Pinealon (Glu-Asp-Arg) is a synthetic short tripeptide bioregulator actively investigated for its influence on neuronal cell survival, gene expression, and oxidative stress pathways. Designed exclusively for laboratory research use, this compound serves as a primary tool for evaluating epigenetic mechanisms and cytoprotection in vitro.
Pinealon (Glu-Asp-Arg) is a synthetic short tripeptide bioregulator actively investigated for its influence on neuronal cell survival, gene expression, and oxidative stress pathways. Designed exclusively for laboratory research use, this compound serves as a primary tool for evaluating epigenetic mechanisms and cytoprotection in vitro.
Pinealon is a synthetic short peptide bioregulator composed of three amino acid residues: L-glutamic acid, L-aspartic acid, and L-arginine (Glu-Asp-Arg or EDR). Investigated primarily within neurobiology and cellular physiology, the Pinealon research compound is evaluated in laboratory settings for its potential interactions with nuclear chromatin, gene expression profiles, and cellular responses to induced oxidative stress in neuronal culture models.
As part of the broader class of short-chain peptide bioregulators, Pinealon is synthesized to study how ultra-short peptide sequences permeate cell membranes and nuclear envelopes without requiring active transport receptors. Preclinical literature indicates that tripeptides like Glu-Asp-Arg may bind directly to specific histone motifs or DNA promoter regions, altering chromatin structure and transcriptional activity in vitro.
The primary sequence of Pinealon—H-Glu-Asp-Arg-OH—yields a molecular formula of C15H26N6O8 and a low molecular weight of approximately 390.39 g/mol. This low molecular mass is critical to its physical characteristics, granting high solubility in aqueous buffer systems and enabling high passive diffusion rates across cellular membranes during in vitro assays.
The combination of acidic residues (glutamic acid and aspartic acid) alongside a basic, positively charged residue (arginine) endows the molecule with a unique zwitterionic balance at physiological pH. In structural biology experiments, researchers analyze how these electrostatic properties facilitate hydrogen bonding and ionic interactions with double-stranded DNA structures and chromatin-associated proteins.
In vitro models utilizing primary neuronal cultures and continuous cell lines (such as PC12 and SH-SY5Y) have examined Pinealon under conditions of induced hypoxia, excitotoxicity, and reactive oxygen species (ROS) exposure. Preclinical studies suggest that pre-incubation of cell cultures with Glu-Asp-Arg reduces markers of necrosis and apoptosis following oxidative insult, maintaining mitochondrial membrane potential and ATP production levels.
Additional laboratory assays involving rodent models of brain ischemia demonstrate that short tripeptides may suppress excessive lipid peroxidation and restore enzymatic antioxidant activity, including superoxide dismutase (SOD) and glutathione peroxidase. Research published in the PX1 Research library highlights how these observations position Pinealon as a baseline compound for investigating endogenous neuroprotective pathways.
A central focus of research surrounding short bioregulatory peptides is their capacity to alter epigenetic regulation. In cellular aging models, Investigators observe that Glu-Asp-Arg can interact with chromatin fragments, modulating histone acetylation levels and influencing the accessibility of specific promoter sites to RNA polymerase II.
Microarray analyses and quantitative PCR assays in cell-free systems reveal that Pinealon exposure correlates with altered expression profiles of genes governing cellular survival, heat shock responses, and neurotrophic factor signaling. In vitro data indicate that these peptide-DNA interactions are sequence-specific, demonstrating that minor alterations to the Glu-Asp-Arg sequence abolish its site-specific binding characteristics.
Cellular senescence is characterized by irreversible cell cycle arrest, altered metabolic activity, and increased secretion of pro-inflammatory signals. In models of cellular aging, research teams evaluate Pinealon to determine its effect on the rate of telomere shortening, expression of p53/p21 checkpoint proteins, and accumulation of lipofuscin pigments in non-dividing neuronal tissues.
In vitro findings suggest that tripeptide bioregulators may maintain cell viability across extended passages by preserving genomic stability and downregulating hyper-activated apoptotic pathways. These findings make Glu-Asp-Arg a critical control sequence when benchmarking novel synthetic compounds across cell culture models of accelerated senescence.
To understand the unique mechanism of Pinealon, researchers frequently compare its biochemical profile to other neuro-active and bioregulatory peptides. While Pinealon (Glu-Asp-Arg) acts as a ultra-short tripeptide targeting basic gene expression and oxidative stress pathways in neural tissue, Epithalon (Ala-Glu-Asp-Gly) is a tetrapeptide bioregulator primarily studied for its role in telomerase activation and endocrine regulation in pineal gland models.
In contrast, complex bioregulatory mixtures such as Cortexin consist of heterogeneous polypeptide fractions derived from animal nervous tissue, offering a multi-target profile rather than a single, defined tripeptide sequence. Furthermore, synthetic neuropeptides like Semax operate through distinct heptapeptide formulations designed to modulate neurotrophin receptors and central neurotransmitter degradation pathways. Comparative studies across this entire catalog of synthetic peptides help laboratories differentiate between broad epigenetic signaling and receptor-mediated neuropharmacology.
For accurate in vitro experimentation, proper reconstitution protocols must be strictly maintained. Lyophilized Pinealon powder should be reconstituted using sterile, laboratory-grade solvents such as Bacteriostatic Water (0.9% benzyl alcohol) or sterile Phosphate-Buffered Saline (PBS, pH 7.4) under a laminar flow hood to maintain aseptic conditions.
Researchers should gently swirl or invert the vial until the lyophilized cake is fully dissolved. Vigorous vortexing or high-shear agitation should be avoided to prevent protein shearing or mechanical aggregation. Once reconstituted, stock solutions can be aliquoted into sterile microcentrifuge tubes to prevent repeated freeze-thaw cycles prior to working assays.
Lyophilized Pinealon should be stored at -20°C in a dry, dark environment to maintain long-term stability and prevent moisture absorption. Desiccant packs are recommended inside storage containers to protect against ambient humidity, which can degrade the peptide matrix over prolonged periods.
Reconstituted liquid aliquots are stable at 2°C to 8°C for short-term evaluation (typically 7–14 days). For longer experimental timelines, aliquots must be frozen at -80°C. Researchers working on high-throughput screens or continuous cell culture models should order through dedicated bulk research accounts to ensure lot consistency across long-range studies.
Reliable scientific literature depends on absolute peptide purity and chemical identity. PX1 Research enforces rigorous quality control protocols for every batch of Pinealon, subjecting each lot to high-performance liquid chromatography (HPLC) and mass spectrometry (MS) testing in an ISO 17025 accredited facility.
Reverse-Phase HPLC (RP-HPLC) verifies that chemical purity meets or exceeds 99.0%, ensuring the absence of deletion sequences, truncated peptides, or residual synthesis reagents. Electrospray Ionization Mass Spectrometry (ESI-MS) confirms the exact molecular weight (390.39 Da), guaranteeing lot-to-lot consistency. Furthermore, every batch undergoes LAL assay testing to confirm endotoxin levels remain below 0.1 EU/mg, preventing confounding inflammatory responses in sensitive cell lines.
PX1 Research is dedicated to providing laboratories with verified, high-purity research compounds manufactured entirely within the USA under GMP-compliant facility standards. Every shipment includes lot-specific Certificate of Analysis (COA) documentation detailing full chemical purity, mass verification, and endotoxin safety metrics.
To prevent project delays, PX1 Research provides same-day dispatch for orders placed Monday through Friday, shipping directly from distribution centers located in California and Arizona. This reliable logistics network ensures that temperature-sensitive research compounds arrive rapidly and intact to support academic, industrial, and clinical research facilities.
What is the primary chemical structure of Pinealon?
Pinealon is a synthetic tripeptide bioregulator with the amino acid sequence L-glutamic acid, L-aspartic acid, and L-arginine (Glu-Asp-Arg or EDR) and a molecular weight of approximately 390.39 g/mol.
Is Pinealon approved for clinical treatment or human consumption?
No. Pinealon is strictly a research compound intended exclusively for laboratory, in vitro, and preclinical experimental applications. It is not for human or animal consumption, medical treatment, or diagnostic use.
How should lyophilized Pinealon be reconstituted for laboratory assays?
Lyophilized Pinealon should be reconstituted in a sterile laminar flow cabinet using sterile phosphate-buffered saline (PBS) or bacteriostatic water. The vial should be gently inverted until complete solution is achieved without violent vortexing.
What storage conditions maintain the stability of Pinealon?
Unopened, lyophilized Pinealon should be stored at -20°C or -80°C in a desiccated environment. Reconstituted liquid stock solutions should be aliquoted and stored at -80°C to avoid repeated freeze-thaw cycles.
How does PX1 Research verify the purity of Pinealon?
PX1 Research verifies every lot through independent ISO 17025 accredited laboratory testing using RP-HPLC for purity (>99%), ESI-MS for structural confirmation, and LAL assays to ensure endotoxins remain under 0.1 EU/mg.
How does Pinealon differ from Epithalon?
Pinealon is a tripeptide (Glu-Asp-Arg) focused heavily on neuronal oxidative stress and gene expression models, whereas Epithalon is a tetrapeptide (Ala-Glu-Asp-Gly) studied primarily for telomerase induction and endocrine pineal regulation.
What are the endotoxin limits for PX1 Research compounds?
All PX1 Research peptides, including Pinealon, are tested for endotoxins using chromogenic LAL assays to ensure levels are below 0.1 EU/mg, preventing non-specific cellular immune responses in experimental assays.
Where does PX1 Research ship Pinealon from?
PX1 Research manufactures its compounds in the USA and dispatches orders same-day (M-F) from fulfillment facilities located in California and Arizona.
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.