Description
GHRP-2 Peptide – Research-Grade Growth Hormone Secretagogue for Advanced Scientific Research.
GHRP-2 Peptide is a synthetic growth hormone secretagogue consisting of the amino acid sequence D-Ala-D-(β-naphthyl)-Ala-Ala-Trp-D-Phe-Lys-NH₂. Developed as a second-generation member of the GHRP family, it has been extensively characterized in scientific literature for its selective interaction with the growth hormone secretagogue receptor type 1a (GHS-R1a), commonly known as the ghrelin receptor.
In laboratory settings, GHRP-2 Peptide is frequently employed to investigate receptor activation, intracellular signaling cascades, endocrine regulation, ligand-receptor kinetics, and peptide structure-function relationships. Its reproducible pharmacological characteristics make it an important reference compound for comparative studies involving other synthetic secretagogues and endogenous ghrelin signaling.
Researchers utilize GHRP-2 Peptide in receptor-binding assays, molecular biology experiments, cell culture models, and pharmacological investigations designed to evaluate peptide-mediated signal transduction and endocrine communication. The peptide’s extensive scientific documentation supports its continued use across academic institutions, biotechnology organizations, and pharmaceutical research laboratories.
Appex Peptide Lab provides high-purity research-grade GHRP-2 Peptide manufactured under strict quality control procedures and accompanied by comprehensive analytical documentation for dependable laboratory performance.
For research use only. Not intended for human consumption or clinical use.
Key Research Highlights
- High-purity synthetic hexapeptide for laboratory research
- Verified amino acid sequence for experimental consistency
- Selective agonist of the GHS-R1a receptor
- Extensively studied in endocrine and receptor biology
- Suitable for neuroendocrine signaling investigations
- Commonly used in receptor-binding and pharmacology assays
- Supports studies involving intracellular calcium signaling
- Stable lyophilized formulation for laboratory storage
- Manufactured with rigorous analytical quality standards
- Certificate of Analysis (COA) available
- Excellent batch-to-batch reproducibility
- Intended exclusively for scientific laboratory applications
Why Researchers Choose This Product
- High analytical purity for reliable experimental outcomes
- Well-characterized in peer-reviewed scientific literature
- Strong receptor selectivity for GHS-R1a investigations
- Ideal for molecular pharmacology research
- Consistent manufacturing quality across batches
- Comprehensive analytical verification available
- Suitable for biotechnology, pharmaceutical, and academic laboratories
- Excellent stability in lyophilized form
- Available in multiple laboratory research sizes
- For research use only. Not intended for human consumption or clinical use.
Research Applications

GHS-R1a Receptor Pharmacology
GHRP-2 Peptide is widely used to investigate receptor activation, ligand affinity, receptor internalization, and downstream signaling mechanisms associated with the growth hormone secretagogue receptor.
Neuroendocrine Research
Researchers utilize GHRP-2 Peptide to study hormonal communication, neuropeptide regulation, pituitary signaling, and endocrine network interactions under controlled laboratory conditions.
Intracellular Signal Transduction
The peptide supports investigations involving phospholipase C activation, phosphoinositide metabolism, intracellular calcium mobilization, protein kinase C signaling, and MAPK pathway regulation.
Molecular Pharmacology
GHRP-2 Peptide is frequently incorporated into studies evaluating receptor kinetics, agonist potency, ligand specificity, peptide-receptor interactions, and comparative pharmacological profiling.
Cell Culture Studies
Suitable for in vitro experiments using recombinant cell systems and endocrine-derived cell lines to characterize receptor-mediated cellular responses and downstream molecular events.
Drug Discovery Research
Biotechnology and pharmaceutical laboratories employ GHRP-2 Peptide during assay development, receptor screening, compound validation, and peptide characterization programs.
Product Specifications
| Specification | Details |
|---|---|
| Purity | ≥99% (HPLC verified) |
| Molecular Formula | C₄₅H₅₅N₉O₆* |
| Molecular Weight | Approximately 817.98 g/mol* |
| CAS Number | 158861-67-7 |
| Appearance | White to off-white lyophilized powder |
| Storage Conditions | Store lyophilized peptide at -20°C. Following reconstitution, store according to validated laboratory protocols and avoid repeated freeze-thaw cycles. |
| Solubility | Soluble in sterile laboratory-grade water or appropriate aqueous research buffer |
| Sequence | D-Ala-D-(β-naphthyl)-Ala-Ala-Trp-D-Phe-Lys-NH₂ |
| Available Sizes | 5 mg, 10 mg, 15 mg |
*Values may vary slightly depending on salt form (e.g., acetate).
Mechanism of Action
GHRP-2 Peptide is a synthetic hexapeptide that functions as a potent agonist of the growth hormone secretagogue receptor type 1a (GHS-R1a), a G protein-coupled receptor naturally activated by the endogenous peptide hormone ghrelin. Owing to its high receptor affinity and reproducible signaling profile, GHRP-2 Peptide is extensively employed in laboratory research investigating endocrine regulation, receptor pharmacology, intracellular signaling, and peptide-receptor interactions.
Upon binding to GHS-R1a, GHRP-2 Peptide primarily activates Gq/11-dependent signaling, stimulating phospholipase C (PLC). PLC hydrolyzes phosphatidylinositol 4,5-bisphosphate (PIP₂), generating the intracellular second messengers inositol 1,4,5-trisphosphate (IP₃) and diacylglycerol (DAG). IP₃ promotes the release of calcium ions from intracellular endoplasmic reticulum stores, while DAG activates protein kinase C (PKC). Together, these signaling events regulate calcium-dependent exocytosis, protein phosphorylation, transcription factor activation, and numerous downstream molecular responses examined in endocrine research.
Experimental studies have also demonstrated activation of additional intracellular signaling pathways including ERK1/2 (MAPK), PI3K/Akt, and calcium/calmodulin-dependent signaling networks. These pathways are investigated for their roles in receptor desensitization, signal amplification, intracellular trafficking, transcriptional regulation, and peptide-mediated cellular communication.
Unlike growth hormone-releasing hormone (GHRH), which predominantly activates the cyclic AMP (cAMP)-protein kinase A (PKA) pathway, GHRP-2 Peptide utilizes phosphoinositide-dependent signaling mechanisms. Researchers frequently compare these distinct receptor systems to understand complementary signaling networks, receptor crosstalk, and integrated endocrine regulation within experimental models.
GHRP-2 Peptide is also widely used in receptor-binding assays, structure-activity relationship studies, ligand affinity analyses, biased agonism research, and investigations of receptor conformational dynamics. Its defined molecular structure and extensive scientific characterization make it a valuable reference compound for modern molecular pharmacology, neuroendocrinology, peptide chemistry, and drug discovery research.
For research use only. Not intended for human consumption or clinical use.




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