| CPC G01N 33/6854 (2013.01) [C07K 14/001 (2013.01); G01N 33/60 (2013.01)] | 2 Claims |

|
1. A detection kit for an anti-butyrophilin 3A1 antibody, comprising:
a radioactive antigen protein AR12A, wherein the radioactive antigen protein AR12A is obtained by labelling the antigen protein AR12A with S35-methionine, and an amino acid sequence of the antigen protein AR12A comprises an amino acid sequence of a protein scaffold and an amino acid sequence of the BTN3A1;
| ||||||||||||||||||||||||||||||
the amino acid sequence of the antigen protein AR12A is as follows:
| ||||||||||||||||||||||||||||||