Peptide Science research editorial team.
TB-500 2mg Full 43-Residue Format Overview
TB-500 2mg from Peptide Science is the full-length 43-amino-acid Thymosin Beta-4 protein supplied as a lyophilised vial at 2 mg per pack for in-vitro and preclinical regenerative-research work. This is the complete sequence of the actin-sequestering protein found in vertebrate cytoplasm, as distinct from the truncated 7-amino-acid fragment listed as a separate research item in this catalogue.
Class and Sequence Background
Thymosin Beta-4 is a 43-residue protein characterised for high-affinity binding of monomeric G-actin (one beta-thymosin molecule sequestering one actin molecule). The full-length protein is found at high cytoplasmic concentrations in vertebrate cells and is studied in preclinical regenerative-medicine work for its effects on actin polymerisation kinetics, cell migration, and angiogenesis. See the broader healing peptide range.
Specifications
| Property | Value |
|---|---|
| Compound | Thymosin Beta-4 full 43-amino-acid protein |
| Amino-acid count | 43 |
| Molecular weight | approximately 4960 g/mol |
| Class | Beta-thymosin family; actin-sequestering protein |
| Supplied form | Lyophilised powder, sealed vial |
| Strength | 2 mg per vial |
| Purity | greater than 99 percent (HPLC verified) |
| Storage | 2 to 8 degrees Celsius lyophilised; minus 20 degrees Celsius long-term |
For the 5 mg and 10 mg formats of the same full-length protein, see TB-500 5mg full 43-residue.
Reconstitution and Handling
The lyophilised full-length protein reconstitutes with bacteriostatic water for cell-culture or animal-model work. The full 43-residue form is preferred for research protocols requiring complete actin-binding kinetics; the truncated fragment is listed separately as TB-500 Fragment 17-23 10mg.
Quality and Shipping
Each batch passes HPLC at greater than 99 percent purity, with mass-spec confirmation against the theoretical 4960 g/mol molecular weight. A Certificate of Analysis accompanies every order. Material is filled in a US laboratory and dispatched in insulated, temperature-monitored packaging.
For laboratory research and development use only. Not for human or veterinary consumption. Has not been evaluated by the U.S. Food and Drug Administration and is not intended to diagnose, treat, cure, or prevent any disease. Purchasers acknowledge they are qualified researchers age 21 or older and accept responsibility for compliance with all applicable federal, state, and local laws. Lyophilised vials store at 2 to 8 degrees Celsius; protect from light.
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