FIELD: chemistry.
SUBSTANCE: claimed invention relates to field of biotechnology and immunology. Claimed is antibody, specifically binding with form A FcγRIII (CD16) (FcγRIIIA, CD16A) and not-binding specifically with form B (FcγRIIIB, CD16B), its antigen-binding fragment and multi-specific antibody, which includes antigen-binding fragment of antibody by invention. Compositions, which contain antibody by invention or its antigen-binding fragment, and their application in treatment of autoimmune, inflammatory, inflectious diseases, allergy and cancer, as well as set for detection of FcγRIIIA are described. Polynucleotides, vectors and host cells and method of obtaining antibody by invention or its antigen-binding fragment are described.
EFFECT: claimed invention provides novel antibodies to FcγRIIIA and, in that way, can find further application in therapy of FcγRIIIA-mediated diseases.
51 cl, 24 ex, 8 dwg, 5 tbl
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