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Biology
Proteins
BLAST (Basic Local Alignment Search Tool) National Center for Biotechnology Information
Use Protein Blast to search your protein sequence against known proteins. The statistical significance of matches are calculated for you.
CCD (Conserved Domains Database), National Center for Biotechnology Information
Enter your protein sequence to see if it matches conserved domains from known proteins.
MMDB (Molecular Modeling Database) National Center for Biotechnology Information
Use MMDB to match your protein sequence against 3-dimensional protein models from the Protein Data Bank, and then view the structure in Cn3D 4.1, a downloadable helper application.
Protein Clusters Database, National Center for Biotechnology Information
"This collection of related protein sequences (clusters) consists of Reference Sequence proteins encoded by complete genomes . . . . The Protein Clusters database provides easy access to annotation information, publications, domains, structures, and external links and analysis tools including multiple alignments, phylogenetic trees, and genomic neighborhoods."
"The Universal Protein Resource (UniProt) is a comprehensive resource for protein sequence and annotation data. The UniProt databases are the UniProt Knowledgebase, the UniProt Reference Clusters, and the UniProt Archive. The UniProt Metagenomic and Environmental Sequences (UniMES) database is a repository specifically developed for metagenomic and environmental data."
