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Modeling sequencing errors by combining Hidden Markov models

MPG-Autoren

Lottaz,  C.
Max Planck Society;

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Zitation

Lottaz, C., Iseli, C., Jongeneel, C. V., & Bucher, P. (2003). Modeling sequencing errors by combining Hidden Markov models. Proceedings of the European Conference on Computational Biology (ECCB 2003), ii103-ii112. doi:10.1093/bioinformatics/btg1067.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-89BC-1
Zusammenfassung
Among the largest resources for biological sequence data is the large amount of expressed sequence tags (ESTs) available in public and proprietary databases. ESTs provide information on transcripts but for technical reasons they often contain sequencing errors. Therefore, when analyzing EST sequences computationally, such errors must be taken into account. Earlier attempts to model error prone coding regions have shown good performance in detecting and predicting these while correcting sequencing errors using codon usage frequencies. In the research presented here, we improve the detection of translation start and stop sites by integrating a more complex mRNA model with codon usage bias based error correction into one hidden Markov model (HMM), thus generalizing this error correction approach to more complex HMMs. We show that our method maintains the performance in detecting coding sequences.