A comprehensive dictionary of protein accession codes for complete protein accession identifier alias resolving

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Abstract
In mass spectrometry‐based proteomics, protein identification results usually consist of peptide sequences and database‐dependent accession identifiers of the matching proteins. Often certain annotations are only available in particular databases that in turn must be queried by a certain identifier. In order to simplify and unify the tracing of identified proteins back to their original annotation information, a system capable of set‐oriented mapping the different accession identifiers of proteins derived from multiple sequence database sources has been developed. This allows unification of the access to protein information and tracing to other online resources providing additional information as well as resolving cross‐references of protein identifications. The interface of seqDB is available via http://www.protein‐ms.de following the link to seqDB.