ExPASy

ExPASy is a bioinformatics resource portal operated by the Swiss Institute of Bioinformatics (SIB). It provides access to a wide range of biological data and bioinformatics tools, primarily for the life sciences community. The name ExPASy is an acronym for "Expert Protein Analysis System". Its core function is to offer a comprehensive and integrated suite of databases and computational tools to analyze protein sequences, structures, and functions.

The portal hosts numerous databases, including SWISS-PROT (now UniProtKB/Swiss-Prot), which is a curated, high-quality protein sequence database. Other important databases cover protein modifications, protein families, and protein structures. ExPASy is also known for its collection of bioinformatics tools. These tools are designed for tasks such as sequence alignment, protein identification, prediction of protein properties (like molecular weight and isoelectric point), and analysis of protein domains and motifs. Researchers utilize ExPASy for a variety of applications, including gene function annotation, drug discovery, and evolutionary studies. The portal is freely accessible to the scientific community, contributing significantly to the advancement of biological research.