Thymosin beta-4 is a protein that in humans is encoded by the TMSB4X gene.    Recommended INN (International Nonproprietary Name) for thymosin beta-4 is ‘timbetasin’, as published by the World Health Organization (WHO).  The potential use and abuse of thymosin β-4 in sport and exercise science. … Doping in Sports Humans Performance-Enhancing Substances* … Performance-Enhancing Substances thymosin beta(4) Thymosin …
Fairfax Media reported today that 14 players from the Cronulla Sharks NRL club may be suspended by the Australian Anti-Doping Agency ( ASADA) for the alleged use of a substance called thymosin… Abstract A veterinary preparation known as TB-500 and containing a synthetic version of the naturally occurring peptide LKKTETQ has emerged. The peptide segment (17)LKKTETQ (23) is the active site within the protein thymosin β (4) responsible for actin binding, cell migration and wound healing.
Thymosin β4 (Tβ4) is a multifunctional and widely distributed peptide that plays a pivotal role in several physiological and pathological processes in the body, namely, increasing angiogenesis and proliferation and inhibiting apoptosis and inflammation.
View history NMR structure of a β-thymosin. Both thymosin α 1  and β-thymosins are intrinsically unstructured proteins, i.e. they lack a stable fold when free in aqueous solution. This structure, mostly alpha helix, was artificially stabilised by an organic solvent. 
Provide a record of any correspondence between ASADA staff and the World Anti-Doping Authority containing the keywords: “Thymosin”, “Thymosin Beta 4”, “TB-5 Skip to main content Main navigation … Provide audit logs showing the date upon which Thymosin Beta 4 was published as a banned substance on the check your substances website. Provide a …
Thymosin Beta-4 is a small, endogenous peptide that is originally isolated from the Thymus gland and comprises 43 amino acids. It belongs to the ‘Thymosin’ family of lymphocyte growth factors initially extracted from calf thymuses, with Thymosin Beta-4 being the most abundant of Beta-Thymosins ( 1 ).
Thymosin beta 4, also known as TB4 (tβ4) and TB-500, is a peptide therapy that can be used to help individuals overcome certain symptoms and health concerns. Peptide therapy has boomed over the past few years and there are now more peptides than ever being used for peptide therapies.