Nucleic Acids Research Advance Access published online on October 25, 2008
Nucleic Acids Research, doi:10.1093/nar/gkn766
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Database Issue |
Rfam: updates to the RNA families database
1Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, CB10 1SA, UK, 2Howard Hughes Medical Institute, Janelia Farm Research Campus, Ashburn, Virginia, USA, 3Center for Bioinformatics, Department of Biology, University of Copenhagen, Ole Maaloes Vej 5, DK-2200 Copenhagen N, Denmark and 4Faculty of Life Sciences, The University of Manchester, Manchester M13 9PL, UK
*To whom correspondence should be addressed. Tel: +44 1223 494 983; Fax: +44 1223 494 919; Email: pg5{at}sanger.ac.uk
Received October 1, 2008. Revised October 5, 2008. Accepted October 6, 2008.
Rfam is a collection of RNA sequence families, represented by multiple sequence alignments and covariance models (CMs). The primary aim of Rfam is to annotate new members of known RNA families on nucleotide sequences, particularly complete genomes, using sensitive BLAST filters in combination with CMs. A minority of families with a very broad taxonomic range (e.g. tRNA and rRNA) provide the majority of the sequence annotations, whilst the majority of Rfam families (e.g. snoRNAs and miRNAs) have a limited taxonomic range and provide a limited number of annotations. Recent improvements to the website, methodologies and data used by Rfam are discussed. Rfam is freely available on the Web at http://rfam.sanger.ac.uk/and http://rfam.janelia.org/.
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