Diagnostic kit and application of coiled-coil domain containing protein 49 (CCDC49) in preparing gastric cancer early-stage diagnostic reagent

The invention relates to the field of the biological science, in particular to a diagnostic kit and an application of coiled-coil domain containing protein 49 (CCDC49) in preparing a gastric cancer early-stage diagnostic reagent. The diagnostic kit is used for diagnosing the early-stage gastric cancer. The diagnostic kit comprises an elisa plate, human protein CCDC49, standard serum, an enzyme labeled reagent, enzyme substrate solution, confining liquid, sample diluent, detergent liquid and termination liquid, wherein the human protein CCDC49 is wrapped on the elisa plate. Compared with the prior art, the diagnostic kit has advantages that 1, a commodity diagnostic kit which is sensitive, safe, reliable and easy to operate is provided, the immunoglobulin m (IgM) antibody for resisting the protein CCDC49 in the human serum can be qualitatively determined, and the early diagnosis of the gastric cancer can be assisted; and 2, the specificity of the provided serum biological labeled protein CCDC49 is 81 percent, the sensitivity is 82 percent, and the characteristics of high specificity and high sensitivity can be realized.