Exact calculation of distributions on integers, with application to sequence alignment.
Exact calculation of distributions on integers, with application to sequence alignment.
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DOI:
10.1089/cmb.2008.0137
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发表时间:
2009-01
期刊:
影响因子:
--
通讯作者:
Lawrence CE
中科院分区:
文献类型:
--
作者:
Newberg LA;Lawrence CE
Computational biology is replete with high-dimensional discrete prediction and inference problems. Dynamic programming recursions can be applied to several of the most important of these, including sequence alignment, RNA secondary-structure prediction, phylogenetic inference, and motif finding. In these problems, attention is frequently focused on some scalar quantity of interest, a score, such as an alignment score or the free energy of an RNA secondary structure. In many cases, score is naturally defined on integers, such as a count of the number of pairing differences between two sequence alignments, or else an integer score has been adopted for computational reasons, such as in the test of significance of motif scores. The probability distribution of the score under an appropriate probabilistic model is of interest, such as in tests of significance of motif scores, or in calculation of Bayesian confidence limits around an alignment. Here we present three algorithms for calculating the exact distribution of a score of this type; then, in the context of pairwise local sequence alignments, we apply the approach so as to find the alignment score distribution and Bayesian confidence limits.
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影响因子:
64.8
作者:
Clark, Andrew G.;Eisen, Michael B.;MacCallum, Iain
通讯作者:
MacCallum, Iain
DOI:
10.1093/protein/8.10.999
发表时间:
1995-10-01
期刊:
PROTEIN ENGINEERING
影响因子:
--
作者:
Miyazawa, S
通讯作者:
Miyazawa, S
DOI:
10.1089/cmb.2008.0125
发表时间:
2008-11
期刊:
Journal of computational biology : a journal of computational molecular cell biology
影响因子:
--
作者:
Newberg LA
通讯作者:
Newberg LA
影响因子:
1
作者:
Carmack, C. Steven;McCue, Lee Ann;Lawrence, Charles E.
通讯作者:
Lawrence, Charles E.
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