Expasy

It is an extensible and integrative portal which provides access to over 160 databases and software tools and supports a range of life science and clinical research areas, from genomics, proteomics and structural biology, to evolution and phylogeny, systems biology and medical chemistry.

The individual resources (databases, web-based and downloadable software tools) are hosted in a decentralized way by different groups of the SIB Swiss Institute of Bioinformatics and partner institutions.

Originally, it was called ExPASy (Expert Protein Analysis System) and acted as a proteomics server to analyze protein sequences and structures and two-dimensional gel electrophoresis (2-D Page electrophoresis).

[3] Among others, ExPASy hosted the protein sequence knowledge base, UniProtKB/Swiss-Prot, and its computer annotated supplement, UniProtKB/TrEMBL.

As of 5 April 2007[update], ExPASy had been consulted 1 billion times since its installation on 1 August 1993.