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The small GTPase Rap1 is an immediate downstream target for Hoxb4 transcriptional regulation
Ali S Morsi El-Kadi1, Paul in der Reiden, Antony Durston
1Department of Anatomy and Developmental Biology, St. George's Hospital Medical School, Cranmer Terrace, London SW17 0RE, UK.
Mechanisms of Development
|April 19, 2002
Abstract:
The Hox genes are a family of homeodomain-containing transcription factors which determine anteroposterior identity early on in development. Although a lot is now known about their regulation and function, very little is known of their effector (downstream target) genes. Here we show that the small GTPase Rap1 is a direct, negatively regulated target of Hoxb4 and is excluded from Hoxb4 expressing cells.