Porcine circovirus type 3 epitope polypeptide and application thereof

The invention discloses porcine circovirus type 3 epitope polypeptide and application thereof. The epitope polypeptide is one of or any combination of two or more of a polypeptide represented in the first sequence in the Sequence Listing, a polypeptide represented in the second sequence in the Sequence Listing or a polypeptide represented in the third sequence in the Sequence Listing. The epitopepolypeptide can be used for indirect method ELISA, chemically synthesized antigen peptide is used for coating an enzyme labeling plate, the use amount of antigen is low, the sensitivity and specificity are high, whether or not a porcine circovirus type 3 antibody exists can be effectively detected, the sensitivity is high, the specificity is good, the operation is convenient, and the market prospect is good. 本发明公开了猪圆环病毒3型抗原表位多肽及其应用。该抗原表位多肽为序列表中序列1所示的多肽、序列表中序列2所示的多肽或序列表中序列3所示的多肽中的种或两种以上的任意组合。本发明的抗原表位多肽可用于间接法ELISA，使用化学合成抗原肽包被酶标板，抗原用量少、灵敏性和特异性高，可以高效地检测是否存在猪圆环病毒3型抗体，具有敏感性高、特异性好、且操作便捷，具有良好的市场前景。