IDENTIFICATION OF SURFACE-EXPOSED YERSINIA-PESTIS PROTEINS BY RADIO-IODINATION AND BIOTINYLATION

被引:5
作者
ABATH, FGC [1 ]
ALMEIDA, AMP [1 ]
FERREIRA, LCS [1 ]
机构
[1] CTR PESQUISAS AGGEU,BR-50739 RECIFE,PE,BRAZIL
关键词
D O I
10.1099/00222615-37-6-420
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
When whole cells (stationary phase) of Yersinia pestis strain EV76 were radiolabelled with Iodogen and I-136, 16 major and 10 minor surface-exposed outer membrane proteins (OMPs) were identified. Labelling with N-hydroxysuccinimidyl 6-biotinylamino-hexanoate (biotin X-NHS) resulted in a complex protein profile detectable after blotting and developing with peroxidase-conjugated avidin. Y. pestis cell fractionation revealed that biotin X-NHS labelled not only OMPs but also proteins of inner cell compartments. Therefore, radiolabelling was the more reliable technique for identifying the OMPs of Y. pestis.
引用
收藏
页码:420 / 424
页数:5
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