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Biological activities of synthetic peptides of the sequence of human interferon-alpha
E Eichmann1, V A Majarov, A T Kozhich
1Central Institute of Molecular Biology, Academy of Sciences of the GDR, Berlin-Buch.
Abstract:
Theoretical and experimental data were obtained indicating a possible role of the amino acid sequence 69-80 of HuIFN-alpha for antiviral activity of interferon. In this paper, synthetic peptides (penta-, octa- and dodecapeptides), representing the sequence region of positions 69-80 of the primary structure of HuIFN-alpha-2 were investigated with regard to their ability to inhibit the cytopathic effect of VSV on MDBK cells and on embryonic human fibroblasts. The peptides themselves exhibit only a very weak antiviral activity; however, it was found that these peptides even increase the antiviral activity of HuIFN-alpha-2.