Methods for evaluating exon-protein correspondences.

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TitleMethods for evaluating exon-protein correspondences.
Publication TypeJournal Article
Year of Publication1995
AuthorsStoltzfus, A, Spencer, DF, Doolittle, WF
JournalComput Appl Biosci
Volume11
Issue5
Pagination509-15
Date Published1995 Oct
ISSN0266-7061
KeywordsAlgorithms, Biological Evolution, Databases, Factual, Exons, Genetic Techniques, Introns, Models, Genetic, Molecular Structure, Proteins, Software, Triose-Phosphate Isomerase
Abstract

According to the exon theory of genes, protein-coding genes evolved originally by combinatorial assembly of mini-gene precursors of modern exons. If so, then exons should tend to encode discrete bits of protein structure, as first suggested by C.C.F. Blake. In order to assess the evidence for Blake's conjecture, we have developed methods for evaluating the significance of correspondences between split gene structure and protein structure, using computer programs for measuring observed correspondences and comparing them to random expectations. Initial results of applying these methods to data on ancient proteins have been presented elsewhere. Here we describe the algorithms in detail, and demonstrate their effectiveness in finding correlations in idealized test cases. The likely effects of deletion and putative displacement ('sliding') of introns on the ability to detect correlations are also examined.

Alternate JournalComput. Appl. Biosci.
PubMed ID8590174