What Is Epithalon?

Most of the peptides in this knowledge centre run to dozens of residues; Epithalon has four. Its sequence, Ala-Glu-Asp-Gly, can be written in full in a single breath, which makes it an unusually clean subject for research into very short peptides. This profile sets out what the tetrapeptide is and the cellular research it features in, without touching on use.

A four-residue peptide occupies an unusual position in research. With so little sequence, the link between what the molecule is and how it behaves can be examined with very few confounding variables, which is precisely why minimal peptides are studied at all. Epithalon’s AEDG sequence is short enough to hold entirely in mind, and that simplicity is part of its appeal as a subject.

Simplicity also has a practical edge. A sequence of four residues can be synthesised and confirmed with little ambiguity, so a laboratory can be unusually certain of exactly what it is working with before any study begins. For research that prizes a well-defined starting point, that certainty is worth as much as anything the molecule does.

Epithalon is the synthetic short-sequence counterpart of a peptide preparation associated with the pineal gland. Reducing that origin to a defined four-residue sequence gives a reproducible research material, prepared synthetically as described in how peptides are manufactured.

The four residues include two acidic ones, glutamate and aspartate, which give the small molecule its character. Epithalon is supplied as a lyophilised powder, listed as Epithalon in the catalogue, and the way such short sequences are written is covered in peptide sequence notation.

Extremely short peptides are valuable precisely because they are simple: with only four residues, the relationship between sequence and behaviour can be examined with little ambiguity. Epithalon is studied as such a minimal sequence, a tractable subject for cellular research rather than for any attributed property.

There is a complementary appeal in how Epithalon is studied: a sequence this short can be examined almost exhaustively. With four residues, the structural variables a researcher might want to alter are few and well defined, so the molecule lends itself to systematic study in a way a large peptide does not. That tractability, rather than any attributed property, is the durable reason a four-residue sequence keeps a place in cellular research.

Epithalon appears in cellular research, including laboratory studies relating to telomere biology, where it is characterised in defined systems. These are described as areas of study only. The framing this category calls for is set out in understanding research compounds, and the wider range is in the research catalogue.

The study areas and the limits of the evidence are taken up in the Epithalon research overview, and the handling of a very short, acidic peptide is the subject of the Epithalon storage & handling guide.

All products are supplied strictly for laboratory research use only. Not for human or animal consumption. Not a drug, supplement, or food. Not for diagnostic or therapeutic use. The material on this page is educational and factual: it summarises areas of published scientific investigation and general laboratory practice. It is not guidance for the use of any material in humans or animals, and nothing here should be read as a claim about safety, performance, or outcomes. Where a specific product specification or safety data sheet is provided with a material, that document is the definitive reference and takes precedence over any general information given here.