Proteomics is a multidisciplinary research. Proteins are an important part of living organisms, which have many functions. A proteinome is a whole set of proteins that are produced or modified by the body or system. Proteomics enabled identification of ever-increasing protein levels. This varies with time or with different requirements, or pressures, produced by the cell or the organism. Proteomics is a compilation that has benefited greatly from the genetic data of various genome projects, including the Human Genome Project. It also includes experiments on proteinomes that come from all levels of protein structure, structure, and function. An important part of functional genomics. Proteomics is often used to target proteins and proteins in large quantities, but it is often used specifically for protein purification and mass spectrometry.