Cyclo(-GLY-DSIP), A cyclic analog of the delta-sleep-inducing peptide: computer simulation of spatial structure involving NMR data.
Nekrasov. A N AN; Mikhaleva. I I II
Key Findings
- The cyclic DSIP analog’s 3D structure was modeled using 1H NMR data.
- The peptide adopts an almost planar conformation with Asp5, Ser7, and Glu9 side chains on one face and Trp1 on the other.
- The distinct side‑chain arrangement is suggested to be linked to the peptide’s functional properties.
Practical Outcomes
- This study doesn’t provide new dosing or usage tips for DSIP. It mainly adds basic scientific insight that could help future developers design better analogs, but there’s no immediate action for most biohackers.
Summary
Scientists used computer modeling and NMR data to map the 3D shape of a circular version of the sleep‑inducing peptide DSIP. They found the molecule is almost flat, with certain side chains grouped on one side and the tryptophan side chain on the opposite side, which might explain how it works.
Abstract
The spatial structure of cyclo(-Gly-DSIP-), a physiologically active analog of the delta sleep-inducing peptide, was determined by computer modelling using 1H NMR data. An interesting feature of the spatial structure in DMSO was detected. One side of almost planar resulting conformation is formed by the side chains of the Asp5, Ser7 and Glu9 residues, the side chain of the Trp1 residue forming the other part of the outer surface. This feature may be associated with the functional properties of the peptide.
Study Information
pubmed
1996