Melanotan 1 (Afamelanotide) Research Peptide

Synthetic Melanocortin Peptide for Melanocortin Receptor Research

1. What is Melanotan 1? (Identity Positioning)

Melanotan 1 (MT-1), also known as Afamelanotide, is a synthetic melanocortin peptide analogue derived from the biological activity of α-melanocyte-stimulating hormone (α-MSH).

It was designed as a research compound to investigate melanocortin receptor signaling pathways, particularly the interaction between synthetic peptide ligands and the melanocortin-1 receptor (MC1R) involved in pigmentation-related biological mechanisms.

Melanotan 1 is a modified α-MSH analogue containing structural substitutions that improve peptide stability and receptor activity compared with native α-MSH.

The peptide sequence is:

Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH₂

Key structural modifications include:

• Norleucine (Nle) substitution at position 4
• D-Phenylalanine (D-Phe) substitution at position 7
• C-terminal amidation

These modifications were developed to improve peptide stability and enhance melanocortin receptor interaction in experimental models.

2. Peptide Category Positioning

Peptide Classification:

Melanotan 1 belongs to the melanocortin peptide research class, a group of signaling peptides involved in studying:

• Receptor-ligand interactions
• Cellular signaling pathways
• Pigmentation biology
• Peptide structure-function relationships

3. Research Background & Development Logic

The development of Melanotan 1 was based on research into the physiological role of α-MSH, an endogenous peptide hormone involved in melanocortin signaling.

Native α-MSH has a short biological half-life due to enzymatic degradation. Researchers developed synthetic analogues to explore whether modified peptide structures could provide:

• Increased molecular stability
• Improved receptor selectivity
• Longer-lasting experimental activity
• Enhanced understanding of melanocortin pathways

Melanotan 1 represents a rational peptide engineering approach where specific amino acid modifications are introduced to study receptor activation mechanisms.

Research interest has focused on:

• MC1R activation models
• Melanogenesis pathways
• Peptide receptor binding studies
• Structure-activity relationships (SAR)

4. Research Findings

Melanocortin Receptor Interaction

Research studies have demonstrated that Melanotan 1 interacts with melanocortin receptors, especially MC1R, which plays an important role in regulating melanocyte signaling.

Experimental findings indicate that melanocortin receptor activation may influence:

• Intracellular cyclic AMP (cAMP) signaling
• Melanogenic enzyme expression
• Melanin synthesis pathways

Pigmentation Pathway Research

Studies involving melanocortin signaling have investigated the relationship between:

• MC1R activation
• MITF transcription regulation
• Tyrosinase activity
• Melanin biosynthesis

Melanotan 1 has been used as a molecular tool for understanding these biological processes.

Peptide Stability Research

Compared with native α-MSH, Melanotan 1 contains structural modifications designed to improve:

• Resistance to enzymatic breakdown
• Peptide stability
• Experimental reproducibility

5. Research Applications

Melanotan 1 is commonly investigated in laboratory research areas including:

1. Melanocortin Receptor Studies

Used in experimental models exploring:

• MC1R receptor activation
• Ligand-receptor interaction
• Signal transduction mechanisms

2. Pigmentation Biology Research

Research applications include investigation of:

• Melanocyte function
• Melanin synthesis mechanisms
• Cellular pigmentation pathways

3. Peptide Drug Discovery Research

Melanotan 1 serves as a reference compound for:

• Synthetic peptide development
• Structure-activity relationship studies
• Melanocortin pathway research

4. Cellular Signaling Research

Used in studies examining:

• GPCR signaling
• cAMP pathway activation
• Molecular mechanisms of peptide-receptor interactions

6. Safety Profile Analysis

Melanotan 1 is primarily studied as a research compound.

Available scientific research has investigated its interaction with melanocortin pathways; however, safety evaluation depends on:

• Experimental model
• Research conditions
• Purity level
• Formulation characteristics

Important research considerations include:

• Proper analytical characterization
• Controlled laboratory handling
• Appropriate storage conditions
• Avoidance of unauthorized applications

Researchers should evaluate peptide quality documentation before experimental use.

7. Final Product Positioning

Melanotan 1 Research Peptide

Positioning Statement:

Melanotan 1 is a synthetic melanocortin peptide analogue supplied for laboratory and scientific research applications involving melanocortin receptor biology, peptide signaling studies, and pigmentation-related molecular research.

Product characteristics:

• Synthetic peptide compound
• High analytical purity
• Lyophilized powder format
• Suitable for research workflows
• Supplied with analytical documentation

Typical research users include:

• Academic laboratories
• Biotechnology companies
• Pharmaceutical research organizations
• Peptide research facilities

8. Quality Documentation

Certificate of Analysis (COA)

Each batch can be supported by a Certificate of Analysis containing:

• Product identification
• Batch number
• Manufacturing date
• Purity analysis
• Quality specifications
• Testing results

HPLC Report

High-performance liquid chromatography (HPLC) analysis provides analytical verification of peptide purity.

Typical information includes:

• Chromatographic profile
• Main peptide peak identification
• Purity percentage
• Analytical conditions

Mass Spectrometry

Mass spectrometry testing confirms molecular identity through:

• Expected molecular mass verification
• Peptide identity confirmation
• Molecular weight analysis

Batch Documentation

Available batch records may include:

• Batch identification
• Manufacturing records
• Analytical testing documentation
• Quality control information
• Storage recommendations

9. Storage Information

Recommended storage conditions:

• Store lyophilized peptide at -20°C
• Protect from direct light exposure
• Keep away from moisture
• Store in a sealed container

After reconstitution:

• Store according to laboratory protocol requirements
• Maintain refrigerated conditions where appropriate
• Avoid repeated freeze-thaw cycles

Proper storage helps maintain peptide stability and analytical integrity.

10. Research Disclaimer

For research use only.

Not intended for human consumption.

Not intended for clinical or diagnostic use.

Melanotan 1 research peptide products are supplied exclusively for qualified laboratory research purposes. They are not marketed, approved, or supplied as medicines, dietary supplements, or products intended for human administration.

Researchers are responsible for ensuring compliance with applicable institutional, regional, and regulatory requirements.

11. Frequently Asked Questions (FAQ)

1. What is Melanotan 1 peptide used for in research?

Melanotan 1 is primarily studied as a synthetic melanocortin peptide analogue for investigating MC1R receptor activity, melanocortin signaling pathways, and pigmentation-related molecular mechanisms.

2. Is Melanotan 1 the same as Afamelanotide?

Melanotan 1 and Afamelanotide refer to the same peptide compound structure. Afamelanotide is the pharmaceutical development name associated with this melanocortin analogue.

3. What peptide family does Melanotan 1 belong to?

Melanotan 1 belongs to the melanocortin peptide family and functions as a synthetic analogue of α-MSH.

4. What analytical tests are available for Melanotan 1?

Research-grade Melanotan 1 may be supplied with analytical documentation including COA, HPLC purity testing, and mass spectrometry identity confirmation.

5. What is the molecular weight of Melanotan 1?

Melanotan 1 has an approximate molecular weight of 1646.87 Da.

6. How should Melanotan 1 peptide be stored?

Lyophilized Melanotan 1 should typically be stored at low temperature, protected from light and moisture to maintain peptide stability.

7. What research fields use Melanotan 1?

Research applications include melanocortin receptor studies, peptide signaling research, pigmentation biology, and synthetic peptide development.

8. Is Melanotan 1 approved for laboratory or clinical use?

Melanotan 1 research materials are supplied for laboratory investigation only and should not be considered approved products for human use, clinical treatment, or diagnostic applications.