The core significance of protein purification
01 Basic scientific research: Revealing the molecular mechanisms of life
★ Structural analysis: Techniques such as X-ray crystallography and cryo-electron microscopy require highly pure protein samples to obtain high-resolution three-dimensional structures, providing a foundation for understanding protein functions.
★ Functional analysis: In vitro studies of enzyme kinetics, specificity, and regulatory mechanisms must rely on high-purity proteins to avoid interference from impurities.
★ Interaction studies: Experiments on protein-protein, protein-DNA/RNA, and protein-small molecule (drug) interactions (such as surface plasmon resonance and isothermal titration calorimetry) require purified proteins as core materials.
★ Post-translational modification studies: To identify modification sites such as phosphorylation and glycosylation, target proteins need to be purified first.
02 Biotechnology and Pharmaceutical Industry: Producing Valuable Products
★Therapeutic protein production: Drugs such as monoclonal antibodies (adalimumab, rituximab), insulin, growth hormone, interferon, and recombinant protein vaccines (hepatitis B vaccine, HPV vaccine) require large-scale fermentation and purification to ensure safety and efficacy.
★Enzyme industry: Enzymes used in detergents (proteases), food industry (glucose isomerase), and PCR (Taq DNA polymerase), etc., rely on purification technology for large-scale production.
★Diagnostic reagents: The core components of immunoassay reagents such as ELISA (antibodies, antigens) need to be purified to ensure detection specificity and sensitivity.
03 Provide materials for protein engineering and modification
★ Obtain natural proteins as the starting point for modification and as controls.
★ Purify the mutant proteins after genetic engineering modification.
★ Test the functions of the mutants in vitro to verify the modification effects.
04 Antibody production and purification
The specific antibodies used in research and diagnosis for detecting target proteins (such as those used in Western blot and immunofluorescence experiments) need to first immunize animals with the target antigen, and then purify the antibodies from the serum.
The core application fields of white purification
l Basic biological research: Exploration of life mechanisms, analysis of protein functions;
l Biopharmaceuticals: Production of therapeutic proteins, vaccines, and antibody drugs; Industrial enzyme preparations:
l Preparation of enzyme products in fields such as detergents, food, and chemicals;
l Development of core reagents for immunological detection and molecular diagnosis;
l Protein engineering: Improvement of protein properties, development of new proteins.
