In Silico Promoter prediction:

Promoter can be predicted using various software's. Sometimes, these programs may not produce reliable results.

Note: The list of program given here is partial. There are lot of other programs available.

For a detailed description of how the promoter prediction programs work, read a review by Dan S. Prestridge in the chapter "Computer Software for Eukaryotic Promoter Analysis" from Methods in Molecular Biology, Vol. 130, Transcription factor protocols Edited by: M. J. Tymms (1999), Humana Press Inc., Totowa, NJ.

Promoter-Inspector: Prediction is based on context specific features which were extracted from training sequences (all mammalian sequences) by a heuristic free approach. The novel idea of the PromoterInspector approach is the way of feature definition: Features are defined by equivalence classes of IUPAC groups which allow a fuzzy description of the promoter context. A prediction is based on the analysis of feature frequencies.

FirstEF: FirstEF* (First Exon Finder) is a 5' terminal exon and promoter prediction program. It consists of different discriminant functions structured as a decision tree. The probabilistic models are optimized to find potential first donor sites and CpG-related and non-CpG-related promoter regions based on discriminant analysis. For every potential first donor site (GT) and an upstream promoter region, FirstEF decides whether or not the intermediate region can be a potential first exon, based on a set of quadratic discriminant functions.

Neural Network Promoter Prediction: The basis of the NNPP program is a time-delay neural network. The time-delay network consists mainly of two feature layers, one for recognizing the TATA-box and one for recognizing the "Initiator", which is the region spanning the transcription start site. Both feature layers are combined into one output unit, which gives output scores between 0 and 1.

TSSG/W: Algorithm predicts potential transcription start positions by linear discriminant function combining characteristics describing functional motifs and oligonucleotide composition of these sites.

Promoter Scan: Predicts Promoter regions based on scoring homologies with putative eukaryotic Pol II promoter sequences. The analysis is done using the PROSCAN Version 1.7 suite of programs 

Back to Promoter Resources Page

 

Last Updated 

11-01-2004

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