Pfam is a comprehensive database of protein families that provides information about their sequences and functional characteristics. It is widely used in bioinformatics and molecular biology for the identification of protein domains and families based on sequence alignments. Key features of Pfam include: 1. **Protein Domains**: Pfam focuses on identifying and categorizing protein domains, which are distinct and conserved parts of proteins that can evolve, function, and exist independently of the rest of the protein chain.
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