## Description

The miRNA track shows microRNAs from the miRBase at The Wellcome Trust Sanger Institute.

## Display Conventions and Configuration

The precursor forms of microRNAs (mirs) are represented by thin blocks. miRNAs in the sense orientation are shown in black; those in the reverse orientation are colored grey.

To display only those items that exceed a specific unnormalized score, enter a minimum score between 0 and 1000 in the text box at the top of the track description page.

## Methods

Precursor miRNAs from miRBase were aligned against the genome using blat. The extents of the precursor sequences were not generally known, and were predicted based on base-paired hairpin structure. miRBase is described in Griffiths-Jones, S. et al. (2006). The miRNA Registry is described in Griffiths-Jones, S. (2004) and Weber, M.J. (2005) in the References section below.

## Credits

This track was created by Michel Weber of Laboratoire de Biologie Moléculaire Eucaryote, CNRS Université Paul Sabatier (Toulouse, France), Yves Quentin of Laboratoire de Microbiologie et Génétique Moléculaires (Toulouse, France) and Sam Griffiths-Jones of The Wellcome Trust Sanger Institute (Cambridge, UK).

## References

When making use of these data, please cite:

Griffiths-Jones S, Grocock RJ, van Dongen S, Bateman A, Enright AJ. miRBase: microRNA sequences, targets and gene nomenclature. Nucleic Acids Res. 2006 Jan 1;34(Database issue):D140-4.

Griffiths-Jones S. The microRNA Registry. Nucleic Acids Res. 2004 Jan 1;32(Database issue):D109-11.

Weber MJ. New human and mouse microRNA genes found by homology search. Febs J. 2005 Jan;272(1):59-73.

You may also want to cite The Wellcome Trust Sanger Institute miRNA Registry.

The following publication provides guidelines on miRNA annotation:
Ambros V, Bartel B, Bartel DP, Burge CB, Carrington JC, Chen X, Dreyfuss G, Eddy SR, Griffiths-Jones S, Marshall M et al. A uniform system for microRNA annotation. RNA. 2003 Mar;9(3):277-9.

For more information on blat, see
Kent WJ. BLAT - the BLAST-like alignment tool. Genome Res. 2002 Apr;12(4):656-64.