Probe:	Hox-5.2 probe1
Probe preparation:	Antisense labelled with S35 RNA
Visualized with:	Autoradiography

Structure	Level	Pattern	Image	Note
TS13: trunk mesenchyme	Present	Regionally restricted		Expression in the forelimb field before limb bud outgrowth.

Structure	Level	Pattern	Image	Note
TS14: forelimb bud mesenchyme	Strong	Regionally restricted	1a left Hox-5.2	Strong expression in the limb bud mesoderm, with a sharp expression boundary.

Structure	Level	Pattern	Image	Note
TS14: forelimb bud mesenchyme	Strong	Regionally restricted	1a right Hox-5.2	Strong expression in the limb bud mesoderm, with a sharp expression boundary.

Structure	Level	Pattern	Image	Note
TS15: forelimb bud mesenchyme	Present	Regionally restricted	1b Hox-5.2	Expression in proximal limb mesoderm, with a distinct proximal expression boundary.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud mesenchyme	Present	Regionally restricted	1c Hox-5.2	Expression in proximal limb mesoderm, with a distinct proximal expression boundary.

Structure	Level	Pattern	Image	Note
TS20: forelimb pre-cartilage condensation	Strong	Regionally restricted	1d Hox-5.2	Expression restricted to central limb precartilage condensations. Strong expression in proximal humeral head blastema. Weaker expression in the posterior half of the forelimb tip.

Structure	Level	Pattern	Image	Note
TS20: forelimb mesenchyme	Present	Regionally restricted	1e Hox-5.2	Weak expression in the posterior half of the forelimb tip.
TS20: hindlimb mesenchyme	Present	Regionally restricted	1e Hox-5.2	Weak expression in the posterior half of the forelimb tip.

Structure	Level	Pattern	Image	Note
TS22: foot mesenchyme	Absent		1f Hox-5.2	No expression in mesenchymal cells surrounding the phalangeal cartilage anlage.

Structure	Level	Pattern	Image	Note
TS15: forelimb bud mesenchyme	Present		2b , 2a
TS15: forelimb bud ectoderm	Absent		2b , 2a

Structure	Level	Pattern	Image	Note
TS16: forelimb bud mesenchyme	Present	Regionally restricted	3a Hox-5.2	Expression in posterior mesoderm; no expression in the most anterior mesoderm. Weak expression in the posterior half of the forelimb tip.

Structure	Level	Pattern	Image	Note
TS16: forelimb bud mesenchyme	Present	Regionally restricted	3b Hox-5.2	Expression in a wide part of the bud, with no expression in the very anterior margin.

Structure	Level	Pattern	Image	Note
TS16: forelimb bud mesenchyme	Present	Regionally restricted	3c Hox-5.2	Expression in a wide part of the bud, with no expression in the very anterior margin.

Structure	Level	Pattern	Image	Note
TS16: forelimb bud mesenchyme	Present	Regionally restricted	3d Hox-5.2	Expression in a wide part of the bud, with no expression in the very anterior margin.

Structure	Level	Pattern	Image	Note
TS16: forelimb bud mesenchyme	Present	Regionally restricted	3e Hox-5.2	Gradual decrease in expression towards more distal regions.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud mesenchyme	Present	Regionally restricted	4a Hox-5.2	Proximally, expression in the whole mesoderm, but stronger in the central condensation.

Structure	Level	Pattern	Image	Note
TS20: forelimb mesenchyme	Present	Regionally restricted	4b Hox-5.2
TS20: hindlimb mesenchyme	Present	Regionally restricted	4b Hox-5.2