Use of Dominant Negative Constructs to Modulate Gene Expression

Document Type

Book Chapter

Publication Date

1997

Publisher

Elsevier

Abstract

This chapter reviews the many different ways to generate dominant negative mutations in a protein, and discusses their mechanisms of action. It also highlights the potential interpretations of the biologic effects observed and the most stringent controls. Molecular techniques have revolutionized the study of developmental problems in the latest years, allowing the dissection of signaling and genetic pathways in several developmental systems. Among these new tools are mutant proteins that inhibit in a dominant fashion the function of their normal counterpart in vivo. Diverse techniques allow modern embryologists to isolate novel genes from a variety of organisms at an amazing pace. With the various genome sequencing projects promising to characterize virtually all the genes of a selected number of organisms, the challenge for the present and future has become the assignment of specific functions to each gene product. The chapter provides specific examples of dominant negative proteins that have been engineered or occur naturally, and refers to them to illustrate specific advantages and caveats of their use.

Chapter of

Cellular and Molecular Procedures in Developmental Biology

Part of

Current Topics in Developmental Biology

Editor

Flora de Pablo
Alberto Ferrús
Claudio D. Stern

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