Short answer
TB-500 is a fragment of thymosin beta-4, a naturally occurring 43-amino-acid protein that binds actin. Because actin controls cell shape and movement, thymosin beta-4 is studied in cell migration and tissue remodeling research models. TB-500 is sold as a lyophilized research powder.
What is thymosin beta-4?
Thymosin beta-4 is one of the most abundant actin-binding proteins in cells. It keeps actin monomers available for building the cytoskeleton - the internal scaffold that lets cells change shape and move [1].
TB-500 refers to a fragment of this protein used in research. Because the fragment retains actin-binding activity, it is used as a tool in studies of cell motility and related pathways.
What the research shows
Key facts at a glance
| Property | Detail |
|---|---|
| Full protein | Thymosin beta-4 (43 amino acids) |
| Research form | TB-500 fragment |
| Main function studied | Actin binding and cell migration |
| Research themes | Cardiac, dermal, neural repair models |
| Typical form | Lyophilized powder |
| Purity expectation | 99%+ by HPLC |
What to check before buying TB-500
Compare BPC-157 vs TB-500 if you are deciding between the two peptides, or browse TB-500 product options.
FAQ
What is TB-500?
A research fragment of thymosin beta-4, a 43-amino-acid actin-binding protein.
What is thymosin beta-4?
A small, abundant protein that binds actin monomers and supports cell movement.
How is TB-500 studied?
In cell migration, actin dynamics, cardiac and dermal repair models.
Is TB-500 for human use?
No, laboratory research use only.