Comparison
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, Epitalon is reported to increase lifespan and reduce tumor incidence in animals, and to influence differentiation of neural and mesenchymal stem cells; is studied as an epigenetic regulatory peptide36.
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, Epitalon is a synthetic tetrapeptide, Ala-Glu-Asp-Gly (AEDG), that has been shown to bind histones and modulate gene expression and chromatin state, with reported effects on pineal function, neurogenesis, and longevity in animal models36.
DSIP is 9 amino acids long, whereas Epitalon is shorter as it has a length of 4 amino acids. DSIP is made up of a sequence of Tryptophan, Alanine, Glycine, Glycine, Aspartic acid, Alanine, Serine, Glycine, Glutamic acid. Epitalon is made up of a sequence of Alanine, Glutamic acid, Aspartic acid, Glycine.
DSIP
Not clearly established in the current dataset.
Epitalon
Binds nuclear histone proteins (H1, H2B, H3, H4) rather than a classic membrane receptor36
DSIP
Not assigned in the current dataset.
Epitalon
Not assigned in the current dataset.
No related articles are linked to these peptides yet.