Keywords
immunoinformatics
antigenic proteins
epitope prediction
molecular docking
How to Cite
Abstract
Malaria, a life-threatening disease prevalent in tropical regions, primarily affects infants, children under five, pregnant women, travelers, and individuals with HIV/AIDS. This study utilized an immunoinformatics approach to design a peptide-based malaria vaccine targeting antigenic proteins, including Apical Membrane Antigen 1, Knob-Associated Histidine-Rich Protein, Merozoite Surface Protein 1, and Sporozoite Surface Protein 2. Antigenic protein sequences were screened for antigenicity, allergenicity, toxicity, and immune responses involving CTLs, B-cells, and HTLs. Selected epitopes were linked with appropriate linkers and an adjuvant to enhance immunogenicity, forming a vaccine construct. The construction, comprising 1473 amino acids, exhibited a molecular weight of 15.21 kDa, a theoretical pI of 8.94, an aliphatic index of 60.01, and an instability index of 31.66, indicating stability. It was hydrophilic (GRAVY: –0.385) with favorable half-lives in mammalian, yeast, and E. coli systems. Docking studies showed strong binding affinity to human TLR2 and TLR4. In silico cloning indicated a CAI value of 0.92 and a GC content of 59.31%. Further studies are needed to validate its efficacy and safety.
References
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