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Home / Proceedings / Proceedings Of The Second International Conference On Intelligent Systems For Molecular Biology / Book One

The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames

March 15, 2023

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Authors

Victor V. Solovyev

Asaf A. Salamov

and Charles B. Lawrence

DOI:


Abstract:

Discriminant analysis is applied to the problem of recogni tion 5'-, internal and 3'-exons in human DNA sequences. Specific recognition functions were developed for reveal ing exons of particular types.The method based on a splice site prediction algorithm that uses the linear Fisher discrim inant to combine the information about significant triplet frequencies of various functional parts of splice site regions and preferences of oligonucleotides in protein coding and intron regions (Solovyev, Lawrence, 1994). The accuracy of our splice site recognition function is about 97%. A dis criminant function for 5'-exon prediction includes hexanu cleotide composition of upstream region, triplet composition around the ATG codon, ORF coding potential, donor splice site potential and composition of downstream intron region. For internal exon prediction, we combine in a discriminant function the characteristics describing the 5'- intron region, donor splice site, coding region, acceptor splice site and 3'-intron region for each open reading frame flanked by GT and AG base pairs. The accuracy of precise internal exon recognition on a test set of 451 exon and 246693 pseudoexon sequences is 77% with a specificity of 79% and a level of pseudoexon ORF prediction of 99.96%. The recognition quality computed at the level of individual nucleotides is 89% for exon sequences and 98% for intron sequences. A discriminant function for 3'-exon prediction includes octanucleotide composition of upstream intron region, triplet composition around the stop codon, ORF coding potential, acceptor splice site potential and hexanu cleotide composition of downstream region. We unite these three discriminant functions in exon predicting program FEX (find exons). FEX exactly predicts 70% of 1016 exons from the test of 181 complete genes with specificity 73%, and 89% exons are exactly or partially predicted. On the average, 85% of nucleotides were predicted accurately with specificity 91%.

Topics: ISMB

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Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames Proceedings Of The Second International Conference On Intelligent Systems For Molecular Biology (1994) .

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames ISMB 1994, .

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence (1994). The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames. Proceedings Of The Second International Conference On Intelligent Systems For Molecular Biology, .

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence. The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames. Proceedings Of The Second International Conference On Intelligent Systems For Molecular Biology 1994 p..

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence. 1994. The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames. "Proceedings Of The Second International Conference On Intelligent Systems For Molecular Biology". .

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence. (1994) "The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames", Proceedings Of The Second International Conference On Intelligent Systems For Molecular Biology, p.

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence, "The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames", ISMB, p., 1994.

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence. "The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames". Proceedings Of The Second International Conference On Intelligent Systems For Molecular Biology, 1994, p..

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence. "The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames". Proceedings Of The Second International Conference On Intelligent Systems For Molecular Biology, (1994): .

Victor V. Solovyev||Asaf A. Salamov||and Charles B. Lawrence. The Prediction of Human Exons By Oligonucleotide Composition and Disriminant Analysis of Spliceable Open Reading Frames. ISMB[Internet]. 1994[cited 2023]; .


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