Promoter sequence of fibroin gene assigned by in vitro transcription
Sequence Analysis In Promoter Regions
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Transcript of Sequence Analysis In Promoter Regions
BioMed Central
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BMC Bioinformatics
Open AccessPoster presentationSequence Analysis In Promoter RegionsJeremy Austin*
Address: Cranfield University, Department of Analytical Science and Informatics (DASI). Cranfield University, Barton Rd, Silsoe, Bedfordshire, MK45 4DT, UK.
Email: Jeremy Austin* - [email protected]
* Corresponding author
Gene Expression and RegulationAlgorithm DevelopmentA gene's promoter region is a prominent factor in deter-mining that gene's expression networks and cycle. The sig-nificant elements which determine the promoter's effectare generally discovered through laboratory methods.This project's aim is to develop high throughput sequenceanalysis methods for identifying the important promoterfeatures and classifying promoters according to the occur-rence of these features.
Saccharomyces Cervisiae, as one of the first fullysequenced organisms which also has publicly availableexpression data, was chosen as a case study for this work.Motifs of over-represented sequence segments weresought using a bespoke implementation of the Smith-Waterman algorithm running on the Cambridge-Cran-field high performance computer facility. The algorithmidentifies all pairs of sequence segments whose similaritysurpasses a given threshold. The found segments are thengrouped by similarity, and those groups with a manymembers are the motifs which are over-represented.
The motifs identified using this approach are compared toknown transcription factor binding sites from the S. Cer-visiae Promoter Database. Most of the motifs producedare expected to correspond with binding sites; otherscould be new discoveries. Having validated the methodon S. Cervisiae, it can then be used with some confidenceto analyse promoters from other species, whose character-istics are less well understood.
from BioSysBio: Bioinformatics and Systems Biology ConferenceEdinburgh, UK, 14–15 July 2005
Published: 21 September 2005
BMC Bioinformatics 2005, 6(Suppl 3):P2<supplement> <title><p>BioSysBio: Bioinformatics and Systems Biology Conference</p></title> <note>Meeting abstracts – A single PDF containing all abstracts in this Supplement is available <a href="http://www.biomedcentral.com/content/files/pdf/1471-2105-6-S3-full.pdf">here</a>.</note> <url>http://www.biomedcentral.com/content/pdf/1471-2105-6-S3-info.pdf</url> </supplement>