Salmonella enterica serovar Typhi (S. Typhi) is the causative agent of typhoid fever, a systemic infection that affects millions of people worldwide annually. One of the key virulence factors of S. Typhi is Hemolysin E (HlyE), a pore-forming toxin that plays a significant role in the pathogenesis of the disease .
Hemolysin E is an immunogenic protein that contributes to the cytotoxicity and invasion of epithelial cells. It is involved in the bacterial growth within human macrophages and affects the overall virulence of S. Typhi . The protein forms pores in the host cell membranes, leading to cell lysis and aiding in the spread of the bacteria.
Recombinant HlyE refers to the HlyE protein that has been expressed and purified using recombinant DNA technology. This involves cloning the hlyE gene from S. Typhi into a suitable expression vector, such as pET28a, and transforming it into a host organism like Escherichia coli (E. coli) for protein production . The recombinant HlyE protein can then be purified and used for various research and diagnostic purposes.