Regionally restricted	8D	Strong expression in perichondrial, periosteal, periarticular, tendinous and dermal tissues of the digits.

Structure	Level	Pattern	Image	Note
TS25: intervertebral disc	Strong		8E	Strong staining of the intervertebral fissure.
TS25: vertebral cartilage condensation	Weak		8E	Progressively decreasing expression in hypertrophic cartilage of vertebral bodies.

Structure	Level	Pattern	Image	Note
TS25: foot mesenchyme	Present	Regionally restricted	8F	Strong expression in perichondrial, periosteal, periarticular, tendinous and dermal tissues of the foot.

Structure	Level	Pattern	Image	Note
TS20: jaw primordium mesenchyme	Present	Regionally restricted	9A	In the jaw mesenchyme, expression at interface with ectoderm and around the invaginating buds.
TS20: vibrissa mesenchyme	Present		9A	In the jaw mesenchyme, expression at interface with ectoderm and around the invaginating buds.

Structure	Level	Pattern	Image	Note
TS23: dental sac	Strong		9B
TS23: mandible	Present	Regionally restricted	9B	Expression hardly detectable on scattered mesenchymal cells; became pronounced once cells aggreagated in osteogenic core; persisted in differentiating osteoblasts.

Structure	Level	Pattern	Image	Note
TS23: jaw mesenchyme	Present	Regionally restricted	9C	Expression at interface with the ectoderm and around the invaginating buds.
TS23: vibrissa	Present	Regionally restricted	9C	Expression at interface with the ectoderm and around the invaginating buds.

Structure	Level	Pattern	Image	Note
TS21: adrenal gland	Present	Regionally restricted	9D	Expression in a group of medullar cells, but undetectable in the adrenal cortex.

Structure	Level	Pattern	Image	Note
TS25: vibrissa	Present	Regionally restricted	9E	Expression particularly pronounced in mesenchyme surrounding vibrissa. Expression at interface between mesenchyme and epitheium, bot not in embryonic epithelium.

Structure	Level	Pattern	Image	Note
TS25: ganglion	Absent		9F	Authors state expression is undetectable in neural ganglia.

Structure	Level	Pattern	Image	Note
TS21: lung mesenchyme	Present	Regionally restricted	10A	Expression in epithelial- and mesothelial-mesenchymal interfaces.

Structure	Level	Pattern	Image	Note
TS21: pancreas mesenchyme	Present	Regionally restricted	10C	Expression in epithelial- and mesothelial-mesenchymal interfaces.

Structure	Level	Pattern	Image	Note
TS21: mesenchyme of metanephros	Present	Regionally restricted	10E	Expression in periepithelial mesenchyme.
TS21: metanephros epithelium	Absent		10E	Expression in periepithelial mesenchyme.

Structure	Level	Pattern	Image	Note
TS21: stomach mesenchyme	Strong	Regionally restricted	10G	Expression in mesenchyme, mostly on cells and structures in proximity with epithelial tissue.