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Fig. 7 Zebrafish TJP expression patterns in other selected organs. Expression of TJPs in selected organs was detected by whole mount in situ hybridization. (A) Low expression of tjp1.1 is detected in the medial region of the eyes at 18 hpf (arrowheads). (B,C) Pectoral fin buds. The pectoral fin buds do not only express tjp3 (see Fig. 5E) but also tjp1.1 (A, arrowhead) and tjp1.2 (B, arrowheads) at 2–3 dpf. (D–F) Duct of Cuvier. The Duct of Cuvier expresses tjp1.2 (D), tjp2.1 (E), and tjp3 (F, arrowheads). (G,H) Heart. The newly forming heart transiently expresses high levels of the tjp1.2 (G, arrow) and low levels of tjp3 (H, arrow) at 2 dpf. (I) Notochord. The posterior part of the notochord retains tjp1.2 expression up to 3 dpf (arrowhead). (J) Caudal vein. The caudal vein expresses tjp2.1 at 3 dpf (arrows).
Reprinted from Gene expression patterns : GEP, 7(7), Kiener, T.K., Sleptsova-Friedrich, I., and Hunziker, W., Identification, tissue distribution and developmental expression of tjp1/zo-1, tjp2/zo-2 and tjp3/zo-3 in the zebrafish, Danio rerio, 767-776, Copyright (2007) with permission from Elsevier. Full text @ Gene Expr. Patterns