TB Fragment (Thymosin β4 17–23) Research Peptide
TB Fragment is a short fragment of thymosin β4. The version most often studied is Ac-LKKTETQ, residues 17–23, which carries the actin-binding motif.
3 listed TB Fragment (Thymosin β4 17–23) presentations
Each presentation is a separate specification with its own product code. Open one to add it to your inquiry cart or to ask for a quote on WhatsApp. Pricing, availability and lot documents are confirmed for each order.
| Presentation | Per vial | Per box | Product code |
|---|---|---|---|
| TB Fragment 2 mg → | 2 mg | 10 vials | TBF2 |
| TB Fragment 5 mg → | 5 mg | 10 vials | TBF5 |
| TB Fragment 10 mg → | 10 mg | 10 vials | TBF10 |
Amounts are per vial. mg, IU and mL describe different quantities and are not interchangeable. For laboratory research use only.
About TB Fragment (Thymosin β4 17–23)
Thymosin β4 binds G-actin through a central motif, LKKTETQ, spanning residues 17–23. Synthetic peptides built around this motif, most often the N-acetylated heptapeptide Ac-LKKTETQ, are used when researchers want the actin-binding region without the full 43-amino-acid peptide.
Analytical work has identified Ac-LKKTETQ as the active component of some products sold as TB-500, which is why the fragment and full-length thymosin β4 are listed separately here. The supplier names this material “TB Frag”, so the exact sequence should be confirmed on the lot documents.
Research context
The fragment is used to study which activities of thymosin β4 depend on the actin-binding region, including cell migration and actin polymerization in cell-based assays, and in direct comparisons with the full-length peptide.
What to confirm for TB Fragment (Thymosin β4 17–23)
Check these points with our team before you order:
- The exact fragment sequence and N-terminal acetylation on the identity report.
- The number of boxes you need and the US delivery destination.
- Which lot documents you require before ordering, such as an identity or purity report.
TB Fragment (Thymosin β4 17–23): frequently asked questions
Why choose the fragment instead of full-length thymosin β4?
The fragment isolates the actin-binding region, which helps separate motif-dependent effects from those that need other parts of thymosin β4. It is also a much smaller molecule to characterize analytically.
Which TB Fragment (Thymosin β4 17–23) presentations are listed?
3 presentations are listed: 2 mg (TBF2), 5 mg (TBF5), 10 mg (TBF10). Each is packed 10 vials per box, and every presentation has its own specification page and product code.
How do I request a quote for TB Fragment (Thymosin β4 17–23)?
Open the presentation you need and use Ask price to message PureForm Biosciences on WhatsApp, or add several materials to the inquiry cart and send them together. Pricing, current availability and lot documents are confirmed in that conversation.
Related research materials
Research Use Only. TB Fragment (Thymosin β4 17–23) is supplied strictly for laboratory research. It is not a drug, supplement or medical product and is not for human or veterinary consumption.