Quick answer
What is Thymosin beta 4?
Built from index records dated 2026-10-09 to 2026-10-13 Compiled by an automated pipeline, checked by The Peptide Observer editorial desk How this site works
Thymosin beta 4 is a peptide, grouped on this site under Tissue repair peptides, and the 12 research records kept here are 7 from studies in rats or mice and 5 that do not state what kind of study it is.
The literature search returned 684 records. This site keeps 12 of them, which is 1.8 per cent of what came back.
What it is
This site puts it in the Tissue repair peptides group.
Actin sequestration; identified in the retrieved literature as an actin-sequestering peptide that participates in the control of actin filament dynamics.[1, 2]
Stated in the titles of the cited 1991 Journal of Biological Chemistry and 1992 Molecular Biology of the Cell papers.
What kind of records
The records kept here are animal and laboratory studies only.
That sentence is produced by counting, not by reading. What was counted: no interventional human trial record; 7 rodent and 0 in vitro records among 12.
What this does not settle
- What it does in a body. Counting records is not reading them, and nothing here has been read in full.
- Whether it causes harm. No adverse-effect row was taken from any source for this entry.
- How long it lasts. No pharmacokinetics source was retrieved for this entry.
- What the other 672 retrieved records say. They are not in this index.
The longer explanation
Where this comes from
The records cited above, in full.
- Thymosin beta 4 and Fx, an actin-sequestering peptide, are indistinguishable. J Biol Chem (1991). pmid:1999398
- The control of actin nucleotide exchange by thymosin beta 4 and profilin. A potential regulatory mechanism for actin polymerization in cells. Mol Biol Cell (1992). pmid:1330091