This track shows ribosomal RNA (rRNA) in the functional RNA database .
|Description provided by Sequence Ontology (SO):|
|RNA that comprises part of a ribosome, and that can provide both structural scaffolding and catalytic activity.|
Short sequences (shorter than 30nt) are aligned to genome by SeqMap  with 0 mismatch, no-gap and no-repeat.
Other sequences are aligned to genome by BLAT  with identity>=99, coverage>=90 and no-repeat.
 Kin T, Yamada K, Terai G, Okida H, Yoshinari Y, Ono Y, Kojima A, Kimura Y, Komori T, Asai K. fRNAdb: a platform for mining/annotating functional RNA candidates from non-coding RNA sequences. Nucleic Acids Res. 2007 Jan;35(Database issue):D145-8.
 Jiang H, Wong WH SeqMap: mapping massive amount of oligonucleotides to the genome. Bioinformatics. 2008 Oct 15;24(20):2395-6. Epub 2008 Aug 12.
 Kent WJ. BLAT--the BLAST-like alignment tool. Genome Res. 2002 Apr;12(4):656-64.