PROBLEM TO BE SOLVED: To provide tumor specific molecules to aid in better diagnosis and treatment of human and animal cancer.SOLUTION: The present invention relates to novel antibodies, particularly antibodies directed against deletion mutants of epidermal growth factor receptor and particularly to the type III deletion mutant, EGFRvIII.SELECTED DRAWING: None【課題】ヒトおよび動物の癌のより良い診断および治療を助長するための腫瘍特異的分子を得ることである。【解決手段】本発明は新規な抗体、特に上皮成長因子受容体の欠失型変異体、および特にタイプIIIの欠失型変異体、EGFRvIIIを対象とする抗体に関する。【選択図】なし