Protein detection refers to the methods used to identify and quantify proteins in a sample. This is crucial in various fields, including biochemistry, molecular biology, and clinical diagnostics. Techniques such as Western blotting, enzyme-linked immunosorbent assay (ELISA), and mass spectrometry are commonly employed to detect specific proteins based on their unique properties. These methods often rely on antibodies that bind to target proteins, allowing for their visualization or measurement. Accurate protein detection is essential for understanding biological processes, diagnosing diseases, and developing new therapies, making it a fundamental aspect of scientific research and medical applications.