Cebula T A, Payne W L, Feng P
Center for Food Safety and Applied Nutrition, Food and Drug Administration, Washington, D.C. 20204.
J Clin Microbiol. 1995 Jan;33(1):248-50. doi: 10.1128/jcm.33.1.248-250.1995.
Mismatch amplification mutation assay primers, specific for a unique base substitution in uidA of Escherichia coli O157:H7, was coupled with primers for the Shiga-like toxin I (SLT-I) and SLT-II genes in a multiplex PCR assay. Analysis of 108 bacteria showed that all Escherichia coli serotype O157:H7 strains were identified simultaneously with the SLT types encoded by these strains.
错配扩增突变分析引物,对大肠杆菌O157:H7的uidA中独特的碱基取代具有特异性,在多重PCR分析中与志贺样毒素I(SLT-I)和SLT-II基因的引物相结合。对108株细菌的分析表明,所有大肠杆菌O157:H7血清型菌株均与这些菌株编码的SLT类型同时被鉴定出来。