This antibody is a horseradish peroxidase (HRP)-directly conjugated rabbit polyclonal antibody with high affinity for glutathione S-transferase (GST) derived from Schistosoma japonicum. The GST tag (~26 kDa) is a commonly used protein fusion tag that binds to immobilized glutathione, and is widely applied in recombinant protein affinity purification. The HRP direct conjugation makes this antibody particularly suitable for Western Blot (WB) detection, eliminating the need for secondary antibody incubation and enabling rapid, sensitive detection of GST fusion proteins while simplifying the workflow and reducing non-specific background.