ExPASy

The ExPASy (Expert Protein Analysis System) is a proteomics server of the Swiss Institute of Bioinformatics (SIB) which analyzes protein sequences and structures and two-dimensional gel electrophoresis (2-D Page electrophoresis). The server functions in collaboration with the European Bioinformatics Institute. ExPASy also produces the protein sequence knowledgebase, UniProtKB/Swiss-Prot, and its computer annotated supplement, UniProtKB/Trembl.

Between his installation on 1 August 1993 and 5 April 2007, ExPASy was consulted 1 billion times.