Protein Information Resources

PIR (http //pir.georgetown.edu/), Protein Information Resource, located at Georgetown University Medical Center, which has provided the first international Protein Sequence Database. 

The protein sequence databases are the most comprehensive source of information on proteins. The goal of this chapter is to describe the different protein sequence databases available to researchers. It is necessary to distinguish between universal databases that cover proteins from all species and specialized data collections that store information about specific families or groups of proteins, or about the proteins of a specific organism. Two categories of universal protein sequence databases can be discerned simple archives of sequence data and annotated databases in which additional information has been added to the sequence record. The next section describes the Protein Information Resource (PIR), the oldest protein sequence database SWISS-PROT, an annotated universal sequence database and TrEMBL, the supplement of... 

Protein information resource (Barker et al., 1999) was established in 1984 by the National Biomedical Research Foundation (NBRF) as a successor to the original NBRF Protein Sequence Database, developed over 20 years by the late Margaret O. Dayhoff and published as the Atlas of Protein Sequence and Structure (Dayhoff et al., 1965 Dayhoff, 1979). Since 1988 the database has been maintained by PIR-Intemational, a collaboration between the NBRF, the Munich Information Center for Protein Sequences (MIPS), and the Japan International Protein Information Database (JIPID). 

PIR Protein sequence database of Protein Information Resource (PIR)... 

Protein primary structure databases include the following ExPASy Molecular Biology Server (Swiss-Prot) expasy.ch/ Protein Information resources (PIR) pir.georgetown.edu Protein Research Foundation (PRF) prf.or.jp/en/os.html. 

There are different classes of protein sequence databases. Primary and secondary databases are used to address different aspects of sequence analysis. Composite databases amalgamate a variety of different primary sources to facilitate sequence searching efficiently. The primary structure (amino acid sequence) of a protein is stored in primary databases as linear alphabets that represent the constituent residues. The secondary structure of a protein corresponding to region of local regularity (e.g., a-helices, /1-strands, and turns), which in sequence alignments are often apparent as conserved motifs, is stored in secondary databases as patterns. The tertiary structure of a protein derived from the packing of its secondary structural elements which may form folds and domains is stored in structure databases as sets of atomic coordinates. Some of the most important protein sequence databases are PIR (Protein Information Resource), SWISS-PROT (at EBI and ExPASy), MIPS (Munich Information Center for Protein Sequences), JIPID (Japanese International Protein Sequence Database), and TrEMBL (at EBI). ... 

The Protein Information Resources (PIR) (Wu et al., 2002) of NBRF in collaboration with MIPS and JIPID produces the annotated protein sequence database in the PIR-MIPS International Protein Sequence Database (PSD). The PSD is a comprehensive annotated and nonredundant protein sequence database. Its annotation includes concurrent cross-references to other sequence, structure, genomic and citatation databases, as well as functional descriptions and structural features. The PIR-International database is accessible at the PIR site, http //pir, georgetown.edu, and at the MIPS site, http //www.mips.biochem.mpg.de. 

Universal Protein Knowledgebase (UniProt). European Bioinformatics Institute (EBI), Swiss Institute of Bioinformatics (SIB), Protein Information Resource (PIR), Georgetown Univ. URL http //www.uniprot.org. Central repository of protein sequence and function created by joining the information contained in Swiss-Prot, TrEMBL, and PIR. A central access point for extensive curated protein information, including function, classification, and cross-reference. 

PIR (Protein Information Resource)-PSD SWISS-PROT (at ExPASy) SWISS-PROT(atEBI) ... 

PIR Protein information resource Protein sequence database http //pir.georgetown.edu/... 

R. S. Ledley, P. Kourtesis, B. E. Suzek, C. R. Vinayaka, J. Zhang, and W. C. Barker, Nucleic Acids Res., 31, 345 (2003). The Protein Information Resource. Available http // pir.georgetown.edu/home.shtml. 

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