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Nucleic Acid Structure01:25

Nucleic Acid Structure

The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms  a 5′ to 3′ phosphodiester linkage.
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Related Experiment Video

Updated: Jun 18, 2026

An Integrated Approach for Microprotein Identification and Sequence Analysis
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An Integrated Approach for Microprotein Identification and Sequence Analysis

Published on: July 12, 2022

BOAT: Basic Oligonucleotide Alignment Tool.

Shu-Qi Zhao1, Jun Wang, Li Zhang

  • 1Center for Bioinformatics, National Laboratory of Protein Engineering and Plant Genetic Engineering, College of Life Sciences, Peking University, Beijing 100871, PR China. zhaosq@mail.cbi.pku.edu.cn

BMC Genomics
|December 5, 2009
PubMed
Summary
This summary is machine-generated.

Basic Oligonucleotide Alignment Tool (BOAT) accurately maps next-generation sequencing reads, even with multiple substitutions and indels. This efficient algorithm improves sensitivity and reduces memory usage for functional genomics studies.

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Proofreading and DNA Repair Assay Using Single Nucleotide Extension and MALDI-TOF Mass Spectrometry Analysis

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Area of Science:

  • Genomics
  • Bioinformatics
  • Computational Biology

Background:

  • Next-generation sequencing (NGS) generates millions of reads crucial for biological research.
  • Efficient read mapping to reference genomes is a critical bioinformatics task.
  • Existing tools struggle with simultaneous substitutions and indels.

Purpose of the Study:

  • To develop an accurate and efficient algorithm for mapping NGS reads.
  • To address limitations of current read mapping tools, especially with complex genomic variations.

Main Methods:

  • Introduced Basic Oligonucleotide Alignment Tool (BOAT), a novel algorithm.
  • BOAT handles multiple substitutions and indels simultaneously.
  • Implemented a "3'-end Trimming Mode" for low-quality reads and local alignment.

Main Results:

  • BOAT accurately and efficiently maps sequencing reads to reference genomes.
  • The algorithm successfully handles simultaneous substitutions and indels.
  • BOAT demonstrates improved sensitivity and lower memory requirements compared to existing tools.

Conclusions:

  • BOAT is a valuable tool for functional genomics, capable of mapping large volumes of short reads.
  • The algorithm offers enhanced sensitivity and reduced memory footprint.
  • Source code and binaries are publicly available under GPL license.