| Bioactivity | X-press Tag Peptide is a tag peptide used for protein purification. X-press Tag is also an N-terminal leader peptide; this N-terminal peptide contains a polyhistidine sequence, the Xpress epitope (part of bacteriophage T7 gene 10 protein) and an enterokinase cleavage site. Anti-Xpress antibodies recognize the Xpress epitope sequence found in this leader peptide. | ||||||
| Name | X-press Tag Peptide | ||||||
| Sequence | Asp-Leu-Tyr-Asp-Asp-Asp-Asp-Lys | ||||||
| Shortening | DLYDDDDK | ||||||
| Formula | C41H59N9O20 | ||||||
| Molar Mass | 997.96 | ||||||
| Appearance | Solid | ||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||
| Storage | Sealed storage, away from moisture and light, under nitrogen
*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen) |