Global Protein Expression Market By Expression System (Prokaryotic Expression Systems, Yeast Expression Systems, Insect Cell Expression Systems, Mammalian Cell Expression Systems, Cell-Free Protein Expression Systems and Plant-Based and Algal Expression Systems), By Product Type (Reagents and Kits, Expression Vectors and Plasmids, Competent Cells and Cell Lines, Instruments and Services), By Workflow Stage (Gene Cloning and Vector Design, Host Cell Transformation or Transfection, Protein Expression and Induction, Protein Purification and Characterization), By Application (Therapeutic Protein Development, Research Applications, Diagnostic Applications and Industrial and Enzyme Applications), By End-User (Pharmaceutical and Biotechnology Companies, Academic and Research Institutions, CROs & CDMOs and Others), Region and Companies – Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2025-2034