Probe:	pSP65 92b
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS20: forearm mesenchyme	Present	Regionally restricted	2A/B	Intense expression in mesenchymal cells around developing cartilages of the radius and ulna.

Structure	Level	Pattern	Image	Note
TS23: hand mesenchyme	Strong	Single cells	2C/D	Intense expression in single cells in the perichondrium of the metacarpal cartilages.
TS23: forelimb digit mesenchyme	Present	Single cells	2C/D	Expression in single cells localized in the perichondrium at the tips of the digits.

Structure	Level	Pattern	Image	Note
TS24: forelimb skeleton	Strong	Regionally restricted	2E/F	Very intense expression in the ossifying regions of the long bones, in large agggregates of single cells in the growth plates at sites of endochondral ossification.
TS24: forelimb mesenchyme	Present	Regionally restricted	2E/F	Expression at many sites in the perichondrium and periosteum.

Structure	Level	Pattern	Image	Note
TS21: mandible mesenchyme	Strong	Regionally restricted	3A

Structure	Level	Pattern	Image	Note
TS22: mandible	Strong	Spotted	3B	Spots of strong expression in central area of the upper and lower jaw (maxillary and mandibular processes).
TS22: maxilla	Strong	Spotted	3B	Spots of strong expression in central area of the upper and lower jaw (maxillary and mandibular processes).

Structure	Level	Pattern	Image	Note
TS22: jaw	Strong	Single cells	3D/E	Strong expression in single cells in the developing jaw bones.

Structure	Level	Pattern	Image	Note
TS26: mandible	Strong	Widespread	4A	Intense expression throughout the developing bone of the mandible.
TS26: lower jaw tooth	Absent		4A

Structure	Level	Pattern	Image	Note
TS26: mandible	Strong	Regionally restricted	4B	Expression in large numbers of cells at the site of endochondral ossification beneath the condylar cartilage.

Structure	Level	Pattern	Image	Note
TS28: mandible	Very strong	Regionally restricted	4C	Expecially intense expression in the area of the bone through which the incisor is about to erupt.

Structure	Level	Pattern	Image	Note
TS28: mandible	Strong	Regionally restricted	4D/E	Expression in the bone is most intense at the resorptive surface around the growing tooth germ.

Structure	Level	Pattern	Image	Note
TS28: forelimb	Strong	Single cells	5B , 5E	Intense expression in cells with a similar distribution as osteoclasts.

Structure	Level	Pattern	Image	Note
TS22: hair follicle	Absent		6A/B
TS22: skin	Absent		6A/B

Structure	Level	Pattern	Image	Note
TS22: clavicle cartilage condensation	Present	Spotted	6C/D	Spots of expression in the periosteum of the clavicle.

Structure	Level	Pattern	Image	Note
TS22: brain	Absent
TS22: salivary gland	Absent

Structure	Level	Pattern	Image	Note
TS26: metanephros	Absent		6E/F

Structure	Level	Pattern	Image	Note
TS26: mammary gland	Absent		6G/H

Structure	Level	Pattern	Image	Note
TS28: lung	Absent		7A/B

Structure	Level	Pattern	Image	Note
TS28: heart	Absent		7C/D

Structure	Level	Pattern	Image	Note
TS28: bone marrow	Present	Single cells	7E/F

Structure	Level	Pattern	Image	Note
TS28: intestine	Absent		7G/H