Design of cocktail peptide vaccine against Cytomegalovirus infection
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Updated: Mar 19, 2026
Homogeneous Glycoconjugate Produced by Combined Unnatural Amino Acid Incorporation and Click-Chemistry for Vaccine Purposes
Published on: December 19, 2020
Samira Tabaei1, Baratali Mashkani2, Arezoo Esmaili1
1Department of Biology, Damghan Branch, Islamic Azad University, Damghan, Iran.
Objectives:
Human Cytomegalovirus (HCMV) remains a major morbidity and mortality cause in immuno suppressed patients. Therefore, significant effort has been made towards the development of a vaccine. In this study, the expression of the pp65 and gB fusion peptides and Fc domain of mouse IgG2a as a novel delivery system for selective uptake of antigens by antigen-presenting cells (APCs) in Pichia pastoris yeast system were studied.
Materials And Method:
In this study, four immune dominant sequences in pp65 protein and 3 immuno dominant sequences in gB protein were selected according to literature review. Peptide linker -GGGGS- was used for construction of fusion peptide. This fusion peptide was cloned in the pPICZαA expression vector and transfected into P. pastoris host cells.
Results:
Dot blot and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) techniques showed that a high level of pp65-gB-Fc fusion peptide was expressed.
Conclusion:
This CMV pp65-gB-Fc fusion peptide could be a promising candidate for the development of a novel peptide vaccine.
