Difference between revisions of "Part:BBa K3992004"

Revision as of 04:31, 20 October 2021

Vp7-GS linker-LTB

Vp7-GS linker-LTB

Profile

Name: PHT43- VP7-LTB

Base Pairs: 9339bp

Origin: E. coli , synthetic

====Properties: Preparation of rotavirus oral vaccine

Usage and Biology

Otavirus (RV) is the main viral pathogen that causes severe acute diarrhea in infants and young children. Almost all children under five weeks of age have been infected with the virus, causing nearly 130,000 deaths worldwide each year. Social conditions in developing countries have led to reduced effectiveness of oral rehydration solutions and vaccines, as well as a lack of approved antiviral drugs, making rotavirus infection a global health problem. RV structural protein vp7, on the outermost layer of virus particles, is the first choice for the development of genetic engineering vaccines. We are trying to develop a new oral vaccine for hand, foot and mouth disease due to its advertisement for infants and young children. The B subunit LTB in the heat-labile enterotoxin (LT) of Escherichia coli heat-labile enterotoxin (LT) has strong immunogenicity and adjuvant activity, and will not cause harm to the human body. LTB and a variety of non-related proteins and their non-protein antigens can increase the mucosal IgA and humoral immune IgG response levels of the antigen through different immunization pathways. Currently, there are three main types of vaccines, including inactivated vaccines/attenuated vaccines, mRNA vaccines/DNA vaccines, and neutralizing antibody/non-neutralizing antibody vaccines. Human vaccination methods include injection (hepatitis B vaccine, BCG vaccine, flu vaccine, etc.) and oral administration (poliomyelitis, cholera vaccine, and rotavirus vaccine).

Construct design

VP7-LTB had been linked by P2A linker. VP7-LTB is inserted into plasmid (Figure 1). The sequence of pHT43-VP7-LBT and pET28a-VP7-LBT are shown in Figure 2.

Sequence and Features