PX1 Research serves as a premier USA-based supplier of research-grade Bronchogen (Ala-Glu-Asp-Leu), providing verified synthetic peptides for advanced in vitro and preclinical investigation. Every lot undergoes rigorous third-party analytical testing to guarantee precise chemical identity, sequence integrity, and ultra-high purity for downstream cellular and molecular assays.
PX1 Research serves as a premier USA-based supplier of research-grade Bronchogen (Ala-Glu-Asp-Leu), providing verified synthetic peptides for advanced in vitro and preclinical investigation. Every lot undergoes rigorous third-party analytical testing to guarantee precise chemical identity, sequence integrity, and ultra-high purity for downstream cellular and molecular assays.
A reliable Bronchogen DNA stabilizer supplier provides high-purity synthetic tetrapeptide Ala-Glu-Asp-Leu (AEDL) verified via RP-HPLC and mass spectrometry for laboratory research. Sourcing requires lot-specific Certificates of Analysis confirming sequence identity, purity exceeding 98%, and sub-threshold endotoxin levels to ensure reproducible results in vitro and in animal models of gene expression and chromatin stability.
When evaluating a supplier for short-chain bioregulatory peptides, researchers must ensure that the vendor provides transparent batch-level analytics rather than generic reference sheets. PX1 Research delivers fully documented, USA-manufactured compounds designed specifically to meet the standards of academic, biotechnology, and institutional research facilities.
Bronchogen is a synthetic short-chain peptide composed of four amino acid residues: L-alanyl-L-glutamyl-L-aspartyl-L-leucine (sequence: Ala-Glu-Asp-Leu or AEDL). Belonging to the class of Khavinson bioregulatory peptides, it was designed to mimic endogenous signaling oligopeptides that interact directly with nucleosomal structures and gene promoter regions. Its low molecular weight allows for direct cell-membrane permeability and nuclear localization in experimental cell cultures.
In chemical structure, Bronchogen features two acidic amino acids (glutamic acid and aspartic acid) flanked by hydrophobic and non-polar residues (alanine and leucine). This specific charge distribution facilitates electrostatic interactions with histones and specific DNA sequences within the major groove of double-stranded DNA. Scientists studying bioregulatory peptides frequently analyze AEDL to understand how short peptide motifs alter gene transcription without requiring complex secondary or tertiary protein structures.
Preclinical studies suggest that Bronchogen interacts directly with the genome by modulating chromatin accessibility. In vitro assays using plant and mammalian cell lines indicate that AEDL can bind to specific sequence motifs in DNA, resulting in local de-condensation of heterochromatin into euchromatin. This structural shift enhances the accessibility of RNA polymerase II and transcription factors to promoter regions, particularly those associated with cellular repair, antioxidant response, and structural protein synthesis.
Furthermore, in vitro models examining genomic integrity under oxidative stress conditions demonstrate that Bronchogen exposure reduces the frequency of single- and double-strand DNA breaks. Researchers utilize assays such as single-cell gel electrophoresis (comet assay) and γ-H2AX foci immunofluorescence to measure the protective capacity of AEDL when cellular cultures are exposed to reactive oxygen species (ROS) or ionizing radiation. Data suggest that Bronchogen may stabilize the tertiary structure of DNA by reinforcing hydrogen bonding and histone-DNA electrostatic stability.
In respiratory research, Bronchogen is extensively studied using primary bronchial epithelial cell cultures and rodent tissue models. In vitro data indicate that AEDL application alters the transcription rates of genes encoding surfactant proteins, mucins, and anti-inflammatory cytokines. Laboratories investigating chronic pulmonary remodeling utilize Bronchogen to observe changes in fibroblast proliferation, extracellular matrix (ECM) deposition, and epithelial barrier function.
In rodent models of induced pulmonary injury—such as bleomycin-induced fibrosis or lipopolysaccharide (LPS)-induced acute lung injury—preclinical research demonstrates that administration of AEDL correlates with reduced leukocyte infiltration, lower concentrations of pro-inflammatory markers (such as TNF-α and IL-6), and improved histological scores in lung parenchymal tissue. These investigations highlight the potential of short-chain peptide bioregulators to maintain cellular homeostasis under pathological stress.
Bronchogen functions within a broader family of synthetic peptide bioregulators designed for targeted tissue interaction. To understand its distinct relative activity, researchers frequently compare AEDL against other short-chain sequences in parallel experimental designs.
For instance, while Bronchogen (Ala-Glu-Asp-Leu) is primary evaluated for bronchial tissue expression and DNA stabilization, Epitalon (Ala-Glu-Asp-Gly) is investigated for its role in telomerase induction and pineal gland gene regulation. Similarly, Thymogen (Glu-Trp) is utilized primarily in immunomodulatory research targeting T-cell differentiation, and Vesugen (Lys-Glu-Asp) targets vascular endothelial gene expression. Comparing these compounds allows laboratories to isolate sequence-specific epigenetic actions from generalized oligopeptide signaling effects.
Proper handling and reconstitution procedures are essential to maintain the structural stability and bioactivity of Bronchogen in laboratory settings. Lyophilized Bronchogen should be stored at -20°C or -80°C upon receipt to prevent thermal degradation and moisture absorption. Desiccated peptide powder remains stable for extended periods when kept away from direct light and ambient humidity.
For reconstitution, investigators should use sterile, endotoxin-free Bacteriostatic Water or phosphate-buffered saline (PBS, pH 7.4), depending on the requirements of the downstream assay. The lyophilized cake should be allowed to equilibrate to room temperature before adding the solvent to prevent moisture condensation inside the vial. Gentle swirly motion is recommended; aggressive vortexing should be avoided to prevent peptide aggregation or shear stress. Once reconstituted, stock solutions should be aliquoted into single-use microcentrifuge tubes and stored at -80°C to minimize freeze-thaw cycles.
Acquiring research peptides from a transparent supplier requires thorough verification of analytical documentation. Essential criteria for evaluating a bronchogen dna stabilizer supplier include batch-specific testing performed by independent, accredited laboratories.
Key analytical metrics every researcher should review on a Certificate of Analysis (COA) include:
• Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC): Confirms chemical purity by identifying and quantifying synthetic impurities, truncated sequences, or residual protecting groups. High-grade research peptides must demonstrate ≥98% purity.
• Electrospray Ionization Mass Spectrometry (ESI-MS) or MALDI-TOF: Verifies exact molecular mass and sequence identity, confirming that the observed mass-to-charge ratio matches the theoretical mass of Ala-Glu-Asp-Leu (432.43 g/mol).
• Endotoxin Testing (LAL Assay): Quantifies lipopolysaccharide contamination. For cellular assays, endotoxin levels must remain well below 0.1 EU/mg to avoid triggering spurious inflammatory pathways in cell cultures.
• Residual Solvent & Trifluoroacetic Acid (TFA) Content: Ensures that counter-ions and organic solvents used during Solid-Phase Peptide Synthesis (SPPS) are adequately removed during purification.
PX1 Research maintains rigorous quality control frameworks to support the scientific community with reliable research materials. All peptides supplied by PX1 Research are manufactured in state-of-the-art, GMP-compliant facilities located in the United States and shipped directly from distribution hubs in California and Arizona.
Every production lot is submitted to an independent ISO 17025 accredited laboratory for comprehensive testing. We provide full lot traceability and publicly accessible COAs for our entire catalog, including all peptides available through our scientific platform. Researchers can consult our central research library to examine technical dossiers, stability data, and analytical methodologies supporting our compound inventory.
Principal investigators, core facilities, and commercial research firms requiring high-volume supplies of short-chain peptides can utilize specialized procurement channels. PX1 Research offers customizable batch sizes, custom synthesis options, and dedicated account support through our wholesale portal.
Bulk orders undergo the identical analytical rigor as standard catalog units, including multi-point purity analysis, endotoxin quantification, and full lot documentation. Institutional clients benefit from streamlined supply chain management, rapid dispatch, and dedicated scientific support tailored to ongoing preclinical studies.
What is Bronchogen (AEDL) and what is its primary focus in preclinical research?
Bronchogen is a synthetic tetrapeptide (Ala-Glu-Asp-Leu) belonging to the bioregulatory peptide class. In preclinical research, it is primarily studied for its ability to interact with chromatin, regulate gene expression in bronchial epithelial cells, and stabilize DNA structure under environmental or oxidative stress.
How does PX1 Research verify the purity and sequence identity of Bronchogen?
PX1 Research verifies every lot of Bronchogen using third-party ISO 17025 accredited laboratory testing. Quality verification includes RP-HPLC to confirm purity levels ≥98%, Mass Spectrometry (ESI-MS) to verify exact molecular weight, and LAL assays to ensure endotoxin limits meet strict scientific standards.
What is the recommended storage temperature for lyophilized Bronchogen?
Lyophilized Bronchogen should be stored at -20°C or -80°C in a dry, dark environment upon receipt. Proper cold storage preserves chemical stability and prevents degradation over extended periods.
What solvent should be used to reconstitute Bronchogen for in vitro assays?
Reconstitution is typically performed using sterile, endotoxin-free Bacteriostatic Water or sterile phosphate-buffered saline (PBS, pH 7.4). The solvent selection depends on the specific concentration requirements and biological compatibility of the planned assay.
How does Bronchogen differ from Epitalon in experimental models?
While both are synthetic short-chain bioregulatory peptides, Bronchogen (AEDL) focuses primarily on respiratory epithelial tissue gene transcription and local cellular repair, whereas Epitalon (AEDG) is widely studied for telomerase activation, pineal gland function, and systemic anti-aging mechanisms.
Does PX1 Research provide lot-specific Certificates of Analysis (COAs)?
Yes. Every shipment of Bronchogen from PX1 Research includes access to a lot-specific COA detailing RP-HPLC purity profiles, mass spectrometry verification, and endotoxin assay results.
Where are PX1 Research peptides manufactured and shipped from?
All PX1 Research peptides are synthesized in USA-based, GMP-compliant facilities and dispatched directly from fulfillment centers in California and Arizona, ensuring fast and reliable domestic delivery.
Can academic and corporate institutions establish wholesale procurement accounts?
Yes. Qualified academic institutions, biotechnology companies, and contract research organizations (CROs) can establish high-volume procurement accounts through the PX1 Research wholesale portal.
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.