| Product description | The recombinant protein contains CagA Helicobacter pylori immunodominant regions, expressed and derived from E.coli |
| Purification methods | Purified by affinity chromatography |
| Buffer composition | 50mM Tris, 20mM Glutathione, pH8.0 |
| Preservative | None |
| Storage | Frozen at -70 ˚C, avoid repeated freeze-thaw cycles |
Vitrotest produces recombinant CagA protein containing key immunodominant regions. This protein is typical for type I bacteria, while type II does not contain Cag. A recombinant CagA was produced in an E. coli expression system and purified by affinity chromatography. When used as an antigen, CagA exhibits good diagnostic performance.