Characterization of a novel integrative element, ICESt1, in the lactic acid bacterium Streptococcus thermophilus |
| |
Authors: | Burrus V Roussel Y Decaris B Guédon G |
| |
Institution: | Laboratoire de Génétique et Microbiologie, INRA UA952, Faculté des Sciences, Université Henri Poincaré (Nancy 1), 54506 Vandoeuvre-lès-Nancy, France. |
| |
Abstract: | The 35.5-kb ICESt1 element of Streptococcus thermophilus CNRZ368 is bordered by a 27-bp repeat and integrated into the 3' end of a gene encoding a putative fructose-1,6-biphosphate aldolase. This element encodes site-specific integrase and excisionase enzymes related to those of conjugative transposons Tn5276 and Tn5252. The integrase was found to be involved in a site-specific excision of a circular form. ICESt1 also encodes putative conjugative transfer proteins related to those of the conjugative transposon Tn916. Therefore, ICESt1 could be or could be derived from an integrative conjugative element. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|