What is the primary focus of proteomics?

Proteomics primarily focuses on the study of proteins and their interactions. This field encompasses a wide range of activities, including the identification, quantification, and characterization of proteins, as well as understanding how they interact with one another and with other molecules within biological systems. Proteins play critical roles in virtually every biological process, influencing functions such as metabolism, signaling, immune responses, and structural integrity of cells. By studying proteins, researchers can gain insights into how diseases develop, how bodies respond to various treatments, and how biological systems function at a molecular level.

While the analysis of DNA sequences relates to genomics, which examines all genes and their functions, and the examination of cellular processes ties into cell biology, proteomics specifically narrows its focus to proteins. The development of new drugs can sometimes intersect with proteomics when identifying protein targets for therapeutic intervention, but it is not the primary focus of the field. Hence, the correct choice emphasizes the fundamental aspect of understanding proteins, their functions, and interactions, which are essential for advancing knowledge in biology and medicine.