Book Viewer

Short Contents | Full Contents | Other books @ NCBI

| Modern Genetic Analysis Chapter 13. Transposable Genetic Elements Mechanism of Transposition Figure 13-11. The structure of Tn3. Tn3 contains 4957 base pairs and codes for three polypeptides: the transposase is required for transposition, the repressor is a protein that regulates the transposase gene (see Chapter 14), and b -lactamase confers ampicillin resistance. Tn3 is flanked by inverted repeats (IR) of 38 base pairs and contains a site designated the internal resolution site necessary for the resolution of Tn3 cointegrates.

© 1999 by W. H. Freeman and Company. All rights reserved.