Comparison

DSIP vs Selank

Function

While DSIP was originally described for inducing spindle and delta sleep activity when infused into the brain of rabbits; later studies report stress-modulating and endocrine effects, though its physiological role is still debated47, Selank is a peptide developed in Russia as an anxiolytic and nootropic; in animal models it reduces anxiety-like behavior and modulates immune parameters under stress39.

Mechanism

While DSIP works as an endogenous nonapeptide, Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu, with proposed neuromodulatory actions; it interacts with components of the MAPK cascade and may be related to glucocorticoid-induced leucine zipper (GILZ), but its precise biosynthetic origin remains unknown4757, Selank is a synthetic heptapeptide, Thr-Lys-Pro-Arg-Pro-Gly-Pro, that combines a tuftsin fragment with a Pro-Gly-Pro motif and is reported to modulate GABAergic neurotransmission and cytokine balance while being resistant to proteolytic degradation39.

Length and Sequence

DSIP is 9 amino acids long, whereas Selank is shorter as it has a length of 7 amino acids. DSIP is made up of a sequence of Tryptophan, Alanine, Glycine, Glycine, Aspartic acid, Alanine, Serine, Glycine, Glutamic acid. Selank is made up of a sequence of Threonine, Lysine, Proline, Arginine, Proline, Glycine, Proline.

Receptor

DSIP

Not clearly established in the current dataset.

Selank

Not clearly established in the current dataset.

Organism or Origin

DSIP

Endogenous vertebrate neuropeptide; its encoding gene has not been identified47

Selank

Synthetic analog of the IgG-derived tetrapeptide tuftsin39

Gene

DSIP

Not assigned in the current dataset.

Selank

Not assigned in the current dataset.

Related articles

No related articles are linked to these peptides yet.