Studying human proteins is key to understanding the body, disease mechanisms, and developing new treatments : 

Researchers use a variety of tools and techniques to analyze proteins, including mass spectrometry, which identifies and quantifies proteins with high precision, and Western blotting, which detects specific proteins in complex mixtures. X-ray crystallography and cryo-electron microscopy reveal detailed 3D structures of proteins, helping scientists understand how they interact with other molecules. Techniques like ELISA and immunohistochemistry are widely used in diagnostics to detect disease-related proteins in blood or tissue samples. In addition, proteomics—the large-scale study of all proteins in a cell or organism has become a powerful field for discovering disease biomarkers and drug targets. These methods have broad applications, from tracking disease progression and identifying cancer mutations to developing personalized treatments and monitoring therapy response. By combining advanced tools with biological insight, the study of human proteins continues to drive innovation in medicine, biotechnology, and molecular research.