Probe:	biglycan probe1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS21: mandible	Present		1e	Authors report no characteristic expression.

Structure	Cell Type	Level	Pattern	Image	Note
TS22: mandible	osteoblast	Present		1j	Expression started in osteoblasts but differential expression hardly recognized.

Structure	Cell Type	Level	Pattern	Image	Note
TS23: maxilla	osteoblast	Present		2f	Expression in osteoblasts around maxillary bone. Slight expression within maxillary bone.

Structure	Level	Pattern	Image	Note
TS22: head mesenchyme	Present	Regionally restricted	3e	Expression in mesenchymal tissues between tympanic ring and Meckel's cartilage.
TS22: tympanic ring	Absent		3e

Structure	Level	Pattern	Image	Note
TS23: tympanic ring	Weak	Regionally restricted	3j	Slight expression within tympanic ring. No expression around tympanic ring.

Structure	Cell Type	Level	Pattern	Image	Note
TS24: tympanic ring	osteoblast	Present		3o	Expression in osteoblasts around tympanic ring. Slight expression within tympanic ring.

Structure	Cell Type	Level	Pattern	Image	Note
TS22: mandible ramus	osteoblast	Present	Regionally restricted	4e	Expression in osteoblasts around anterior side of bone trabeculae. No expression around posterior side.

Structure	Cell Type	Level	Pattern	Image	Note
TS23: mandible ramus	osteoblast	Present	Regionally restricted	4j	Expression in osteoblasts in periosteum. Expression in endosteum (interior region of mandibular ramus. No expression around bone collar.