Critical Reviews in Oral Biology & Medicine, Vol 10, 182-198, Copyright © 1999 by International & American Associations for Dental Research

ARTICLES

BMP receptors in limb and tooth formation

S. Cheifetz
MRC Group in Periodontal Physiology, University of Toronto, Ontario, Canada.

Members of the TGF-beta superfamily signal through receptor complexes comprised of type I and type II receptors. These receptors, which are serine/threonine kinases, form two new classes of transmembrane receptor kinases. The activity of both of the kinases is necessary for signal transduction in response to ligand binding. Bone morphogenetic proteins (BMPs), which are members of the TGF-beta superfamily, bind to multiple type I and type II receptors. There is growing evidence to support the hypothesis that the BMP receptors are differentially regulated during development and that they have both unique and overlapping functions. Thus, the nature and distribution of the BMP receptors, which are reviewed here in the context of the development of limbs and teeth, appear to be critical in the control of the diverse activities of BMPs.

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