scispace - formally typeset
Open AccessJournal ArticleDOI

BLAST+: architecture and applications.

TLDR
The new BLAST command-line applications, compared to the current BLAST tools, demonstrate substantial speed improvements for long queries as well as chromosome length database sequences.
Abstract
Sequence similarity searching is a very important bioinformatics task. While Basic Local Alignment Search Tool (BLAST) outperforms exact methods through its use of heuristics, the speed of the current BLAST software is suboptimal for very long queries or database sequences. There are also some shortcomings in the user-interface of the current command-line applications. We describe features and improvements of rewritten BLAST software and introduce new command-line applications. Long query sequences are broken into chunks for processing, in some cases leading to dramatically shorter run times. For long database sequences, it is possible to retrieve only the relevant parts of the sequence, reducing CPU time and memory usage for searches of short queries against databases of contigs or chromosomes. The program can now retrieve masking information for database sequences from the BLAST databases. A new modular software library can now access subject sequence data from arbitrary data sources. We introduce several new features, including strategy files that allow a user to save and reuse their favorite set of options. The strategy files can be uploaded to and downloaded from the NCBI BLAST web site. The new BLAST command-line applications, compared to the current BLAST tools, demonstrate substantial speed improvements for long queries as well as chromosome length database sequences. We have also improved the user interface of the command-line applications.

read more

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

AlgPred 2.0: an improved method for predicting allergenic proteins and mapping of IgE epitopes.

TL;DR: The ensemble approach has been used for predicting allergenic protein by combining prediction scores of different approaches and the best model achieved maximum performance in terms of area under receiver operating characteristic curve 0.98 with Matthew's correlation coefficient 0.85 on the validation dataset.
Journal ArticleDOI

Long-term colonisation with donor bacteriophages following successful faecal microbial transplantation

TL;DR: Investigating viral transfer following FMT revealed that engraftment of individual bacteriophages was dependent on specific donor-recipient pairings, and multiple recipients from a single donor displayed highly individualised virus colonisation patterns.
Journal ArticleDOI

Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution.

TL;DR: It is demonstrated that the epigenetic effects of euchromatic TEs, and host genetic factors modulating such effects, play a critical role in the evolution of TEs both within and between species.
Journal ArticleDOI

De novo assembly of a Chinese soybean genome

TL;DR: The de novo assembly and sequence analysis of a Chinese soybean genome for “Zhonghuang 13” by a combination of SMRT, Hi–C and optical mapping data is reported, finding more than 250,000 structure variations.

Physiology and evolution of nitrate acquisition in Prochlorococcus

TL;DR: In this article, the authors introduce three Prochlorococcus strains capable of growth on nitrate and analyze their physiology and genome architecture, showing that the growth of high-light (HL) adapted strains on Nitrate is ∼17% slower than their growth on ammonium and that genes for nitrate assimilation have been gained multiple times during the evolution of this group, and can be found in at least three lineages.
References
More filters
Journal ArticleDOI

Basic Local Alignment Search Tool

TL;DR: A new approach to rapid sequence comparison, basic local alignment search tool (BLAST), directly approximates alignments that optimize a measure of local similarity, the maximal segment pair (MSP) score.
Journal ArticleDOI

Gapped BLAST and PSI-BLAST: a new generation of protein database search programs.

TL;DR: A new criterion for triggering the extension of word hits, combined with a new heuristic for generating gapped alignments, yields a gapped BLAST program that runs at approximately three times the speed of the original.
Journal ArticleDOI

BLAT—The BLAST-Like Alignment Tool

TL;DR: How BLAT was optimized is described, which is more accurate and 500 times faster than popular existing tools for mRNA/DNA alignments and 50 times faster for protein alignments at sensitivity settings typically used when comparing vertebrate sequences.
Journal ArticleDOI

Initial sequencing and comparative analysis of the mouse genome.

Robert H. Waterston, +222 more
- 05 Dec 2002 - 
TL;DR: The results of an international collaboration to produce a high-quality draft sequence of the mouse genome are reported and an initial comparative analysis of the Mouse and human genomes is presented, describing some of the insights that can be gleaned from the two sequences.
Journal ArticleDOI

A greedy algorithm for aligning DNA sequences.

TL;DR: A new greedy alignment algorithm is introduced with particularly good performance and it is shown that it computes the same alignment as does a certain dynamic programming algorithm, while executing over 10 times faster on appropriate data.
Related Papers (5)
Trending Questions (1)
Apakah fungsi dari Basic Local Alignment Search Tool?

The function of the Basic Local Alignment Search Tool (BLAST) is to perform sequence similarity searches by comparing a query sequence against a sequence database to find matches.