PROBLEM TO BE SOLVED: To provide a useful anti-influenza virus composition.SOLUTION: The anti-influenza virus composition includes a dimer of an antibody light chain comprised of an amino acid sequence where one or several amino acids outside a hypervariable region are replaced, added or deleted in an amino acid sequence where a variable region is indicated as (A) a sequence identification number of 3 or 6 or an amino acid sequence where it is indicated as (B) a sequence identification number of 3 or 6.COPYRIGHT: (C)2012,JPO&INPIT【課題】有用な抗インフルエンザウイルス組成物を提供すること。【解決手段】本発明の抗インフルエンザウイルス組成物は、可変領域が(A)配列番号3もしくは6に示されるアミノ酸配列;または(B)配列番号3もしくは6に示されるアミノ酸配列において、超可変領域外の1個もしくは数個のアミノ酸が置換、付加または欠失された、アミノ酸配列からなる抗体軽鎖の二量体を含んでいる。【選択図】なし
