Cloning, expression, and purification of the hemolysin/cytolysin (HlyE antigen) from Salmonella enterica serovar Typhi: potential application for immunoassay development

Ong EB 1 , Anthony AA , Ismail A , Ismail A , Lim TS

Affiliations 

  • 1 Institute for Research in Molecular Medicine, Universiti Sains Malaysia, 11800 Penang, Malaysia
Diagn Microbiol Infect Dis, 2013 Sep;77(1):87-9.
PMID: 23790417 DOI: 10.1016/j.diagmicrobio.2013.05.010

Abstract

The hemolysin (HlyE) protein of Salmonella enterica serovar Typhi was reported to be antigenic. This work describes the cloning, expression, and purification of a hexahistidine-tagged HlyE protein under native conditions. Immunoblot analysis and a competitive enzyme-linked immunosorbent assay using sera from typhoid patients showed the presence of HlyE-specific antibodies in circulation.

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