| Product description | The recombinant protein contains HCV NS4 immunodominant regions, expressed and derived from E.coli in soluble form |
| Purification methods | Purified by affinity chromatography |
| Buffer composition | 50mM Tris-HCl, 5mM Glutathione, 150mM NaCl, pH8.0 |
| Preservative | None |
| Storage | Frozen at -70 ˚C, avoid repeated freeze-thaw cycles |