Figure 4.

Mouse Sox18 expression. (A) Northern blots of total RNAs from various fetal and adult mouse tissues hybridised with the mouse Sox18. A major Sox18 mRNA band was detected at ∼1.6 kb. Positions of the ribosomal RNAs are indicated on the left (28S and 18S). Relative equal amounts of RNA were present in each lane as judged by examination of the ethidium bromide staining (lower panel showing 28S). (B) Colocalisation of Sox7 and Sox18 in the intersomitic vessels of the 11.5 d.p.c. mouse embryo. A dual colour FISH was performed using two combined labelled RNA probes: biotin-labelled Sox7 antisense probe (probe A) and digoxigenin-labelled Sox18 antisense probe.