GLP-1 “S” — 10mg (3 mL vial, lyophilized peptide)
GLP-1 “S” (GLP-1 receptor agonist analog) — a 31-amino-acid GLP-1(7–37)–based peptide engineered with an Aib8 substitution to block DPP-4 cleavage, a Lys26(γ-Glu-[OEG]2-C18 diacid) acylation to enhance albumin association, and a Lys→Arg substitution at position 34 (GLP numbering), enabling potent GLP-1R engagement in in-vitro GPCR pharmacology. Supplied by Peptide Tech at ≥ 99% purity (HPLC/MS verified) for in-vitro, cellular, and biochemical research use only (RUO). Not for human or veterinary use.
Specifications
| CAS Number | 910463-68-2 |
| Chemical Name | (acylated GLP-1 analog) |
| PubChem CID | 56843331 |
| Molecular Formula | C187H291N45O59 |
| Molecular Weight | ≈ 4,113–4,114 g/mol |
| Sequence | GLP-1(7–37) analog with Aib at position 8; Lys26 acylated via γ-Glu-[OEG]2-C18 diacid; Lys→Arg at position 34; linear peptide (no disulfides). Exact lot sequence details: see COA. |
| Counter-ion | Acetate (typical; confirm on lot COA) |
| Physical Appearance | White to off-white lyophilized powder |
| Container | 3 mL Type I glass vial, bromobutyl rubber stopper, aluminum flip-off seal (net content: 10 mg) |
| Purity | ≥ 99% (verified by HPLC & MS; third-party tested) |
| Solubility | Soluble in sterile water. For concentrated stocks, pre-wet with ≤0.1–5% acetic acid; gently agitate. Consider 0.05–0.1% carrier protein to minimize adsorption; 0.22 µm filter-sterilize if required. |
Molecular Structure (Reference)
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Storage & Handling
- Lyophilized (unopened): Store at ≤ −20 °C, protected from light and moisture. For long-term archival, ≤ −80 °C is recommended.
- After reconstitution: Aliquot into sterile, low-binding tubes; store at ≤ −80 °C. Avoid repeated freeze–thaw cycles.
- Handling: Allow vial to reach room temperature before opening to minimize condensation. Use sterile technique and neutral-pH buffers; consider carrier protein to mitigate surface adsorption.
- Research Use Only (RUO): Not for human or veterinary use, ingestion, diagnostic, or therapeutic applications.
Potential Applications in Research
Strictly in-vitro, cellular, or biochemical contexts — no clinical or human-use claims.
- GLP-1R pharmacology: cAMP accumulation, β-arrestin recruitment, and receptor internalization in heterologous expression systems.
- Biased signaling & pathway profiling: Quantify relative signaling bias (e.g., Gs vs. β-arrestin) versus native GLP-1 and reference analogs.
- Ligand binding/occupancy: Competition and kinetic studies versus GLP-1 and other GLP-1R agonists.
- Structure–function: Evaluate effects of Aib8 substitution and Lys26 acylation on receptor engagement, trafficking, and stability.
- Formulation/stability: Assess adsorption, aggregation resistance, and excipient impacts under cell-culture conditions.
Citations (PubMed)
- Lau, J., et al. “Discovery of the Once-Weekly GLP-1 Analogue Semaglutide.” J Med Chem, 2015. PubMed
- Manandhar, B., et al. “GLP-1 Analogs: Recent Advances in Design and SAR.” J Med Chem, 2015. PubMed
- Zhang, X., et al. “Cryo-EM structures of semaglutide-bound GLP-1R–Gs complexes.” Cell Reports, 2021. Link
- Liu, Q.-K., et al. “Mechanisms of action and therapeutic applications of GLP-1R agonists.” Signal Transduct Target Ther, 2024. PMC
Compliance & RUO Disclaimer
For laboratory research use only (RUO). Not a drug, food, or cosmetic. Not for human or veterinary use. Purchase and use are limited to qualified personnel operating under institutional laboratory guidelines.
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