* Mascot has become established as the de facto standard for mass spectrometry database searching in proteomics - it is licensed for in-house use by more than a thousand academic and commercial laboratories, and described by independent market researchers Frost & Sullivan as "the gold standard for the searching of databases with mass spectrometric data". * The only companion guide to this essential proteomics tool * Officially endorsed by Matrix Science * Written by expert users with a long history in the mass spectrometry and proteomics scientific communities * Includes a key chapter on interpreting Mascot results