title: The annotation-enriched non-redundant patent sequence databases.
abstract: The EMBL-European Bioinformatics Institute (EMBL-EBI) offers public access to patent sequence data, providing a valuable service to the intellectual property and scientific communities. The non-redundant (NR) patent sequence databases comprise two-level nucleotide and protein sequence clusters (NRNL1, NRNL2, NRPL1 and NRPL2) based on sequence identity (level-1) and patent family (level-2). Annotation from the source entries in these databases is merged and enhanced with additional information from the patent literature and biological context. Corrections in patent publication numbers, kind-codes and patent equivalents significantly improve the data quality. Data are available through various user interfaces including web browser, downloads via FTP, SRS, Dbfetch and EBI-Search. Sequence similarity/homology searches against the databases are available using BLAST, FASTA and PSI-Search. In this article, we describe the data collection and annotation and also outline major changes and improvements introduced since 2009. Apart from data growth, these changes include additional annotation for singleton clusters, the identifier versioning for tracking entry change and the entry mappings between the two-level databases. Database URL: http://www.ebi.ac.uk/patentdata/nr/
authors: European Bioinformatics Institute, EMBL Outstation, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CD10 1SD, UK.
authors: Weizhong
authors: W
authors: Li
authors: Bartosz
authors: B
authors: Kondratowicz
authors: Hamish
authors: H
authors: McWilliam
authors: Stephane
authors: S
authors: Nauche
authors: Rodrigo
authors: R
authors: Lopez
mesh_terms: D022126:Access to Information; D000595:Amino Acid Sequence; D001483:Base Sequence; D003625:Data Collection; D030561:Databases, Nucleic Acid; D058977:Molecular Sequence Annotation; D010330:Patents as Topic
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