[Recombinant full-size human antibody to Ebola virus].

Autor: Shingarova LN, Tikunova NV, Iun TE, Chepurnov AA, Aliev TK, Batanova TA, Boldyreva EF, Nekrasova OV, Toporova VA, Panina AA, Kirpichnikov MP, Sandakhchiev LS
Jazyk: ruština
Zdroj: Bioorganicheskaia khimiia [Bioorg Khim] 2007 Nov-Dec; Vol. 33 (6), pp. 598-605.
DOI: 10.1134/s1068162007060040
Abstrakt: A full-size human antibody to Ebola virus was constructed by joining genes encoding the constant domains of the heavy and light chains of human immunoglobulin with the corresponding DNA fragments encoding variable domains of the single-chain antibody 4D1 specific to Ebola virus, which was chosen from a combinatorial phage display library of single-strand human antibodies. Two expression plasmids. pCH1 and pCL1, containing the artificial genes encoding the light and heavy chains of human immunoglobulin, respectively, were constructed. Their cotransfection into the human embryonic kidney cell line HEK293T provided the production of a full-size recombinant human antibody. The affinity constant for the antibody was estimated by solid-phase enzyme-linked immunoassay to be 7.7 x 10(7) +/- 1.5 x 10(7) M(-1). Like the parent single-chain antibody 4DI, the resulting antibody bound the nucleoprotein of Ebola virus and did not interact with the proteins of Marburg virus.
Databáze: MEDLINE