Sourcing analytical-grade Vilon (Lys-Glu) for cellular immunology and epigenetic research requires strict verification of peptide purity, structural identity, and endotoxin limits. PX1 Research provides US-manufactured Vilon with batch-specific Certificates of Analysis, RP-HPLC assay verification, and mass spectrometry validation for standardized laboratory investigations.
Sourcing analytical-grade Vilon (Lys-Glu) for cellular immunology and epigenetic research requires strict verification of peptide purity, structural identity, and endotoxin limits. PX1 Research provides US-manufactured Vilon with batch-specific Certificates of Analysis, RP-HPLC assay verification, and mass spectrometry validation for standardized laboratory investigations.
To buy Vilon for lymphocyte activity research from a verified supplier, research institutions require analytical-grade Lys-Glu dipeptide characterized by reverse-phase high-performance liquid chromatography (RP-HPLC) and electrospray ionization mass spectrometry (ESI-MS). PX1 Research supplies high-purity Vilon synthesized in USA-based, ISO 17025-accredited and GMP-compliant facilities. Every production lot includes a comprehensive Certificate of Analysis (COA) detailing purity exceeding 98%, exact molecular mass, and quantitative endotoxin testing (<0.05 EU/mg) to ensure reproducible experimental outcomes in cell culture and preclinical models.
When designing experiments around immune senescence, chromatin accessibility, or lymphocyte proliferation, using fully validated research peptides eliminates confounding variables introduced by residual synthesis reagents, TFA salts, or bacterial lipopolysaccharides. Researchers can access batch-specific documentation and bulk institutional fulfillment directly through the PX1 Research portal.
Vilon is a ultra-short synthetic bioregulatory peptide composed of two L-amino acid residues: L-lysyl-L-glutamic acid (sequence: H-Lys-Glu-OH). With a molecular formula of C11H21N3O5 and a nominal molecular weight of 275.30 g/mol, Vilon represents one of the simplest functional peptide motifs studied within the Khavinson peptide paradigm.
The primary chemical interest in Vilon stems from its ionic charge distribution at physiological pH. The basic epsilon-amino group of the N-terminal lysine residue and the acidic gamma-carboxylic acid group of the C-terminal glutamic acid allow the molecule to engage in precise electrostatic interactions with nucleic acid structures and nuclear proteins. Preclinical studies indicate that this low-molecular-weight sequence can cross biological membranes without requiring specialized transporter systems, facilitating direct nuclear translocation in targeted cell lines.
In contrast to longer polypeptide chains, short dipeptides like Lys-Glu exhibit high thermodynamic stability in solution when stored at appropriate temperatures. However, maintaining peptide integrity requires protection from enzymatic hydrolysis and improper pH shifts during experimental preparation. Reviewing detailed structural analysis in our research library provides further context on short-chain peptide kinetics.
The primary theoretical mechanism governing Vilon activity centers on epigenetic regulation within nuclear chromatin. In vitro and cell-free assay models suggest that short peptide sequences, specifically Lys-Glu, possess the capacity to bind directly to specific double-stranded DNA motifs—predominantly within major and minor grooves of heterochromatin regions.
In preclinical models of cellular aging and senescence, heterochromatin often undergoes hyper-condensation, leading to transcriptional silencing of essential regulatory genes. Spectroscopic and computational docking studies demonstrate that Vilon can induce local de-condensation of condensed chromatin (heterochromatin despiralization). This conformational shift increases the accessibility of promoter regions to RNA polymerase complexes and transcription factors.
Furthermore, Lys-Glu has been documented in cell culture models to modulate histone acetylation states. By altering histone-DNA electrostatic interactions, Vilon activation leads to altered expression profiles of genes governing cellular proliferation, ribosomal RNA synthesis, and antioxidant defense enzyme pathways. Researchers examining chromatin remodeling dynamics frequently reference these short-chain interactions when evaluating genome-wide expression changes.
Scientific literature evaluating Vilon in preclinical models primarily focuses on immunomodulatory pathways within T-lymphocyte and splenocyte populations. Age-related involution of thymic tissue results in progressive decline of naive T-cell output, altered cytokine secretion profiles, and reduced proliferative capacity upon antigen challenge.
In vitro assays using cultured human peripheral blood lymphocytes (PBMCs) and murine splenocytes have demonstrated that exposure to Vilon restores proliferative markers in senescent cell cohorts. Specifically, researchers have observed increased synthesis of interleukin-2 (IL-2) and enhanced expression of IL-2 receptor subunits following incubation with micromolar concentrations of Lys-Glu dipeptide.
Animal studies involving model organisms (such as aging C57BL/6 mice and Wistar rats) report that administration of Vilon is associated with normalized subpopulation ratios of CD4+ to CD8+ T-cells, reduced spontaneous chromosome aberration rates in bone marrow cells, and attenuated oxidative stress markers. These findings position Vilon as a key investigative agent in studies addressing immunosenescence, DNA damage response pathways, and thymic function restoration. Detailed analyses of related immunological protocols are cataloged in our guide to thymic peptides and immune senescence.
Understanding where Vilon fits within the broader landscape of regulatory peptides requires direct comparison against other thymic-derived and bioregulatory compounds. While complex extracts contain heterogeneous polypeptide mixtures, synthetic short peptides offer precise chemical definition and reproducibility.
Below is a structural and functional comparative overview of key bioregulatory research compounds:
• **Vilon (Lys-Glu):** A synthetic dipeptide targeting chromatin structure, gene expression pathways, and T-lymphocyte activity markers. Its minimal size permits rapid cellular uptake and targeted nuclear interaction. • **Epitalon (Ala-Glu-Asp-Gly):** A synthetic tetrapeptide primarily investigated for telomerase activation, pineal gland regulation, and chromatin remodeling in aging models. • **Thymalin:** A composite thymic peptide fraction containing multiple native peptide sequences used to evaluate broad systemic immune restoration in preclinical animal models. • **Thymosin Alpha-1:** A 28-amino acid polypeptide targeting T-cell maturation, dendritic cell activation, and toll-like receptor signaling pathways.
While longer peptides like Thymosin Alpha-1 trigger specific surface membrane receptor cascades, short dipeptides such as Vilon operate primarily through direct epigenetic and transcriptional mechanisms. This functional distinction makes Lys-Glu an essential tool for comparative studies examining direct genomic versus receptor-mediated signaling pathways.
Procuring research-grade peptides for cell culture or preclinical models requires rigorous quality assurance. Impurities introduced during solid-phase peptide synthesis (SPPS)—such as truncated sequences, deleted amino acid fragments, residual cleavage reagents (TFA), or organic solvents—can severely distort assay results and yield false cytotoxicity data.
PX1 Research enforces strict analytical standards for every lot of Vilon distributed to academic and industrial laboratories:
1. **Reverse-Phase HPLC (RP-HPLC):** Chromatographic analysis confirms peptide purity levels exceeding 98.0%. RP-HPLC isolates the main Lys-Glu peak from side-products, ensuring minimal chemical noise in downstream assays. 2. **Electrospray Ionization Mass Spectrometry (ESI-MS):** ESI-MS verifies the exact molecular mass (275.3 g/mol [M+H]+) and isotopic distribution, confirming structural identity free of deletion sequences. 3. **Endotoxin Quantification (LAL Assay):** Cell-based lymphocyte assays are exceptionally sensitive to bacterial endotoxins (lipopolysaccharides). High endotoxin contamination induces non-specific cytokine release and cell activation, rendering experimental data invalid. PX1 Research tests every batch using chromogenic Limulus Amebocyte Lysate (LAL) testing to guarantee endotoxin levels remain below 0.05 EU/mg. 4. **Counter-Ion Determination and Lyophilization:** Peptides are controlled for trifluoroacetate (TFA) content to prevent non-specific cellular toxicity in fragile primary lymphocyte cultures.
Supplier integrity depends on transparent, verifiable laboratory data. PX1 Research operates under strict quality management protocols where every single lot undergoes independent, third-party testing at accredited ISO 17025 testing facilities based in the United States.
We reject the practice of relying on manufacturer self-certification or outdated template COAs. Every shipment of Vilon matches a batch-specific COA that includes raw HPLC chromatograms, mass spectra, and quantitative endotoxin measurement data. Principal investigators can verify lot numbers online prior to initiating sensitive in vitro or in vivo trials.
For institutions operating under high-throughput requirements or grant-funded research parameters, custom bulk ordering and lot reservation services are available through our wholesale laboratory account program.
To preserve chemical stability and biological activity, researchers must adhere to standardized laboratory reconstitution and handling procedures for lyophilized peptides.
• **Lyophilized Storage:** Lyophilized Vilon powder should be stored at -20°C or -80°C upon receipt for long-term stability. The dry powder remains stable under desiccated conditions, minimizing hydrolytic degradation over extended periods. • **Reconstitution Parameters:** Reconstitution should occur in sterile, endotoxin-free water or sterile phosphate-buffered saline (PBS, pH 7.4). Avoid high-shear vortexing; gentle inversion or room-temperature equilibration allows complete dissolution due to the high solubility of short dipeptides. • **Working Aliquots:** Once reconstituted in aqueous buffer, peptide solutions should be divided into single-use working aliquots and stored at -80°C to prevent repeated freeze-thaw cycles. Repeated temperature fluctuations accelerate peptide bond cleavage and solution degradation. • **Assay Concentration:** For cell culture studies, working concentrations typically range from 0.01 µM to 10 µM, depending on the specific primary lymphocyte or transformed cell line model under investigation.
When incorporating Vilon into experimental frameworks, researchers frequently utilize specific assay designs to quantify cellular response and nuclear interaction. A summary of standard research protocols in published literature includes:
**1. Proliferation and Viability Assays:** Primary T-lymphocyte cultures isolated via density gradient centrifugation are treated with varying concentrations of Lys-Glu. Proliferative response is quantified using WST-1, MTT, or CFSE dye dilution assays following mitogenic stimulation (e.g., Concanavalin A or anti-CD3/CD28 antibodies).
**2. Chromatin Accessibility Assays:** To evaluate epigenetic remodeling, researchers utilize ATAC-seq (Assay for Transposase-Accessible Chromatin using sequencing) or DNase I hypersensitivity assays. These techniques map genome-wide changes in open chromatin structure following dipeptide incubation.
**3. Gene Expression Profiling:** RT-qPCR and RNA-sequencing protocols assess transcript abundance for regulatory markers including IL-2, IFN-gamma, SOD2, and hTERT in treated versus control cell cohorts.
Researchers seeking detailed technical notes regarding short peptide interactions can review our analytical technical briefs in the short-chain dipeptides research archive.
PX1 Research is committed to advancing scientific inquiry by supplying domestic, ultra-pure research peptides manufactured under rigorous quality control standards. Operating out of primary distribution hubs in California and Arizona, PX1 Research provides rapid same-day dispatch (Monday through Friday) to eliminate supply chain friction for academic labs, biotech firms, and contract research organizations.
By enforcing mandatory HPLC-MS purity validation, stringent endotoxin caps, and full lot traceability, PX1 Research eliminates product variability so investigators can focus entirely on reproducible scientific discovery. Browse our full catalog to buy Vilon or explore our complete inventory of research peptides for laboratory application.
What is the primary keyword intent when researchers buy Vilon from a supplier?
Researchers purchasing Vilon (Lys-Glu) are seeking high-purity, analytical-grade dipeptide material for in vitro cell culture, epigenetic chromatin assays, and preclinical lymphocyte activity models.
What analytical purity standards does PX1 Research guarantee for Vilon?
PX1 Research guarantees a minimum purity of 98.0% as determined by Reverse-Phase HPLC, with mass identity confirmed via ESI-MS and endotoxin levels tested below 0.05 EU/mg.
Why is low endotoxin content crucial for Vilon lymphocyte research?
Bacterial endotoxins (LPS) cause non-specific immune activation and inflammatory cytokine release in cultured lymphocytes, which invalidates baseline data in immunomodulatory and gene expression experiments.
How should Vilon dipeptide be reconstituted for in vitro assays?
Vilon should be reconstituted using sterile, endotoxin-free water or PBS (pH 7.4). The solution should be gently inverted and divided into single-use aliquots stored at -80°C to avoid freeze-thaw degradation.
What is the molecular weight and sequence of Vilon?
Vilon is a synthetic dipeptide with the sequence L-lysyl-L-glutamic acid (H-Lys-Glu-OH), a molecular formula of C11H21N3O5, and a molecular weight of 275.30 g/mol.
How does Vilon differ from Epitalon or Thymalin?
Vilon is a two-amino-acid dipeptide (Lys-Glu) focusing primarily on chromatin despiralization and lymphocyte proliferation. Epitalon is a tetrapeptide (Ala-Glu-Asp-Gly) studied for telomerase modulation, while Thymalin is a complex multi-peptide thymic extract.
Where does PX1 Research ship Vilon orders from?
All PX1 Research compounds are manufactured in US facilities and shipped directly from fulfillment centers in California and Arizona, offering same-day dispatch for orders placed Monday through Friday.
Is Vilon supplied by PX1 Research permitted for human clinical use?
No. All products supplied by PX1 Research, including Vilon, are strictly intended for laboratory research, in vitro assays, and preclinical animal investigation. They are not for human consumption, clinical use, or therapeutic administration.
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.