Selank or selanc is a synthetic heptapeptide analog of the endogenous tetrapeptide tuftsin, with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro. Selank is sometimes called tuftsin analog 7. Tuftsin was discovered by Victor Najjar in 1969 (Siemion and Kluczyk, 1999), is produced primarily in the spleen, and is a fraction of Immunoglobulin Gamma (IgG). Selank was first synthesized in Russia as part of efforts to find a "superagonist" version of tuftsin, because tuftsin .
China
