TB-500 Fragment 17-23 is a 10mg research vial of the seven-residue LKKTETQ region of thymosin beta-4, supplied by Peptide Sciences for structure-function studies of the actin-binding domain.
Why Study the 17-23 Fragment?
Residues 17-23 of thymosin beta-4 form the core actin-binding motif thought to drive much of the full peptide’s effect on cell migration. Working with the isolated fragment lets researchers test whether a given effect requires the whole 43aa molecule or only this short sequence. It is also a smaller, lower-cost molecule for screening assays and peptide-stability research.
TB-500 Fragment 17-23 Specifications
| Property | Value |
|---|---|
| Compound | TB-500 Fragment (Thymosin Beta-4 residues 17 to 23) |
| Sequence | KLKKTET (Lys-Leu-Lys-Lys-Thr-Glu-Thr) |
| Amino-acid count | 7 |
| Molecular weight | approximately 889 g/mol |
| Class | Beta-thymosin active-fragment peptide |
| Supplied form | Lyophilised powder, sealed vial |
| Strength | 10 mg per vial |
| Purity | greater than 99 percent (HPLC verified) |
| Storage | 2 to 8 degrees Celsius lyophilised; minus 20 degrees Celsius long-term |
Research Applications of the Fragment
Use this 10mg vial alongside full-length TB-500 in head-to-head migration, wound-closure or actin-polymerisation assays. Comparing the two is a classic approach in peptide structure-activity research.
Quality Control, COA and Shipping
Each lot is analysed by reverse-phase HPLC and identity-confirmed by mass spectrometry before release, and the batch-specific Certificate of Analysis is available for every order. Vials are lyophilised, sealed under inert conditions and shipped in insulated packaging from our US facility.
Related Research Compounds
Researchers working with thymosin beta-4 fragment often compare results with these catalog compounds:
- TB-500 (Thymosin Beta-4) 5mg (43aa)
- TB-500 (Thymosin Beta-4) 10mg (43aa)
- BPC-157 10mg
- TB-500 (Thymosin Beta-4) 2mg (43aa)
Explore the full Healing Peptides collection, browse the complete Peptide Sciences research peptide catalog, or review published literature on thymosin beta-4 fragment in PubMed.
Research use only. This product is sold strictly for in-vitro laboratory research and development by qualified professionals. It is not for human or veterinary use, not a drug, food or cosmetic, and has not been evaluated by the FDA to diagnose, treat, cure or prevent any disease. Buyers must be 21+ and comply with all applicable laws.
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