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Bayesian analysis of mutational spectra.

Publication ,  Journal Article
Dunson, DB; Tindall, KR
Published in: Genetics
November 2000

Studies that examine both the frequency of gene mutation and the pattern or spectrum of mutational changes can be used to identify chemical mutagens and to explore the molecular mechanisms of mutagenesis. In this article, we propose a Bayesian hierarchical modeling approach for the analysis of mutational spectra. We assume that the total number of independent mutations and the numbers of mutations falling into different response categories, defined by location within a gene and/or type of alteration, follow binomial and multinomial sampling distributions, respectively. We use prior distributions to summarize past information about the overall mutation frequency and the probabilities corresponding to the different mutational categories. These priors can be chosen on the basis of data from previous studies using an approach that accounts for heterogeneity among studies. Inferences about the overall mutation frequency, the proportions of mutations in each response category, and the category-specific mutation frequencies can be based on posterior distributions, which incorporate past and current data on the mutant frequency and on DNA sequence alterations. Methods are described for comparing groups and for assessing dose-related trends. We illustrate our approach using data from the literature.

Duke Scholars

Published In

Genetics

DOI

EISSN

1943-2631

ISSN

0016-6731

Publication Date

November 2000

Volume

156

Issue

3

Start / End Page

1411 / 1418

Related Subject Headings

  • Probability
  • Mutation
  • Models, Statistical
  • Models, Genetic
  • Humans
  • Developmental Biology
  • DNA
  • Confidence Intervals
  • Bayes Theorem
  • Base Pairing
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Dunson, D. B., & Tindall, K. R. (2000). Bayesian analysis of mutational spectra. Genetics, 156(3), 1411–1418. https://doi.org/10.1093/genetics/156.3.1411
Dunson, D. B., and K. R. Tindall. “Bayesian analysis of mutational spectra.Genetics 156, no. 3 (November 2000): 1411–18. https://doi.org/10.1093/genetics/156.3.1411.
Dunson DB, Tindall KR. Bayesian analysis of mutational spectra. Genetics. 2000 Nov;156(3):1411–8.
Dunson, D. B., and K. R. Tindall. “Bayesian analysis of mutational spectra.Genetics, vol. 156, no. 3, Nov. 2000, pp. 1411–18. Epmc, doi:10.1093/genetics/156.3.1411.
Dunson DB, Tindall KR. Bayesian analysis of mutational spectra. Genetics. 2000 Nov;156(3):1411–1418.

Published In

Genetics

DOI

EISSN

1943-2631

ISSN

0016-6731

Publication Date

November 2000

Volume

156

Issue

3

Start / End Page

1411 / 1418

Related Subject Headings

  • Probability
  • Mutation
  • Models, Statistical
  • Models, Genetic
  • Humans
  • Developmental Biology
  • DNA
  • Confidence Intervals
  • Bayes Theorem
  • Base Pairing