FIELD: biotechnology.
SUBSTANCE: present invention relates to biotechnology, namely to recombinant modifications of group 6 Poaceae (bluegrass) allergens, and can be used in medicine for preventing or treating type 1 allergies, in initiation of which group 6 bluegrass allergens are involved. Recombinant allergen Phl p 6 is obtained, in which prolines, corresponding in linearized form to prolines in positions 29, 30, 57 and 79 of amino acid sequence of wild type protein Phl p 6 in compliance with SEQ ID NO: 2, are mutated separately or in combination by point mutations, selected from deletions and substitutions of amino acids.
EFFECT: present invention enables to obtain recombinant allergen Phl p 6 with low IgE reactivity, compared to existing non-mutated allergens, and with substantially preserved T-lymphocytes reactivity at the same time.
12 cl, 20 dwg, 2 tbl, 3 ex
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