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Protein Expression

Protein Antibody Expression

Comprehensive protein and antibody expression services using multiple host systems including bacterial, yeast, insect, and mammalian cells.

Overview

High-yield protein and antibody expression is the cornerstone of modern biotechnology. NTSR offers scalable expression services across four major host systems, ensuring that your protein is produced with the correct folding and post-translational modifications (PTMs). Whether you need milligrams for research or grams for pilot studies, our optimized vector systems and transient transfection protocols deliver rapid results without compromising quality.

Expression Systems

Mammalian (ExpiCHO/Expi293)

Proprietary high-density transient systems for superior PTMs and antibody folding.

Bacterial (E. coli)

Cost-effective, high-throughput expression for non-glycosylated proteins and enzymes.

Baculovirus / Insect

Ideal for large, multi-subunit protein complexes and membrane proteins.

Performance Metrics

Feature Mammalian Bacterial Insect
Turnaround Time 2-4 Weeks 1-2 Weeks 3-5 Weeks
Typical Yield up to 3g/L Variable (High) up to 50mg/L
Glycosylation Human-like None Simple/High-mannose
Scalability Superior Excellent Good

Key Features

  • Serum-free, animal-component-free media
  • Advanced PTM analysis and validation
  • Endotoxin-free purification options

Applications

  • Therapeutic candidate screening
  • Diagnostics development
  • In vitro functional assays
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