To provide a new antigen of allergy to egg, a diagnosis method and a diagnosis kit of allergy to egg, a pharmaceutical composition including the antigen, egg from which the antigen is removed or reduced, processed egg, bird which lays an egg or which is born from the egg, a production method of processed egg from which the antigen is removed or reduced, and a tester for determining presence of the egg antigen in an object.SOLUTION: There are provided an antigen in which a raw egg is divided into an egg yolk and an egg white, an egg protein included in the egg yolk and egg white is subjected to two-dimensional electrophoresis in a specific condition, the antigen being identified as a spot which couples to an IgE antibody of a patient who is an allergy patient to the egg and who is diagnosed to suffer from food dependent motion induction anaphylaxis, and an allergy diagnosis kit using the same antigen.SELECTED DRAWING: None【課題】卵に対するアレルギーの新規抗原、卵に対するアレルギーの診断方法および診断キット、当該抗原を含む医薬組成物、当該抗原が除去又は低減された卵、卵加工品または当該卵を産む若しくは当該卵から生まれた鳥、当該抗原が除去又は低減された卵加工品の製造方法、ならびに対象物における卵抗原の有無を判定するためのテスターの提供。【解決手段】生の鶏卵を卵黄と卵白とに分け、それぞれに含まれる卵タンパク質を特定の条件で２次元電気泳動に供し、卵に対するアレルギー患者であって食物依存性運動誘発アナフィラキシーと診断された患者のＩｇＥ抗体に特異的に結合するスポットとして特定された抗原、該抗原を用いたアレルギー診断キット。【選択図】なし
