Proteomics is a fast and efficient scientific discipline primarily focused on the study of proteomes or the sum of proteins, tissues, cells and cellular fluids. By studying these components, a wide range of data is obtained based on the expression and modification of certain desired proteins. Proteins are integral infrastructural and functional parts of cells that are built from a diverse order of amino acids by patterns on DNA and RNA molds. Most of the discoveries in the field of proteomics are used for medical purposes, especially in the actions against cancer as well as in the effective and targeted action of drugs on certain cellular mechanisms that cause various inflammations and diseases of organisms. In addition to proteomics, the notion of genome is closely related. Within proteomics important term is also a proteome which denotes a comprehensive set of proteins produced by an organism. The narrower context of the proteome also includes modifications and changes that can occur in the basic, native protein if the organism is exposed to a long-lasting and diverse number of factors that will affect the change in the functionality and structure of the protein.