A new algorithm for cluster analysis of genomic methylation: the Helicobacter pylori case
Author(s) -
Filipa F. Vale,
Pedro Encarnação,
Jorge M. B. Vítor
Publication year - 2007
Publication title -
bioinformatics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.599
H-Index - 390
eISSN - 1367-4811
pISSN - 1367-4803
DOI - 10.1093/bioinformatics/btm621
Subject(s) - methyltransferase , dendrogram , methylation , restriction enzyme , cluster analysis , genome , helicobacter pylori , biology , computational biology , dna methylation , genetics , cluster (spacecraft) , computer science , dna , gene , artificial intelligence , medicine , computer network , genetic diversity , population , gene expression , environmental health
The genomic methylation analysis is useful to type bacteria that have a high number of expressed type II methyltransferases. Methyltransferases are usually committed to Restriction and Modification (R-M) systems, in which the restriction endonuclease imposes high pressure on the expression of the cognate methyltransferase that hinder R-M system loss. Conventional cluster methods do not reflect this tendency. An algorithm was developed for dendrogram construction reflecting the propensity for conservation of R-M Type II systems.
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