Janka Andreas, Becker Georg, Sonntag Anne-Katharina, Bielaszewska Martina, Dobrindt Ulrich, Karch Helge
Institut für Hygiene, Universitätsklinikum Münster, Robert-Koch Strasse 41, D-48149 Münster, Germany.
Appl Environ Microbiol. 2005 Aug;71(8):4875-8. doi: 10.1128/AEM.71.8.4875-4878.2005.
A mosaic genomic island comprising Shigella resistance locus (SRL) sequences flanked by segments of Escherichia coli O157:H7 strain EDL933 O islands 43, 81, and 82 was identified in sorbitol-fermenting (SF) enterohemorrhagic Escherichia coli (EHEC) O157:H(-) strain 493/89. This mosaic island is absent from strain EDL933. PCR targeting the SRL-related sequence is a useful tool to distinguish SF EHEC O157:H(-) from EHEC O157:H7.
在一株发酵山梨醇(SF)的肠出血性大肠杆菌(EHEC)O157:H(-)菌株493/89中,鉴定出一个镶嵌基因组岛,该岛包含志贺氏菌抗性位点(SRL)序列,两侧是大肠杆菌O157:H7菌株EDL933的O岛43、81和82片段。EDL933菌株中不存在这个镶嵌岛。靶向SRL相关序列的PCR是区分SF EHEC O157:H(-)和EHEC O157:H7的有用工具。