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Title: | Subspecies-specific distribution of intervening sequences in the Bacillus subtilis prophage ribonucleotide reductase genes | Authors: | Stanković, Slaviša Soldo, Blazenka Beric-Bjedov, Tanja Knežević Vukčević, Jelena Simic, Draga Lazarevic, Vladimir |
Keywords: | Bacillus subtilis subsp. spizizenii;Ribonucleotide reductase;introns;Group I;Bacillus subtilis subsp. subtilis;Prophage;Intron distribution | Issue Date: | 19-Jan-2007 | Journal: | Systematic and Applied Microbiology | Abstract: | A collection of 212 gram-positive bacilli isolated from natural habitats was screened for the presence of intervening sequences (introns and intein-coding sequences) in the SPβ prophage-related ribonucleotide reductase genes bnrdE and bnrdF. Three novel configurations were identified on the basis of the presence of (i) intervening sequences in bnrdE and bnrdF, and (ii) an ORF in the bnrdE-bnrdF spacer. Analysis of the cell wall genetic determinants as well as of the incorporation of radio-labelled glycerol into cell wall allowed newly and previously identified B. subtilis strains with different configurations of bnrdE/bnrdF intervening sequences to be assigned to one of two subspecies. Strains apparently belonging to the subsp. subtilis contain three intervening sequences many of which are associated with the putative homing endonuclease activity. Strains of the subsp. spizizenii contain only one or two ORF-less group I introns. Introns occupying bnrdF are confined to the subspecies subtilis. © 2006 Elsevier GmbH. All rights reserved. |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/1450 | ISSN: | 0723-2020 | DOI: | 10.1016/j.syapm.2006.02.007 |
Appears in Collections: | Journal Article |
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