Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.


Cover Figure

ONLINE COVER This week features a Research Article describing the analysis of the SH2 domain–containing proteins in 21 species, which provides insight into the evolution of modular protein domains and organismal complexity. The image is an artist's rendition of how the number of SH2 domain–containing proteins increases with organismal complexity. [Image: Sophia J. Lee, freelance artist]

[Table of Contents]

To Advertise     Find Products

Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882