DSIP: Research overview, identity, and laboratory handling guide

8 min read · Research use only

Written and reviewed by BluGen Research Team · Editorial standards

Delta sleep-inducing peptide reference used in laboratory neuropeptide and sequence-stability research. ≥99% HPLC. Research use only. This guide covers identity, published research context, procurement checks, and storage — RUO only, no clinical claims.

What DSIP is in published research

DSIP is a 9-residue neuropeptide reference sequence used in laboratory work around peptide stability, chromatographic behavior, and neuropeptide assay development.

The compact sequence makes DSIP useful for HPLC method development and MS confirmation workflows. CoA documentation provides identity, purity, and net peptide content.

Store lyophilized material sealed at -20 °C away from light. Reconstitute in compatible lab solvent, aliquot into working volumes, and avoid repeated freeze/thaw.

Each lot includes CoA data and batch records filed against the SKU.

The material class "Neuropeptide reference (research)" helps procurement teams group DSIP with related reference peptides during comparative studies.

Sequence and identity

DSIP identity on the catalog: Common name: Delta sleep-inducing peptide / DSIP; Sequence: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu; Length: 9 residues; Molecular formula: C35H48N10O15; Molecular weight: 848.81 g/mol; Appearance: White lyophilized powder; Purity (HPLC): ≥ 99%; Net peptide: Listed on CoA; Solubility: Soluble in bacteriostatic water or near-neutral lab buffer. Copy these into receiving and LIMS before reconstitution.

Mechanisms studied in published research

Mechanism-focused research on DSIP is typically conducted in cell lines or biochemical preparations that express the relevant receptor or binding protein for its class.

Design controls that include scrambled-sequence or orthogonal-receptor negative controls when your protocol evaluates DSIP pharmacology in vitro.

Report effect sizes with lot number and CoA reference so results can be reproduced if the same DSIP SKU is reordered later.

Avoid extrapolating in vitro binding or signaling readouts to whole-organism outcomes; RUO materials are not qualified for clinical investigation.

Procurement and identity verification

Request the lot-specific CoA for DSIP at receipt. Verify SKU, variant size if applicable, and identity mass before the lot enters general storage.

Compare HPLC purity to your internal minimum for the peptide family. File chromatogram excerpts when your QMS requires raw data.

Enter net peptide content from the CoA into inventory before calculating molarity for DSIP working stocks.

Attach purchase order, packing list, and CoA in one audit folder per lot.

Storage and reconstitution

Store lyophilized DSIP sealed at -20 °C protected from light unless the CoA states otherwise.

Reconstitute with bacteriostatic water or a buffer validated for your assay pH. Aliquot to limit freeze-thaw.

For oxidation-sensitive sequences in DSIP, minimize open-vial time at room temperature during weighing.

See our lyophilized storage guide for institution-scale SOP examples and aliquot labeling conventions.

Comparative reference points

Researchers comparing DSIP with adjacent catalog references often evaluate the following SKUs in parallel plates:

Use matched reconstitution buffers and stock concentrations when running comparative binding or signaling assays.

Document reviewers should cross-link this guide with the product certificate of analysis and internal receiving SOP.

When publishing methods, cite lot number, SKU, reconstitution buffer, and stock concentration so external labs can interpret your figures.

Institutional procurement may require RUO acknowledgment at checkout; store that acknowledgment beside batch records for audits.