Livagen For Sale
PX1 Research provides laboratory-grade Livagen (Lys-Glu-Asp-Ala) manufactured in the USA under rigorous quality control standards. Designed strictly for in vitro and preclinical research applications, every lot undergoes third-party verification via RP-HPLC, mass spectrometry, and endotoxin assays to ensure absolute consistency across experimental runs.
Quick answer
PX1 Research provides laboratory-grade Livagen (Lys-Glu-Asp-Ala) manufactured in the USA under rigorous quality control standards. Designed strictly for in vitro and preclinical research applications, every lot undergoes third-party verification via RP-HPLC, mass spectrometry, and endotoxin assays to ensure absolute consistency across experimental runs.
Key takeaways
- When procuring high-purity Livagen for sale, laboratory researchers require validated purity, lot-specific analytical documentation, and reliable domestic distribution.
- Livagen is a synthetic tetrapeptide consisting of L-amino acid residues arranged in the sequence L-lysyl-L-glutamyl-L-aspartyl-L-alanine (Lys-Glu-Asp-Ala; KEDA).
- Preclinical investigations into Livagen focus primarily on epigenetic modulation, nuclear architecture, and chromatin condensation state.
- In bioregulatory peptide research, Livagen is frequently evaluated alongside structurally related short peptides to map sequence-activity relationships.
Sourcing Livagen for Sale: Executive Summary for Laboratory Procurement
When procuring high-purity Livagen for sale, laboratory researchers require validated purity, lot-specific analytical documentation, and reliable domestic distribution. Livagen (Lys-Glu-Asp-Ala) is a short synthetic bioregulatory peptide evaluated in preclinical models for its interactions with chromatin structure and gene expression. PX1 Research supplies USA-manufactured, research-grade Livagen (>99% purity verified via RP-HPLC and mass spectrometry) for strictly in vitro and preclinical laboratory applications.
To ensure experimental reproducibility, research facilities must avoid unverified reagents that contain synthesis side-products or bacterial contaminants. Every batch of Livagen for sale from PX1 Research is backed by a lot-specific Certificate of Analysis (COA) issued by an independent ISO 17025 accredited laboratory, guaranteeing zero fillers, accurate sequence identity, and endotoxin levels below strict threshold limits.
Chemical Identity and Structural Profile of Livagen
Livagen is a synthetic tetrapeptide consisting of L-amino acid residues arranged in the sequence L-lysyl-L-glutamyl-L-aspartyl-L-alanine (Lys-Glu-Asp-Ala; KEDA). It possesses a molecular formula of C18H31N5O9 and a theoretical molecular weight of approximately 461.47 g/mol. As a carboxyl- and amine-containing short-chain peptide, Livagen exhibits high aqueous solubility under neutral pH conditions.
In structural biology, Livagen belongs to the class of short bioregulatory peptidomimetics originally designed to model nuclear chromatin interactions. Unlike long-chain proteins, short peptide sequences like Livagen display minimal secondary or tertiary folding in solution, allowing their side-chain functional groups to interact directly with targeted biological molecules in cell culture and cell-free assay environments. Researchers interested in structural analogs can review our broader catalog of short-chain bioregulatory peptides.
Preclinical Literature and Molecular Mechanisms of Action
Preclinical investigations into Livagen focus primarily on epigenetic modulation, nuclear architecture, and chromatin condensation state. In vitro studies using cultured human lymphocytes and fibroblast lines indicate that short peptide sequences containing carboxylated side chains (such as aspartic and glutamic acid) can penetrate nuclear membranes and bind directly to histone proteins or specific DNA sequences.
Laboratory observations suggest that Livagen administration in cell models induces de-condensation of pericentromeric heterochromatin, thereby altering transcriptional accessibility. In rodent models of cellular senescence, investigators have monitored how Livagen influences the transcription rate of ribosomal RNA (rRNA) genes and marker proteins involved in cellular repair pathways. These mechanism-focused assays help elucidate how low-molecular-weight peptide signaling cascades modulate gene expression profile shifts without genomic integration. Researchers can access detailed whitepapers on epigenetic peptide mechanisms via the PX1 research library.
Comparative Analysis: Livagen, Epitalon, and Related Short Peptides
In bioregulatory peptide research, Livagen is frequently evaluated alongside structurally related short peptides to map sequence-activity relationships. The table below illustrates structural and functional differences documented across preclinical trial models:
While Epitalon (Ala-Glu-Asp-Gly) is characterized by a terminal alanine and glycine residue, Livagen incorporates an N-terminal lysine residue, introducing a basic primary amine group that alters its net charge at physiological pH. Comparative in vitro binding assays demonstrate that these distinct charge distributions alter peptide affinity toward nuclear matrix proteins. Evaluated alongside other compounds in our catalogue of research peptides, Livagen provides a distinct structural tool for comparative chromatin-binding research.
Laboratory Reconstitution, Handling, and Solubility Protocols
Proper handling and reconstitution protocols are vital to maintain the structural integrity of Livagen during laboratory experimentation. Livagen is supplied as a lyophilized (freeze-dried) sterile powder in sealed glass vials. To prepare working stock solutions for in vitro assays, researchers should follow standardized aseptic procedures:
Reconstitution should be performed using sterile, cold Bacteriostatic Water or phosphate-buffered saline (PBS, pH 7.4). After introducing the diluent along the inner vial wall, gentle swirl motion should be applied until the lyophilized cake fully dissolves; vortexing or high-shear mechanical agitation must be avoided to prevent peptide aggregation. Once reconstituted, stock solutions should be aliquoted into single-use microcentrifuge tubes and stored at -20°C or -80°C to mitigate degradation caused by repeated freeze-thaw cycles.
Sourcing Standards: Evaluating COA, RP-HPLC, and Mass Spectrometry
When purchasing Livagen for sale, laboratory buyers must audit the supplier’s analytical verification processes. Low-quality peptide synthesis often leaves truncated sequences, residual trifluoroacetic acid (TFA), or organic solvent residues that distort cell culture measurements.
PX1 Research ensures lot-level transparency through rigorous two-stage analytical testing. Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) measures optical purity at 214 nm and 220 nm, confirming that target peptide purity exceeds 99.0%. Concurrently, Electrospray Ionization Mass Spectrometry (ESI-MS) confirms exact molecular mass matching the theoretical molecular weight of Lys-Glu-Asp-Ala. Every report is tied to the specific lot number printed on the product label and accessible via our public database.
Endotoxin Control and Bioburden Standards for In Vitro Assays
Endotoxins—lipopolysaccharides (LPS) derived from the outer cell membrane of Gram-negative bacteria—are common artifacts in peptide manufacturing. In cell culture experiments, even trace endotoxin contamination can trigger non-specific toll-like receptor (TLR) activation, yielding false-positive inflammatory markers and invalidating preclinical experimental data.
PX1 Research enforces strict bioburden controls throughout synthesis and lyophilization. All Livagen lots undergo quantitative Chromogenic Limulus Amebocyte Lysate (LAL) testing to confirm endotoxin levels remain below <0.01 EU/mg. This industry-leading standard guarantees that cellular responses observed during in vitro assays stem purely from peptide activity rather than bacterial artifacts.
USA Manufacturing, Inventory Controls, and Domestic Logistics
To maintain consistent supply chains for institutional research laboratories, PX1 Research manufactures and packages all peptides within state-of-the-art cGMP-compliant facilities located in the United States. Domestic production eliminates international customs clearance delays, temperature variations during transit, and dubious origin provenance.
Orders placed before 3:00 PM EST Monday through Friday ship same-day from our dual distribution centers in California and Arizona. Packages are dispatched in cold-chain compatible packaging to shield lyophilized compounds from thermal degradation. Principal investigators and laboratory procurement managers requiring large-scale synthesis or recurring shipments can establish wholesale lab accounts for volume pricing and prioritized batch allocation.
Frequently Asked Questions
Where can I find verified Livagen for sale for laboratory research?
PX1 Research offers USA-manufactured, research-grade Livagen for sale directly through our secure platform, complete with independent third-party COA verification for every production lot.
What is the amino acid sequence of Livagen?
Livagen is a synthetic tetrapeptide with the amino acid sequence L-lysyl-L-glutamyl-L-aspartyl-L-alanine (Lys-Glu-Asp-Ala or KEDA).
What purity level is guaranteed when purchasing Livagen from PX1 Research?
PX1 Research guarantees a minimum purity of 99.0% for Livagen, as verified by lot-specific Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC).
Is Livagen approved for human consumption or therapeutic use?
No. Livagen is a research compound supplied strictly for in vitro, cell culture, and laboratory investigation. It is not for human or veterinary use.
How should lyophilized Livagen be stored upon delivery?
Lyophilized Livagen should be stored in a dry environment at -20°C for long-term stability. Upon receipt, desiccated storage prevents moisture absorption.
What solvent is recommended for reconstituting Livagen in lab experiments?
Sterile Bacteriostatic Water or sterile phosphate-buffered saline (PBS, pH 7.4) is typically used to reconstitute Livagen for cellular assays.
How is the identity of Livagen verified analytically?
Identity is verified using Mass Spectrometry (ESI-MS or MALDI-TOF), confirming the compound's observed molecular mass matches the theoretical mass of Lys-Glu-Asp-Ala.
What are the bacterial endotoxin limits for PX1 Research Livagen?
Every lot of Livagen is LAL tested to ensure endotoxin levels measure less than 0.01 EU/mg, preventing non-specific immune signaling in cell culture models.
How does Livagen differ structurally from Epitalon?
Livagen features a Lys-Glu-Asp-Ala sequence, whereas Epitalon features an Ala-Glu-Asp-Gly sequence. The presence of an N-terminal Lysine gives Livagen a distinct basic charge profile.
What are the shipping timeframes for orders of Livagen for sale?
PX1 Research provides same-day shipping for orders placed Monday through Friday before 3:00 PM EST, utilizing fulfillment hubs in California and Arizona.
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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.