Description
Delta Sleep-Inducing Peptide, commonly abbreviated DSIP, is a short endogenous nonapeptide built from a sequence of nine amino acids (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu). It was first characterized in the late 1970s after being recovered from cerebral venous blood, and it has remained a reference compound in neuropeptide chemistry ever since.
Although it is grouped among the early so-called sleep-associated peptides, the precise receptor target and downstream signaling pathway of DSIP are still not fully resolved, which keeps it an interesting subject for mechanistic and structural investigation. Its small size and well-defined sequence make it a convenient model for studying short regulatory peptides in controlled laboratory settings.
This listing supplies DSIP as a lyophilized powder, with 5mg packaged per sealed glass vial for benchtop reconstitution and handling in a research environment.
Areas where DSIP commonly appears in the published research literature include:
- Neuropeptide structure-activity and stability studies under varied analytical conditions
- Investigations into peptide-receptor interactions and candidate cellular targets
- Cellular signaling work using neuronal model systems
- Historical electrophysiology research examining links to delta-wave activity in cell and animal models
- Comparative analysis alongside other short-chain regulatory peptides
Each batch is offered with supporting analytical documentation. Identity and purity are assessed by HPLC and mass spectrometry, and a Certificate of Analysis (COA) is available on request. Store the sealed vial cold and protected from light, and reconstitute only with appropriate solvent under proper laboratory practice.
Research Use Only: This material is supplied strictly for laboratory research. Not for human or animal consumption. It is not a drug, food, supplement, or cosmetic and has not been approved by the FDA.


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