The Global Protein Labeling Market is expected to reach USD 5.62 Billion by 2032, at a CAGR of 8.9% during the forecast period 2022 to 2032. Protein labeling is the chemical bonding of various entities to the intended nucleotide sequence, such as biotin, reporter enzymes, fluorophores, and radioactive isotopes. It is accomplished through the use of fluorescent fusions, ligases, and self-labeling tags.