N-Acetyl Epitalon Amidate is an N-terminally acetylated and C-terminally amidated synthetic peptide derived from the pineal bioregulator Epitalon. Investigated extensively in preclinical models, this modified tetrapeptide serves as a crucial tool for laboratory studies evaluating telomerase expression, telomere maintenance, and circadian rhythm regulation.
N-Acetyl Epitalon Amidate is an N-terminally acetylated and C-terminally amidated synthetic peptide derived from the pineal bioregulator Epitalon. Investigated extensively in preclinical models, this modified tetrapeptide serves as a crucial tool for laboratory studies evaluating telomerase expression, telomere maintenance, and circadian rhythm regulation.
N-Acetyl Epitalon Amidate is a synthetic tetrapeptide derivative (sequence: N-Acetyl-Ala-Glu-Asp-Gly-NH2) structurally modified from Epitalon (Epithalon) to enhance enzymatic resistance and molecular stability during laboratory experimentation. Investigated strictly as a peptide bioregulator, this compound is utilized in preclinical research to examine chromatin remodeling, telomerase reverse transcriptase (TERT) gene expression, telomere elongation, and pineal gland activity.
In cell culture and animal models, unmodified peptides often face rapid hydrolytic cleavage by circulating aminopeptidases and carboxypeptidases. By capping the N-terminus with an acetyl group and the C-terminus with an amide group, researchers can evaluate the biological activity of the core Ala-Glu-Asp-Gly motive over extended experimental timeframes without immediate enzymatic degradation. Investigators sourcing compounds via the PX1 Research catalog obtain fully characterized, high-purity reagents optimized for consistent in vitro and ex vivo assays.
As with all reagents supplied by PX1 Research, N-Acetyl Epitalon Amidate is synthesized exclusively for laboratory research use only. It is not intended for human consumption, therapeutic application, or clinical diagnostic procedures.
The baseline peptide Epitalon is a short synthetic tetrapeptide modeled after Epithalamin, a natural peptide extract isolated from the pineal gland. The specific chemical structure of standard Epitalon consists of L-alanine, L-glutamic acid, L-aspartic acid, and glycine. While effective in cellular assays, the free N-terminus and free C-terminus render the sequence vulnerable to rapid degradation by exopeptidases.
N-Acetyl Epitalon Amidate incorporates two distinct chemical modifications. The N-terminus undergoes acetylation (addition of an acetyl group, CH3CO-), effectively removing the positive charge of the free amine and blocking aminopeptidase recognition. Simultaneously, the C-terminus is amidated (conversion of the terminal carboxylic acid to a carboxamide group, -CONH2), eliminating the negative charge of the free carboxylate and protecting against carboxypeptidase activity.
These double-end modifications alter the physicochemical properties of the peptide, modifying its polar surface area, overall charge distribution, and lipophilicity. Preclinical literature notes that structural amidation and acetylation frequently alter peptide-membrane interactions and binding kinetics without compromising the core bioregulatory signaling cascades targeted by the baseline motif.
Bioregulators operate through sequence-specific interactions with genomic DNA, histones, and nuclear proteins. Preclinical studies suggest that short tetrapeptides like Ala-Glu-Asp-Gly enter cell nuclei and interact directly with specific promoter regions of DNA, inducing local chromatin decondensation.
In vitro data indicate that N-Acetyl Epitalon Amidate participates in epigenetic regulation by modulating histone acetylation levels and altering gene expression patterns associated with cellular aging. By binding to promoter motifs of specific genes, the peptide appears to reactivate silenced transcriptional sites, promoting the synthesis of proteins involved in cellular homeostasis.
Researchers studying transcription kinetics utilize N-Acetyl Epitalon Amidate to observe non-covalent DNA-peptide binding dynamics. Unlike large transcription factors, short bioregulatory peptides bypass complex cell-surface receptor pathways, providing a direct molecular mechanism for investigating transcriptional activation in senescent or stressed cell cultures within the broader framework of peptide bioregulator research.
A primary focus of research surrounding Epitalon derivatives is their interaction with telomerase, the ribonucleoprotein enzyme complex responsible for maintaining telomeric repeat sequences (TTAGGG) at the ends of eukaryotic chromosomes. Telomere shortening occurs progressively with each somatic cell division, eventually triggering replicative senescence or apoptosis when telomeres reach a critically short length.
In vitro assays using human somatic cell lines—such as fetal skin fibroblasts and endothelial cells—demonstrate that exposure to Epitalon motifs leads to the re-activation of the human telomerase reverse transcriptase (hTERT) gene. This transcriptional upregulation promotes telomerase activity, resulting in measurable telomere elongation and an increased hayflick limit in cultured cell populations.
Animal studies evaluating age-related biomarker dynamics further demonstrate that administration of telomerase-activating bioregulators correlates with reduced DNA damage markers, suppressed expression of senescence-associated beta-galactosidase (SA-beta-gal), and preserved chromosomal integrity in tissues subjected to oxidative stress.
The pineal gland plays a central role in regulating circadian rhythms, neuroendocrine coordination, and systemic antioxidant defenses through the rhythmic synthesis and secretion of melatonin. As organisms age, pineal gland function typically exhibits progressive involution, leading to blunted nocturnal melatonin peaks and altered sleep-wake bio-rhythms in preclinical animal models.
Preclinical studies show that pineal-derived peptide analogs induce structural and functional recovery in aged pineal tissue. In rodent assays, treatment with Epitalon derivatives restores night-time melatonin secretion to levels observed in younger control groups by upregulating key enzymes in the melatonin biosynthetic pathway, including serotonin N-acetyltransferase (AANAT).
Additionally, ex vivo tissue explant assays indicate that N-Acetyl Epitalon Amidate modulates expression patterns of core clock genes (such as CLOCK, BMAL1, PER2, and CRY1). This makes the compound a valuable tool for laboratory assays dissecting the molecular cross-talk between pineal peptides, suprachiasmatic nucleus signaling, and systemic bio-chronology.
When designing cellular longevity or gene expression experiments, investigators frequently compare modified bioregulators against their unmodified progenitors and complementary peptide sequences within the same functional class.
While standard Epitalon remains the historical benchmark for telomerase research, its unmodified terminal ends yield a short plasma half-life in in vivo rodent models. In contrast, N-Acetyl Epitalon Amidate offers superior resistance to plasma proteases, enabling longer incubations in serum-containing media. Meanwhile, tripeptide bioregulators such as Pinealon focus primarily on central nervous system protection and neuroproteomics, and selective senolytics like FOXO4-DRI target the apoptosis of senescent cells rather than telomerase-driven telomere maintenance.
The following matrix summarizes key structural and functional differences among primary bioregulators used in cellular aging research:
To ensure analytical reproducibility and prevent physical or chemical degradation, laboratory personnel must adhere to standardized handling protocols when reconstituting lyophilized N-Acetyl Epitalon Amidate.
Lyophilized peptide vials should be stored at -20°C or -80°C upon receipt, protected from light and moisture. Prior to reconstitution, vials must be equilibrated to room temperature in a desiccator to prevent condensation on the lyophilized cake. Reconstitution should be performed using sterile Bacteriostatic Water (0.9% benzyl alcohol) or sterile 0.9% Sodium Chloride injection grade solvent, depending on downstream assay requirements.
Gently direct the solvent down the glass vial wall rather than directly onto the lyophilized powder. Swirl the vial gently until full dissolution is achieved; aggressive vortexing or vigorous shaking should be avoided to prevent peptide denaturing or aggregation. Once reconstituted, stock solutions should be aliquoted into single-use polypropylene tubes and stored at -20°C or -80°C to minimize freeze-thaw cycles. Detailed reconstitution techniques are covered in our peptide reconstitution guide.
Experimental integrity depends entirely on the chemical purity, structural identity, and cleanliness of research reagents. Inconsistent purity or undetected endotoxin contamination can confound baseline data in cell culture and preclinical biochemical assays.
PX1 Research enforces strict batch-to-batch analytical verification for all compounds. Every lot of N-Acetyl Epitalon Amidate undergoes high-performance liquid chromatography (HPLC) to confirm high purity (typically ≥98%), combined with Electrospray Ionization Mass Spectrometry (ESI-MS) to verify precise molecular weight and structural identity. Detailed Certificate of Analysis (COA) documentation is made available for every lot.
Furthermore, compounds undergo chromogenic Limulus Amebocyte Lysate (LAL) testing to confirm low endotoxin levels (<0.01 EU/μg), ensuring suitability for sensitive cell culture assays. All PX1 products are manufactured in US-based GMP-compliant facilities and tested by independent ISO 17025 accredited laboratories. institutional facilities looking for bulk supply options can review our dedicated wholesale program.
What is the sequence and molecular weight of N-Acetyl Epitalon Amidate?
N-Acetyl Epitalon Amidate has the amino acid sequence N-Acetyl-Ala-Glu-Asp-Gly-NH2. Its chemical modifications include N-terminal acetylation and C-terminal amidation, giving it a modified molecular mass relative to unmodified Epitalon (390.35 g/mol).
How does N-Acetyl Epitalon Amidate differ from standard Epitalon?
N-Acetyl Epitalon Amidate features acetylated N-terminus and amidated C-terminus modifications. These structural changes protect the tetrapeptide from enzymatic cleavage by aminopeptidases and carboxypeptidases, extending its metabolic half-life in laboratory assays compared to unmodified Epitalon.
What preclinical pathways are researched with N-Acetyl Epitalon Amidate?
Research focuses on telomerase reverse transcriptase (hTERT) gene expression, telomere elongation, chromatin decondensation, pineal gland melatonin synthesis, and circadian gene expression (CLOCK, BMAL1).
How should lyophilized N-Acetyl Epitalon Amidate be stored in the lab?
Lyophilized vials should be stored at -20°C or -80°C in a dry, dark environment. Upon reconstitution, aliquot the solution to avoid repeated freeze-thaw cycles and store aliquots at -20°C or below.
What diluent is recommended for reconstituting N-Acetyl Epitalon Amidate?
Reconstitution is typically performed using sterile laboratory-grade Bacteriostatic Water or sterile 0.9% Sodium Chloride solution under sterile laminar flow hoods.
Does PX1 Research provide third-party analytical documentation?
Yes. Every lot of N-Acetyl Epitalon Amidate from PX1 Research includes a lot-specific Certificate of Analysis (COA) detailing RP-HPLC purity, ESI-MS mass identification, and LAL endotoxin testing results.
Is N-Acetyl Epitalon Amidate suitable for in vivo or human clinical use?
No. N-Acetyl Epitalon Amidate is supplied strictly as a research chemical for in vitro, ex vivo, and non-human preclinical laboratory research. It is not approved for human, clinical, or therapeutic use.
Where are PX1 Research peptides manufactured and shipped from?
PX1 Research peptides are manufactured in USA-based, GMP-compliant facilities and shipped directly from fulfillment centers located in California and Arizona with same-day shipping for orders placed before cutoff times M–F.
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.