SNAP-8 (200mg) Research Peptide: A Precision Tool for SNARE Complex & Vesicle Fusion Studies

If your research focuses on the molecular mechanisms of vesicle fusion, neurotransmitter release, or protein-protein interaction dynamics, SNAP-8 (200mg) research peptide offers a precisely engineered synthetic tool. This acetylated octapeptide (Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH₂) is a structural mimic of the N-terminal domain of the human protein SNAP-25 (synaptosomal-associated protein of 25 kDa). SNAP-25 is a core component of the SNARE complex—the molecular machinery responsible for synaptic vesicle docking and fusion. By competitively binding to syntaxin and synaptobrevin, SNAP‑8 occupies the sites normally reserved for the N-terminal domain of SNAP-25, sterically hindering the formation of a functional SNARE complex.

This reversible modulation of neurotransmitter release, without the permanent blockade associated with botulinum toxin, makes SNAP-8 (200mg) research peptide a uniquely valuable tool for laboratories investigating exocytosis dynamics, synaptic protein interactions, and topical formulation science.

At Wuhan Top Miracle Peptides, we supply high‑purity SNAP-8 (200mg) research peptide to research institutions and wholesale buyers across the United Kingdom, France, Germany, Spain, Sweden, Italy, and the USA. Every batch is synthesised using solid‑phase peptide synthesis (SPPS), purified by preparative HPLC, and validated by mass spectrometry to meet rigorous quality standards. Each shipment includes a Certificate of Analysis (COA) confirming ≥99% purity, ensuring your studies into vesicle fusion, neuronal communication, or topical peptide science begin with uncompromising quality.

What Is SNAP‑8 and How Does It Work?

To fully appreciate the research potential of SNAP-8 (200mg) research peptide, it is essential to understand its biochemical design and the precise mechanism by which it modulates SNARE‑mediated exocytosis.

The Acetylated Octapeptide

SNAP‑8 is a synthetic acetylated octapeptide with the sequence Ac‑Glu‑Glu‑Met‑Gln‑Arg‑Arg‑Ala‑Asp‑NH₂. Its molecular formula is C₄₁H₇₀N₁₆O₁₆S, and its molecular weight is approximately 1075.16 g/mol. It has a CAS number of 868844-74-0.

The N‑terminal acetylation and C‑terminal amidation enhance the peptide’s stability and help it mimic native protein conformations. This architectural minimalism allows researchers to isolate and study a specific interaction motif without the complexity of the full SNAP‑25 protein, making it a powerful tool for structure‑function investigations.

Mechanism of Action: Competitive Inhibition of SNARE Complex Assembly

The biological activity of SNAP-8 (200mg) research peptide is rooted in its ability to disrupt a specific protein‑protein interaction:

• SNARE complex formation: The SNARE complex is a four-helical bundle essential for synaptic vesicle docking and fusion. It comprises synaptobrevin (VAMP) on the vesicle membrane, syntaxin-1 on the presynaptic membrane, and SNAP‑25 (which contributes two α‑helices) bridging the other proteins. Under normal conditions, these three proteins assemble in a coiled‑coil configuration that drives vesicle fusion and neurotransmitter release.

• Competitive binding: SNAP‑8 mimics the N‑terminal domain of SNAP‑25 (residues 1‑8) and competes with native SNAP‑25 for binding sites on syntaxin and synaptobrevin. It occupies the sites normally reserved for the N‑terminal domain of SNAP‑25, sterically hindering the formation of a functional SNARE complex.

• Modulation of neurotransmitter release: By disrupting SNARE complex assembly, SNAP‑8 reduces the efficiency of vesicle fusion, leading to reduced neurotransmitter release at the neuromuscular junction. This effect is reversible, distinguishing it from botulinum toxin, which irreversibly cleaves SNARE proteins.

Binding Affinity and Selectivity

Biophysical studies reveal that SNAP‑8 mimics the N-terminal sequence of SNAP‑25 (residues 1‑8), allowing it to bind syntaxin with high affinity (Kd ≈ 0.8 µM). This relatively strong binding, combined with the peptide’s stability and selective mechanism of action, makes SNAP‑8 a highly attractive tool for research models where controlled, reversible modulation of SNARE‑mediated exocytosis is desired.

Key Research Applications for SNAP-8 (200mg)

SNAP-8 (200mg) research peptide is a versatile tool with applications spanning several areas of biomedical and formulation science.

1. SNARE Complex & Vesicle Fusion Dynamics

The most fundamental application of SNAP‑8 lies in its ability to serve as a molecular probe for studying the SNARE complex itself. The SNARE machinery is central to nearly all vesicle‑mediated processes, yet its complexity makes it difficult to examine individual regions without substantial structural manipulation. SNAP‑8 offers researchers a simplified, controlled tool to investigate how specific motifs within SNAP‑25 contribute to:

• SNARE complex assembly and stabilisation

• Calcium‑dependent conformational shifts involved in vesicle priming

• The role of specific residues in syntaxin and synaptobrevin binding

• The kinetics of vesicle docking and fusion under varying conditions

By providing a well‑defined, stable mimic of a critical SNARE interaction domain, SNAP‑8 allows researchers to isolate and study motif‑level events that are otherwise difficult to observe.

2. Neuromuscular Junction & Neurotransmitter Release Models

The neuromuscular junction is a well‑characterised model system for studying exocytosis and synaptic transmission. SNAP‑8’s ability to reduce neurotransmitter release in a reversible, dose‑dependent manner makes it a valuable tool for:

• Modelling conditions of reduced neuromuscular transmission

• Investigating the relationship between neurotransmitter release intensity and downstream physiological outcomes

• Studying the long‑term effects of modulated exocytosis on cellular signalling

• Exploring the reversibility and recovery of SNARE‑mediated release after peptide exposure

Because SNAP‑8 acts downstream of calcium influx but upstream of vesicle fusion, it targets a distinct point in the exocytosis pathway, complementing other research tools that act at different stages.

3. Topical Neuropeptide & Formulation Development Research

In the field of topical formulation science, SNAP‑8 is studied as a model neuropeptide for its ability to interact with superficial neuromuscular signalling when applied topically. Research has explored:

• Comparative efficacy: A direct comparative study reported that SNAP‑8 demonstrated a 34.98% wrinkle depth reduction versus 27.05% for Argireline in 28‑day trials, representing a relative improvement of approximately 30%. SNAP‑8 is also reported to be approximately 30% more active than Argireline.

• Formulation stability and delivery: SNAP‑8 exhibits superior formulation stability (pH 5‑6, stable at room temperature for 1‑2 years), simplifying supply chains and enabling reproducible formulation across diverse research contexts. It is incorporated into various topical vehicles, including creams, serums, and microneedle patches, to study how formulation variables affect peptide stability, skin penetration, and bioavailability.

• Safety and tolerability: SNAP‑8 is considered safe for use in research formulations, with studies supporting its safety profile for non‑invasive procedures, making it a suitable comparator for next‑generation topical neuropeptides.

4. Protein‑Protein Interaction & Molecular Recognition Studies

Beyond its specific role in SNARE biology, SNAP‑8 serves as a model system for studying protein‑protein interactions more broadly. Research applications include:

• Investigating how short peptide fragments retain or modify the binding specificity of full‑length proteins

• Studying the structural requirements for high‑affinity binding between SNARE motifs

• Developing and validating computational models of protein‑peptide interactions

• Exploring the relationship between peptide sequence, conformation, and binding affinity

SNAP‑8’s compact, well‑defined structure makes it an ideal candidate for such studies, offering a reproducible and manipulable system.

Chemical & Physical Specifications

Accurate characterisation of SNAP-8 (200mg) research peptide is essential for reproducible experimental design. Below are the verified specifications from multiple research suppliers.

Note on Purity: The 200 mg mass refers to the weight of the peptide in its lyophilised form. SNAP‑8 is typically supplied as a TFA salt, which enhances aqueous solubility.

Reconstitution & Handling Protocol for SNAP-8 (200mg)

Proper reconstitution of SNAP-8 (200mg) research peptide is critical for maintaining its structural integrity and biological activity.

Step 1 – Preparation

• Bring the sealed SNAP‑8 vial and your chosen diluent (sterile bacteriostatic water or sterile PBS, pH 5‑7) to room temperature. Condensation can degrade the lyophilised powder.

• Clean your work surface with 70% ethanol and lay out sterile syringes, alcohol wipes and a clean work mat.

Step 2 – Vial Sanitisation

• Wipe the rubber stopper of the SNAP‑8 vial with a fresh 70% ethanol wipe. Allow the alcohol to evaporate completely before piercing.

Step 3 – Reconstitution

• Draw your desired volume of diluent into a sterile syringe. A common starting concentration for research applications is 200 mg per 20 mL of diluent, yielding a 10 mg/mL stock solution.

• Insert the needle and slowly inject the diluent against the inner glass wall. Do not spray directly onto the lyophilised powder.

• Gently swirl the vial until the solution is clear and fully dissolved. Do not shake vigorously, as shaking can cause denaturation.

Step 4 – Aliquoting & Storage

• Immediately after dissolution, aliquot the reconstituted SNAP‑8 into single‑use sterile vials.

• Store aliquots at –20°C. Avoid repeated freeze‑thaw cycles.

• Once thawed, store at 2‑8°C and use within 28 days.

Concentration Reference Table

Adjust diluent volume based on your experimental requirements. SNAP‑8 is fully soluble in water at these concentrations.

Storage & Stability Guidelines

Why Choose Wuhan Top Miracle Peptides for SNAP-8 (200mg)?

As an authentic licensed peptide supplier based in the United Kingdom, we supply SNAP-8 (200mg) research peptide and a wide range of research‑grade compounds under rigorous quality assurance protocols, fully aligned with Google’s E‑E‑A‑T standards (Experience, Expertise, Authoritativeness, Trustworthiness).

• Verified Purity: Independent HPLC analysis with purity guaranteed ≥99% for every batch.

• GMP‑Compliant Manufacturing: All peptides are synthesised in ISO 13485:2016 and GMP‑certified facilities, ensuring batch‑to‑batch consistency.

• Full Traceability: Batch‑specific Certificates of Analysis (COA) are available for every order.

• Wholesale Supply: We serve research institutions, laboratories, and wholesale buyers across the UK, EU, and USA with flexible volume pricing and reliable logistics.

• UK‑Based Regulatory Compliance: All products are supplied strictly as research‑grade chemicals for laboratory use only (RUO).

Researchers across the United Kingdom—including those at leading institutions in London, Cambridge, Oxford, Manchester, and Edinburgh—trust us for fast domestic delivery, transparent documentation and professional technical support.

FAQ: SNAP-8 (200mg) Research Peptide

What is SNAP-8 (200mg) research peptide?
SNAP‑8 (acetyl octapeptide‑3) is a synthetic acetylated octapeptide with the sequence Ac‑Glu‑Glu‑Met‑Gln‑Arg‑Arg‑Ala‑Asp‑NH₂. It is a mimic of the N‑terminal domain of SNAP‑25 and acts as a competitive inhibitor of SNARE complex assembly, modulating neurotransmitter release without permanent blockade.

What is the sequence and molecular weight of SNAP‑8?
The sequence is Ac‑Glu‑Glu‑Met‑Gln‑Arg‑Arg‑Ala‑Asp‑NH₂ (Ac‑EEMQRRAD‑NH₂). Its molecular formula is C₄₁H₇₀N₁₆O₁₆S, and its molecular weight is approximately 1075.16 g/mol.

What are the primary research applications for SNAP‑8?
SNAP‑8 is used in SNARE complex and vesicle fusion dynamics research, neuromuscular junction studies, topical neuropeptide formulation development, and protein‑protein interaction investigations.

What is the mechanism of action of SNAP‑8?
SNAP‑8 competitively binds to syntaxin and synaptobrevin, occupying the sites normally reserved for the N‑terminal domain of SNAP‑25. This sterically hinders the formation of a functional SNARE complex, reducing the efficiency of vesicle fusion and neurotransmitter release. The effect is reversible, distinguishing it from botulinum toxin.

What purity does your SNAP-8 (200mg) meet?
Our SNAP‑8 is tested to ≥99% purity by HPLC. A Certificate of Analysis (COA) is supplied with every order.

How should I reconstitute SNAP-8 (200mg)?
Reconstitute with sterile bacteriostatic water or sterile PBS (pH 5‑7). Allow the vial to reach room temperature, then slowly inject the diluent against the inner glass wall and swirl gently. Do not shake. A typical starting concentration is 10 mg/mL.

How should I store reconstituted SNAP‑8?
Reconstituted SNAP‑8 should be stored at 2‑8°C and used within 28 days. For longer storage, aliquot immediately into single‑use vials and store at –20°C for up to 3 months. Avoid repeated freeze‑thaw cycles.

Is SNAP-8 research peptide legal to purchase in the UK?
Yes. SNAP‑8 is a laboratory reagent sold for research use only (RUO). It is fully legal to purchase, possess, and use in the United Kingdom for legitimate in‑vitro or in‑vivo scientific research, provided it is not marketed with therapeutic claims.

Does Wuhan Top Miracle Peptides ship internationally?
Yes. We ship across the EU (France, Germany, Spain, Sweden, Italy) and to the USA from our UK warehouse. Wholesale pricing is available for bulk orders.

Wholesale SNAP-8 200mg Supply Across the UK and Europe

Wuhan Top Miracle Peptides supports wholesale peptide and cosmetic ingredient buyers in the United Kingdom and international markets.

We Support Enquiries From:

• United Kingdom
• France
• Germany
• Spain
• Sweden
• Italy
• USA
• Wider Europe

For larger SNAP-8 200mg enquiries, contact our team before ordering. This helps confirm stock, wholesale pricing, documentation, shipping options, and buyer requirements.

Where to Buy SNAP-8 200mg in the UK

If you are searching for where to buy SNAP-8 200mg in the UK, Wuhan Top Miracle Peptides provides a simple research-focused enquiry process.

How to Order

1. Review the SNAP-8 200mg product details.
2. Check the current label and batch information.
3. Confirm the INCI name or product identity from documentation.
4. Contact our team for availability.
5. Ask about COA and purity-related documentation.
6. Confirm your shipping country.
7. Discuss wholesale quantity requirements.
8. Place your enquiry with support from our team.

 

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From its role as a competitive inhibitor of SNARE complex assembly to its applications in studying vesicle fusion dynamics, neuromuscular signalling, and topical formulation science, SNAP-8 (200mg) research peptide offers a well‑characterised, precisely defined octapeptide platform for advanced molecular and formulation research. Its ability to reversibly modulate neurotransmitter release through a specific, high‑affinity interaction with syntaxin and synaptobrevin—supported by biophysical binding studies (Kd ≈ 0.8 µM) and comparative efficacy data demonstrating approximately 30% greater activity than Argireline—makes it a valuable addition to any laboratory investigating exocytosis pathways or topical peptide science.

By choosing high‑purity, lab‑verified SNAP-8 (200mg) research peptide from Wuhan Top Miracle Peptides, you ensure that your research is built on a foundation of quality, reproducibility, and scientific integrity.

Ready to advance your research with SNAP-8 (200mg)? Browse our product catalogue, request a wholesale quote, or contact our support team today to discuss your laboratory’s specific needs. Place your order now and receive GMP‑grade SNAP‑8 delivered directly to your facility in the UK, EU, or USA.