Probe:	MGC clone 41494
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS15: forelimb bud mesenchyme	Present		3a
TS15: future brain	Absent		3a
TS15: neural tube	Absent		3a
TS15: trunk somite	Absent		3a

Structure	Level	Pattern	Image	Note
TS17: forelimb bud mesenchyme	Strong	Regionally restricted	3b , 3c	Expression is in the mesenchyme underlying the apical ectodermal ridge, expression is more ventral.
TS17: hindlimb bud	Strong		3b , 3c
TS17: trunk somite	Weak	Regionally restricted	3b , 3c	Expression is in the somites in the posterior part of the trunk. Expression decreases in the anteriorly located somites adjacent to the forelimb bud.

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Present	Regionally restricted	3d	Expression is in two dorso-lateral regions of the neural tube.

Structure	Level	Pattern	Image	Note
TS20: spinal cord	Present	Regionally restricted	3e	Expression is in two dorso-lateral regions of the neural tube.

Structure	Level	Pattern	Image	Note
TS20: vibrissa	Present		3f
TS20: forelimb	Present	Regionally restricted	3f	Expression is in the proximal part.

Structure	Level	Pattern	Image	Note
TS20: vibrissa mesenchyme	Present		3g

Structure	Level	Pattern	Image	Note
TS21: hand	Strong	Regionally restricted	3h	Expression is at a proximal level near the lateral margin of digit one.
TS21: forelimb interdigital region	Present	Regionally restricted	3h	Expression is in a proximal domain.

Structure	Level	Pattern	Image	Note
TS17: forelimb bud	Present		3i
TS17: hindgut	Present		3i