Description
VIP is a 28-amino-acid neuropeptide widely distributed in the gut, pancreas, and central nervous system. It acts via VPAC receptors to induce vasodilation, modulate smooth-muscle relaxation, stimulate glycogenolysis, and regulate immune responses. In research, VIP is used to study cardiovascular regulation, neuroprotection, metabolic signaling, and gastrointestinal secretion.
Sequence & Composition
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Amino Acid Sequence: H-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH₂
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Molecular Formula: C₁₄₇H₂₃₈N₄₄O₄₂S
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Molecular Weight: 3,325.8 Da
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CAS Number: 40077-57-4
Research & Applications
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Cardiovascular Studies: Promotes coronary and peripheral vasodilation and exerts positive inotropic and chronotropic effects.
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Gastrointestinal Physiology: Stimulates pancreatic bicarbonate secretion, relaxes smooth muscle of the GI tract, and enhances intestinal water and electrolyte transport.
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Neuroprotective Action: Modulates neuroinflammation, supports neuronal survival, and regulates circadian rhythms in hypothalamic circuits.
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Immunomodulation: Alters cytokine profiles and promotes anti-inflammatory responses in immune-cell assays.
Recommended Usage
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In Vitro: 0.1–10 μM in cell-based or tissue-slice assays.
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In Vivo (Rodent Studies): 0.5–2 mg/kg via intraperitoneal or intravenous injection, per experimental protocol.
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Solubility: Dissolve in sterile water or PBS; gentle warming (~37 °C) may aid dissolution.
Packaging & Storage
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Packaging: 10 mg amber glass vial with desiccant.
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Shelf Life: Up to 12 months unopened.
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Storage Conditions: Store at 2–8 °C; protect from light and moisture; avoid repeated freeze–thaw cycles.
For laboratory research use only. Not for human or veterinary consumption.
References
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Wikipedia: “Vasoactive intestinal peptide” en.wikipedia.org
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UniProt: VIP_HUMAN (P01282) uniprot.org
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Sigma-Aldrich: Vasoactive Intestinal Peptide product listing sigmaaldrich.com
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FAQ
1. What are research peptides?
Research peptides are short chains of amino acids used in scientific and medical research. They are not approved for human consumption or therapeutic use but are studied for their potential biological effects.
2. Is Reverse Peptides a trusted source for buying peptides online?
Yes. Reverse Peptides offers 99% purity, third-party tested, and USA-made peptides. Our products are backed by quality assurance and a loyal base of researchers
3. How do I store research peptides after receiving them?
Most peptides should be stored in a cool, dry place. Lyophilized powders are typically stable at room temperature but should be refrigerated for long-term storage. Always refer to the product label.
4. What payment methods do you accept?
We accept major credit/debit cards and secure online payment options. All transactions are encrypted and secure.
5. Is a prescription required to purchase peptides from Reverse Peptides?
No. Since our peptides are sold strictly for laboratory research purposes, no prescription is required. However, buyers must be qualified researchers or institutions.
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