- Hexa His tag peptide
- 3X FLAG Peptide
- T7 Tag Peptide
- FLAG tag Peptide
| S Tag PeptidePancreatic RNase A derivtive |
Sample solution is provided at 25 µL, 10mM.
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Cell Stem Cell.2017 Nov 20. pii: S1934-5909(17)30375-2.Quality Control & MSDS
- View current batch:
- Purity = 96.56%
- COA (Certificate Of Analysis)
- HPLC
- MS (Mass Spectrometry)
- MSDS (Material Safety Data Sheet)
- Datasheet
Chemical structure
| Description | S Tag Peptide is an oligopeptide derived from pancreatic ribonuclease A used for improving protein solubility. | |||||
| Targets | anti-S-Tag antibody | |||||
| IC50 | ||||||
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| Cas No. | SDF | Download SDF | |
| Synonyms | H-Lys-Glu-Thr-Ala-Ala-Ala-Lys-Phe-Glu-Arg-Gln-His-Met-Asp-Ser-OH | ||
| Chemical Name | S Tag | ||
| Canonical SMILES | CC(C(C(=O)NC(C)C(=O)NC(C)C(=O)NC(C)C(=O)NC(CCCCN)C(=O)NC(CC1=CC=CC=C1)C(=O)NC(CCC(=O)O)C(=O)NC(CCCNC(=N)N)C(=O)NC(CCC(=O)N)C(=O)NC(CC2=CN=CN2)C(=O)NC(CCSC)C(=O)NC(CC(=O)O)C(=O)NC(CO)C(=O)O)NC(=O)C(CCC(=O)O)NC(=O)C(CCCCN)N)O | ||
| Formula | C73H117N23O25S | M.Wt | 1748.91 |
| Solubility | ≥174.9mg/mL in DMSO | Storage | Desiccate at -20°C |
| Physical Appearance | A solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
S Tag is the name of an oligopeptide derived from pancreatic ribonuclease A (RNase A). If RNase A is digested with subtilisin, a single peptide bond is cleaved, but the resulting two products remain weakly bound to each other and the protein, it is called ribonuclease S, remains active although each of the two products alone shows no enzymatic activity. The N-terminus of the original RNase A, also called S-peptide, consists of 20 amino acid residues, of which only the first 15 are required for ribonuclease activity. This 15 amino acids long peptide is called S15 or S-tag.
It is believed that the peptide with its abundance of charged and polar residues could improve solubility of proteins it is attached to. Moreover, the peptide alone is thought not to fold into a distinct structure. On DNA-level the S-tag can be attached to the N- or C-terminus of any protein. After gene expression, such a tagged protein can be detected by commercially available antibodies. [1]
References: 1.R.T. Raines et al., The S-Tag Fusion System for Protein Purification. Methods Enzymol. 326, 362-367 (2000)
