Abstract

The complex genetic circuits found in cells are ordinarily studied by analysis of genetic and biochemical perturbations. The inherent modularity of biological components like genes and proteins enables a complementary approach: one can construct and analyse synthetic genetic circuits based on their natural counterparts. Such synthetic circuits can be used as simple in vivo models to explore the relation between the structure and function of a genetic circuit. Here we describe recent progress in this area of synthetic biology, highlighting newly developed genetic components and biological lessons learned from this approach.

1. California Institute of Technology, Division of Biology and Department of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA

Correspondence to: Michael B. Elowitz¹ Correspondence should be addressed to M.B.E. (Email: melowitz@caltech.edu).

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