FIELD: genetic engineering of proteins, medicine, oncology, pharmacy. SUBSTANCE: invention relates to novel anti-EGFR antibodies and their single-chain Fv-fragments that can be prepared from library phage-antibody constructed from mammal immunized cells, preferably, from mouse. Two single-chain Fv isolated from library phage-antibody are treated by methods of genetic engineering to create molecules of partially humanized complete antibody. These chimeric anti-EGFR antibodies have constant regions of human immunoglobulins and can be used as well as their single-chain Fv as agents for diagnosis and treatment of humans with tumors. EFFECT: new antibodies indicated above, valuable medicinal properties. 9 cl, 5 tbl
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