The International Journal of Developmental Biology

Int. J. Dev. Biol. 45: 219 - 224 (2001)

Vol 45, Issue 1

Special Issue: The Spemann-Mangold Organizer

Making mesoderm--upstream and downstream of Xbra

Published: 30 November -0001

J C Smith

Division of Developmental Biology, National Institute for Medical Research, London, England.


The mesoderm of the amphibian embryo is formed through an inductive interaction in which cells of the vegetal hemisphere of the embryo act on overlying equatorial cells. My laboratory is studying the Brachyury gene, which plays a key role in this interaction, being both necessary and sufficient for normal mesoderm formation. In this article I describe our attempts to understand how Xenopus Brachyury (Xbra) is activated in the right cells at the right time, and then to understand how Xbra exerts its effects.

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