Used in biomedical research to quantify levels of the transcription factor SP-1 in cell lysates or tissue extracts. This assay helps study gene regulation mechanisms, particularly in cancer, cardiovascular diseases, and metabolic disorders where SP-1 plays a role in controlling the expression of key genes. Researchers use this kit to evaluate the effects of drugs, signaling pathways, or genetic modifications on SP-1 protein levels, supporting mechanistic studies in molecular biology and pharmacology.