Lecture 15 Start Codon Prediction
نویسنده
چکیده
The accurate prediction of the translation start site, that is, the correct start codon, is important in order to analyze the putative protein product of a gene. Given the quality of the rest of the process, accurate start codon prediction is the most difficult remaining part of prokaryotic gene prediction. The gene-finding techniques discussed so far do little to predict the correct start codon among all the candidates.
منابع مشابه
Bacterial start site prediction.
With the growing number of completely sequenced bacterial genes, accurate gene prediction in bacterial genomes remains an important problem. Although the existing tools predict genes in bacterial genomes with high overall accuracy, their ability to pinpoint the translation start site remains unsatisfactory. In this paper, we present a novel approach to bacterial start site prediction that takes...
متن کاملA probabilistic method for identifying start codons in bacterial genomes
As the pace of genome sequencing has accelerated, the need for highly accurate gene prediction systems has grown. Computational systems for identifying genes in prokaryotic genomes have sensitivities of 98-99% or higher (Delcher et al., Nucleic Acids Res., 27, 4636-4641, 1999). These accuracy figures are calculated by comparing the locations of verified stop codons to the predictions. Determini...
متن کاملNeural Network Prediction of Translation Initiation Sites in Eukaryotes: Perspectives for EST and Genome Analysis
Translation in eukaryotes does not always start at the first AUG in an mRNA, implying that context information also plays a role. This makes prediction of translation initiation sites a non-trivial task, especially when analysing EST and genome data where the entire mature mRNA sequence is not known. In this paper, we employ artificial neural networks to predict which AUG triplet in an mRNA seq...
متن کاملDeriving ribosomal binding site (RBS) statistical models from unannotated DNA sequences and the use of the RBS model for N-terminal prediction.
Accurate prediction of the position of translation initiation (N-terminal prediction) is a difficult problem. N-terminal prediction from DNA sequence alone is ambiguous is several candidate start sites are close to each other. Protein similarity search is usually unable to indicate the true start of a gene as it would require a strong protein sequence similarity at the N-terminal portion of a p...
متن کاملReduce Manual Curation by Combining Gene Predictions from Multiple Annotation Engines, a Case Study of Start Codon Prediction
Nowadays, prokaryotic genomes are sequenced faster than the capacity to manually curate gene annotations. Automated genome annotation engines provide users a straight-forward and complete solution for predicting ORF coordinates and function. For many labs, the use of AGEs is therefore essential to decrease the time necessary for annotating a given prokaryotic genome. However, it is not uncommon...
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تاریخ انتشار 2000