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Mech Dev July 1, 1999; 85 (1-2): 97-102.

A conserved 30 base pair element in the Wnt-5a promoter is sufficient both to drive its'' early embryonic expression and to mediate its'' repression by otx2.

Morgan R , Hooiveld MH , In der Reiden P , Durston AJ .

We have characterised a short (30 base pair) element from the Xenopus Wnt-5a promoter which is nearly identical to one located in the human Wnt-5a promoter, and has the same position relative to the transcription start site. When placed in front of a LacZ gene, this element can reproduce the same expression pattern observed for Wnt-5a at the late gastrula stage. Further we show that gastrula stage Wnt-5a expression is repressed by otx2, something which is reflected by the mutually exclusive expression patterns of these two genes. The isolated promoter sequence contains an OTX- consensus binding site and its'' activity in embryos is repressed by ectopically expressed otx2.

PubMed ID: 10415350
Article link: Mech Dev

Genes referenced: cnn1 muc2 otx2 wnt5a

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