Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Researchers are eager to map out all the signaling pathways regulated by protein kinases. Many new protocols and reagents are available to tackle this formidable task. Laura Bonetta reports.