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Paper Information

Journal:   JOURNAL OF ADVANCES IN COMPUTER RESEARCH   MAY 2014 , Volume 5 , Number 2 (16); Page(s) 65 To 69.
 
Paper: 

IMPROVED ALIGNMENT OF BISULFITE SEQUENCING DATA USING CPG ISLANDS

 
 
Author(s):  BARJASTE NADIA*, NADIMI REZA, ALIPOUR MAJID
 
* DEPARTMENT OF COMPUTER ENGINEERING, ISLAMIC AZAD UNIVERSITY, BABOL BRANCH, BABOL, IRAN
 
Abstract: 

DNA methylation is an important biological process involving in human disease such as cancer Insomia and Diabetes. Bisulfite sequencing (BS-Seq) with next-generation technology is an accurate method for measuring DNA methylation. BS-seq data analysis is a considerable way to recognize methylated cytosines and several tools have been developed to analyze BS-Seq such as BS-Seeker, B-SOLANA, BRAT, BSMAP and etc. In this paper, we propose a novel idea to get more efficiency in the sequencing process, This idea will improve the rate of accuracy in the BSOLANA alignment tool using a new method in the preprocessing step. Our method is based on modification in some regions of DNA strand named CpG islands. CpG islands are significant regions in DNA strand which frequency of methylated cytosines is less than other CpG contexts. We compared our method with previous methods in the preprocessing of the original BSOLANA tool using on HG19 reads. The comparison shows that the new method provides more ability to align read sequences in the BSOLANA.

 
Keyword(s): BISULFITE SEQUENCING, DNA METHYLATION, ALIGNMENT TOOLS
 
References: 
 
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