Domain Duplication and Gene Elongation
Published Online: 15 JUL 2006
Copyright © 2001 John Wiley & Sons, Ltd. All rights reserved.
How to Cite
Li, W.-H. and Makova, K. D. 2006. Domain Duplication and Gene Elongation. eLS. .
- Published Online: 15 JUL 2006
A protein domain is a well-defined region within a protein that performs a specific function. Thus duplication of a protein domain may enhance the function of the protein. The fact that many extant proteins contain duplicated domains suggests that present-day complex proteins have evolved from simple proteins mainly via domain duplication.
- protein domain;
- new function