Significance of gapped sequence alignments.
Significance of gapped sequence alignments.
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DOI:
10.1089/cmb.2008.0125
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发表时间:
2008-11
期刊:
影响因子:
--
通讯作者:
Newberg LA
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文献类型:
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作者:
Newberg LA
Measurement of the statistical significance of extreme sequence alignment scores is key to many important applications, but it is difficult. To precisely approximate alignment score significance, we draw random samples directly from a well chosen, importance-sampling probability distribution. We apply our technique to pairwise local sequence alignment of nucleic acid and amino acid sequences of length up to 1000. For instance, using a BLOSUM62 scoring system for local sequence alignment, we compute that the p-value of a score of 6000 for the alignment of two sequences of length 1000 is (3.4 ± 0.3) × 10−1314. Further, we show that the extreme value significance statistic for the local alignment model that we examine does not follow a Gumbel distribution. A web server for this application is available at http://bayesweb.wadsworth.org/alignmentSignificanceV1/.
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影响因子:
--
作者:
Schuster-Bockler, Benjamin;Bateman, Alex
通讯作者:
Bateman, Alex
DOI:
10.1186/1748-7188-2-9
发表时间:
2007-07-11
期刊:
Algorithms for molecular biology : AMB
影响因子:
--
作者:
Wolfsheimer S;Burghardt B;Hartmann AK
通讯作者:
Hartmann AK
影响因子:
2.4
作者:
Hartmann, AK
通讯作者:
Hartmann, AK
DOI:
10.1073/pnas.87.6.2264
发表时间:
1990-03-01
影响因子:
11.1
作者:
KARLIN, S;ALTSCHUL, SF
通讯作者:
ALTSCHUL, SF
影响因子:
4.4
作者:
PEARSON, WR
通讯作者:
PEARSON, WR