Thymulin
Thymulin is a nonapeptide — a chain of nine amino acids — produced by epithelial cells in the thymus gland. It was first isolated and characterized in 1977 and has the sequence Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn, with a molecular weight of approximately 858 g/mol (without zinc). Its molecular formula is C₃₃H₅₄N₁₂O₁₅. Thymulin is chemically unique among thymic peptides because it requires a zinc ion (Zn²⁺) to fold into its characteristic three-dimensional fold. Without zinc, the peptide remains in an unfolded state. It is supplied as a white lyophilized powder that is soluble in water and should be stored refrigerated at 2–8 °C.
This product is strictly for research purposes only. Not approved for human or animal use.
Proudly Made in the UK
UK-manufactured · UK Tested
Certificate of Analysis
Independent laboratory testing confirms purity and composition of this research peptide.
+ ENDO PASSEDOverview
Thymulin is a nonapeptide — a chain of nine amino acids — with the sequence pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine (Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn). It was first isolated and characterized in 1977 from thymic epithelial cells in the thymus gland. Without its zinc cofactor, the peptide has a molecular weight of approximately 858 g/mol with the formula C₃₃H₅₄N₁₂O₁₅.
What distinguishes thymulin from other thymic peptides is that it requires a zinc ion (Zn²⁺) to adopt its characteristic three-dimensional fold. The zinc binds to specific residues in the peptide chain, and without it the molecule remains in an unfolded state. It is supplied as a white lyophilized powder, soluble in water, and should be stored refrigerated at 2–8 °C. This product is strictly for research purposes only.
PubChem Reference: View compound profile on NIH PubChem
This product is strictly for research purposes only. Not approved for human or animal use.
Key Characteristics
MOLECULAR PROFILE
Sequence: Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn
Weight: 858 g/mol (without zinc)
Type: Nonapeptide (9 amino acids)
Origin: Thymic epithelial cells
PHYSICAL PROPERTIES
Form: White lyophilized powder
Solubility: Water soluble
Zinc Requirement: Essential for folding
Storage: Keep refrigerated 36‑46 °F (2‑8 °C)
Size: 10mg, 5mg
SKU: AXIOM-THYMULIN
Categories: Single Peptides
Tags: Research Chemical
This product is strictly for research purposes only. Not for human or animal consumption.
