Expression of Cx genes in liver and stomach of different embryonic stages

Table 1 A list of plasmids containing Cx cDNA

Plasmids	Vectors	Restriction enzymes	Inserts (kb)	Species
pCx26	pSG5	BamH I	0.68	human
pCx31.1	SP63T	Bgl II	0.85	mouse
pCx32	pGEM3	EcoR I	1.5	rat
pCx33	SP64T	Bgl II	0.9	rat
pCx37	SP64T	Hind III/Xba I	1.25	mouse
pCx40	pGEM4z	EcoR I/Xba I	1.1	mouse
pCx43	pSG5	BamH I	1.11	human
pCx46	BSK+	EcoR I	1.6	human
pGAPDH		EcoR I/Hind III	0.6	human

Table 2 Expression of Cx genes in different organs at different fetal ages

Connexin genes	2 month		3 month		4 month		5 month
	Liver	Stomach	Liver	Stomach	Liver	Stomach	Liver	Stomach
Cx26	++	+	+++	+	++	+	+	+
Cx31	-	-	-	-	-	-	-	-
Cx31.1	-	-	-	-	-	-	-	-
Cx32	+++	-	+++	+	+++	++	+++	+++
Cx37	-	++	-	+++	-	-	-	++
Cx40	-	+	-	++	-	-	-	+++
Cx43	++	-	+++	-	++	++	+	++
Cx46	-	-	-	-	-	-	-	-

+++: high, ++: moderate, +: low, -: no or weak