Third-Party COA AvailableThymosin Beta-4 (TB-4) — Full Length 43 AA, 5mg (TB-500 alias)
SKU: ADL-TB500-5
Strength
5mg
Purity
99.509% Purity
$20.00
Thymosin Beta-4 (TB-4) — Full Length 43 AA, 5mg | Lyophilized Powder | RUO. This listing identifies full-length Thymosin Beta-4, not the 7-amino-acid Ac-LKKTETQ fragment. TB-500 is retained only as a vendor/search alias. Format: Lyophilized powder. Quantity: 5mg. Storage: -20°C, protect from moisture and light. Stability: 24 months lyophilized. For research use only. Not intended for human or veterinary use. Must be handled by qualified personnel in a proper research setting.
Batch #
ADL-TB4-001
Purity
99.509%
Test Date
2026-07-11
Lab
Kovera Labs
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Specifications
CAS Number
77591-33-4
Molecular Formula
C212H350N56O78S
Molecular Weight
4963.44 g/mol
Amino Acid Sequence
Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES-OH
Nominal Content
5mg
Identity Result
Conforms to reference standard
Storage & Handling
Storage Conditions
-20°C, protect from moisture and light
Research Overview
Full-length Thymosin Beta-4 (TB-4) is a naturally occurring 43-amino acid peptide originally isolated from thymic tissue, encoded by the TMSB4X gene in humans. Chemically, it belongs to the beta-thymosin family and is characterized by a conserved actin-sequestering domain (LKKTET motif) that enables high-affinity binding to G-actin monomers, thereby regulating actin polymerization dynamics within the cytoskeleton. Researchers study TB-4 primarily for its role in modulating actin homeostasis, cell migration, and cytoskeletal reorganization. Its biological activity is linked to the upregulation of metalloproteinases and the activation of the ILK (integrin-linked kinase) signaling pathway. As a research compound, TB-4 serves as a molecular tool to investigate actin dynamics and cell motility pathways in in vitro and in vivo experimental models. TB-4 is supplied as a lyophilized research material for laboratory in vitro and analytical use only.
References
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Related Research Materials — Thymosin Beta-4 (TB-4) — Full Length 43 AA, 5mg (TB-500 alias)
All compounds and content on this site are for research use only (RUO). Not for human consumption. For laboratory and research purposes only. Nothing here is medical advice.