Gamma-interferon recombinant antigen and application thereof

The invention relates to the field of biological medicine and in vitro diagnosis, in particular to a gamma-interferon recombinant antigen and application thereof. The gamma-interferon recombinant antigen is obtained through protein binding and antigen epitope screening, and has an amino acid sequence as shown in SEQ ID NO: 11, and experimental results show that the gamma-interferon recombinant antigen with the amino acid as shown in SEQ ID NO: 11 is high in expression quantity, strong in antigenicity and high in stability, can be used for sufficiently exposing dominant epitopes of the gamma-interferon recombinant antigen in animal immunization, and can be applied to animal immunization. The immunocompetence is relatively high. 本发明涉及生物医药和体外诊断领域，具体涉及γ-干扰素重组抗原及其应用。本发明通过蛋白结合和抗原表位筛选得到γ-干扰素重组抗原，其具有如SEQ ID NO:11所示的氨基酸序列，实验结果表明，具有如SEQ ID NO:11所示的氨基酸的γ-干扰素重组抗原表达量高、抗原性强、稳定性高，用于动物免疫中可充分暴露其优势表位，具有较高的免疫活性。