Probe:	CTCF cDNA2
Probe preparation:	Antisense RNA

Structure	Level	Pattern	Image	Note
TS17: embryo	Present		1A E10.5	Expression was widely detected.
TS17: 1st branchial arch	Present		1A E10.5	Expression was enriched.
TS17: somite	Present		1A E10.5 , 1A E10.5 inset

Structure	Level	Pattern	Image	Note
TS20: embryo	Present		1A E12	Expression was widely detected.
TS20: somite	Present		1A E12 , 1A E12 inset
TS20: brain	Present		1A E12
TS20: jaw primordium	Present		1A E12
TS20: limb	Present		1A E12
TS20: head mesenchyme	Present	Regionally restricted	1A E12	Expression was observed in facial muscles.

Structure	Level	Pattern	Image	Note
TS21: head mesenchyme	Present	Regionally restricted	1A E13 Left	Expression was observed in facial muscles.
TS21: brain	Present		1A E13 Left
TS21: pectoral girdle and thoracic body wall muscle	Trace	Regionally restricted	1A E13 Left inset , 1A E13 Left	Expression in intercostal muscles.
TS21: limb musculature	Trace		1A E13 Left

Structure	Level	Pattern	Image	Note
TS21: head mesenchyme	Present	Regionally restricted	1A E13 Right	Expression was observed in facial muscles.
TS21: brain	Present		1A E13 Right
TS21: limb musculature	Trace		1A E13 Right