A poor man's BLASTX--high-throughput metagenomic protein database search using PAUDA.

A poor man's BLASTX--high-throughput metagenomic protein database search using PAUDA.
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DOI:
10.1093/bioinformatics/btt254
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发表时间:
2014-01-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
通讯作者:
Xie C
Xie C
中科院分区:
其他
文献类型:
--
作者:
Huson DH;Xie C

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总结:在宏基因组学的背景下,我们引入了一种新的方法,蛋白质数据库搜索称为PAUDA,它运行速度比BLASTX快10000倍,同时实现了约三分之一的KEGG直向组的读段分配率,并产生与BLASTX获得的高度相关的基因和分类单元丰度谱。PAUDA需要<80个CPU小时来分析来自永久冻土的2.46亿个Illumina DNA读数的数据集,据报道,之前的BLASTX分析(对1.76亿个读数的子集)需要80万个CPU小时,导致通过功能谱对样品进行相同的聚类。可用性:PAUDA可从http://ab.inf.uni-tuebingen.de/software/pauda免费获得。补充方法的详细信息也可从本网站获得。联系人:丹尼尔. uni-tuebingen.de或xiechao@bic.nus.edu.sg
Summary: In the context of metagenomics, we introduce a new approach to protein database search called PAUDA, which runs ∼10 000 times faster than BLASTX, while achieving about one-third of the assignment rate of reads to KEGG orthology groups, and producing gene and taxon abundance profiles that are highly correlated to those obtained with BLASTX. PAUDA requires <80 CPU hours to analyze a dataset of 246 million Illumina DNA reads from permafrost soil for which a previous BLASTX analysis (on a subset of 176 million reads) reportedly required 800 000 CPU hours, leading to the same clustering of samples by functional profiles. Availability: PAUDA is freely available from: http://ab.inf.uni-tuebingen.de/software/pauda. Also supplementary method details are available from this website. Contact: daniel.huson@uni-tuebingen.de or xiechao@bic.nus.edu.sg
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