NTSR
Advanced protein purification services using chromatography, filtration, and specialized techniques for high-purity protein isolation.
Protein purification is the process of isolating a specific protein of interest from a complex biological mixture. NTSR specializes in multi-step purification strategies designed to achieve ultra-high purity while maintaining biological activity. Using state-of-the-art FPLC systems and a variety of resin chemistries (Affinity, Ion-Exchange, Size-Exclusion), we deliver proteins suitable for structural biology, drug screening, and therapeutic development.
Highly selective isolation using tags (His, GST, Flag) or specific ligands for maximum initial purity.
Separation based on surface charge using Cation (CM/SP) or Anion (DEAE/Q) exchange resins.
Size-Exclusion Chromatography for polishing and removing aggregates to ensure monodispersity.
| Parameter | Trial Grade | Analysis Grade | Crystallography Grade |
|---|---|---|---|
| Purity (SDS-PAGE) | >75% | >90% | >98% |
| Endotoxin Level | N/A | < 1 EU/mg | < 0.1 EU/mg |
| Scale Range | µg - mg | mg - grams | Custom Bulk |
| QC Verification | BCA + PAGE | LC-MS + SEC | Activity Assay + NMR |