Buy Pnc-27
PX1 Research provides analytical-grade PNC-27 strictly for qualified academic institutions, pharmaceutical laboratories, and biomedical research facilities. Every synthesis batch undergoes exhaustive quality verification, including HPLC purity analysis, mass spectrometry sequencing, and endotoxin screening to ensure reproducible preclinical data.
Quick answer
PX1 Research provides analytical-grade PNC-27 strictly for qualified academic institutions, pharmaceutical laboratories, and biomedical research facilities. Every synthesis batch undergoes exhaustive quality verification, including HPLC purity analysis, mass spectrometry sequencing, and endotoxin screening to ensure reproducible preclinical data.
Key takeaways
- Principal investigators looking to [buy PNC-27](/product/buy-pnc-27) for laboratory research require analytical-grade material characterized by verified primary sequence integrity, ultra-high chemical purity, and strictly controlled endotoxin limits.
- PNC-27 is a synthetic 32-amino-acid chimeric peptide engineered to target specific membrane microdomains on transformed cell lines.
- Biomedical literature documents extensive evaluation of PNC-27 across a broad spectrum of malignant cell lines.
- When evaluating membrane-disruptive and p53-pathway targeting peptides, researchers frequently compare PNC-27 against structural analogs and alternative oncological peptides.
Direct Answer: Sourcing PNC-27 for Preclinical Research
Principal investigators looking to buy PNC-27 for laboratory research require analytical-grade material characterized by verified primary sequence integrity, ultra-high chemical purity, and strictly controlled endotoxin limits. PX1 Research supplies reference-standard PNC-27 manufactured in ISO 17025-accredited, GMP-compliant US facilities. Every lot is accompanied by a downloadable, third-party Certificate of Analysis (COA) confirming identity via electrospray ionization mass spectrometry (ESI-MS) and purity equal to or exceeding 98% via reverse-phase high-performance liquid chromatography (RP-HPLC). Orders placed before 3:00 PM EST ship same-day from our California and Arizona distribution hubs.
As a specialized research supplier, PX1 Research maintains strict quality controls to prevent batch-to-batch variability in cell culture and biophysical assays. PNC-27 is supplied as a lyophilized powder solely intended for in vitro experimentation, cell viability assays, and animal model research. It is strictly not for human consumption, clinical diagnostic procedures, or therapeutic application.
Molecular Structure and Primary Mechanism of Action
PNC-27 is a synthetic 32-amino-acid chimeric peptide engineered to target specific membrane microdomains on transformed cell lines. The primary structure of PNC-27 consists of an amino acid sequence derived from the HDM-2-binding domain of the p53 tumor suppressor protein (residues 12–26), attached at its C-terminus to a transmembrane-penetrating domain derived from the Antennapedia homeodomain peptide (Penetratin).
The primary mechanism of action investigated in preclinical literature centers on the peptide's ability to selectively bind membrane-bound HDM-2 (human double minute 2) protein present on the surface of transformed tumor cells, while exhibiting minimal interaction with non-transformed somatic cells. Upon binding membrane HDM-2, PNC-27 adopts an alpha-helical conformation that inserts directly into the lipid bilayer, inducing rapid transmembrane pore formation and cell lysis (necrosis). Crucially, in vitro assays demonstrate that this membrane disruption occurs independently of the intracellular p53 pathway or classical apoptotic cascades.
Preclinical Literature and In Vitro Cancer Models
Biomedical literature documents extensive evaluation of PNC-27 across a broad spectrum of malignant cell lines. Preclinical studies indicate that PNC-27 induces rapid cell death in human cancer cell types including pancreatic carcinoma, breast adenocarcinoma, osteosarcoma, and leukemia models, while leaving adjacent non-malignant cells intact due to the lack of surface expression of HDM-2 on normal somatic membranes.
In vitro time-lapse microscopy and scanning electron microscopy (SEM) demonstrate that cell membrane perforation occurs within minutes of exposure to micromolar concentrations of PNC-27. Research in murine xenograft models has further evaluated the localized and systemic administration of PNC-27, demonstrating marked tumor mass reduction without systemic toxicity, cardiotoxicity, or hematological depression typically associated with broad-spectrum chemotherapeutic agents. Researchers interested in exploring related pathways can review our broader selection of research peptides and structural analogs in our dedicated research library.
Comparative Analysis: PNC-27 vs. Related Membrane-Active Peptides
When evaluating membrane-disruptive and p53-pathway targeting peptides, researchers frequently compare PNC-27 against structural analogs and alternative oncological peptides. While PNC-27 relies on a 32-residue sequence containing the p53(12–26) fragment bound to a penetratin sequence, its sister compound PNC-28 utilizes a slightly modified p53-derived sequence (residues 17–26) connected to the same cell-penetrating motif. In comparative in vitro screens, both PNC-27 and PNC-28 demonstrate selective membranolytic toxicity toward HDM-2-expressing tumor cells.
Conversely, compounds such as LL-37 or amphipathic antimicrobial peptides induce pore formation through non-specific electrostatic interactions with negatively charged membrane phospholipids rather than receptor-mediated targeting. Additionally, classical small-molecule HDM-2/MDM2 inhibitors (such as Nutlins) function intracellularly to block p53 degradation, requiring a functional p53 gene. PNC-27 stands out in oncology research specifically because its necrotic mechanism remains fully functional in p53-mutated or p53-null cancer lines.
Analytical Purity Verification: RP-HPLC and Mass Spectrometry
Peptide purity is critical for obtaining reproducible research data in cell culture experiments. Uncharacterized peptide impurities, truncation sequences, or residual cleavage reagents can cause non-specific cytotoxicity, skewing cell viability assays and receptor-binding kinetics. When researchers buy PNC-27 from PX1 Research, each batch is supplied with an independent, third-party Certificate of Analysis.
Purity is verified using Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) under a C18 gradient elution scheme to separate target sequences from deletion artifacts. Our quality threshold requires greater than 98.0% chromatographic purity. Structural identity is independently verified using Electrospray Ionization Mass Spectrometry (ESI-MS) or Matrix-Assisted Laser Desorption/Ionization (MALDI-TOF), matching the observed molecular weight precisely to the theoretical monoisotopic mass of the 32-residue PNC-27 peptide.
Endotoxin Testing and Sterile Quality Control
Endotoxins (lipopolysaccharides derived from the outer membrane of Gram-negative bacteria) present a significant risk in cell culture and immunological assays. Trace endotoxin contamination can trigger toll-like receptor 4 (TLR4) signaling, cause non-specific macrophage activation, and distort cell survival metrics.
PX1 Research subjects every lot of PNC-27 to rigorous chromogenic Limulus Amebocyte Lysate (LAL) testing or recombinant Factor C (rFC) assays in an ISO 17025 certified laboratory. Our internal release criteria mandate endotoxin levels well below industry thresholds (<0.01 EU/μg), ensuring that observed necrotic responses in target cell lines are strictly attributable to PNC-27 activity rather than lipopolysaccharide-induced inflammatory signaling.
Laboratory Reconstitution and Solution Stability
PNC-27 is supplied as a lyophilized (freeze-dried) cake or powder under vacuum or inert argon gas to preserve peptide bonds against oxidative degradation. To prepare the compound for in vitro experimentation, proper reconstitution protocols must be maintained in accordance with standard laboratory practices.
1. Centrifuge the vial at low speed prior to opening to ensure all lyophilized powder settles at the bottom of the container. 2. Reconstitute using sterile, endotoxin-free laboratory-grade water, phosphate-buffered saline (PBS, pH 7.4), or a recommended mild buffer depending on the assay protocol. 3. Gently swirl or invert the vial to dissolve the peptide. Avoid high-shear vortexing or vigorous shaking, which can induce aggregation or denaturation of the amphipathic alpha-helical structure. 4. For working aliquots, dilute in sterile media immediately prior to cell treatment to prevent surface adsorption to plastic labware.
Storage Conditions and Cold-Chain Logistics
To preserve chemical integrity, long-term storage of lyophilized PNC-27 should be maintained at -20°C or -80°C in a desiccated environment protected from light exposure. Under these conditions, the solid peptide remains stable for up to 24 months without measurable degradation.
Once reconstituted into solution, aliquots should be used immediately or stored at -80°C to avoid repeated freeze-thaw cycles, which degrade the peptide chain. PX1 Research packages all orders using temperature-controlled materials and ships same-day Monday through Friday from centralized hubs in California and Arizona to guarantee that temperature integrity is preserved during transit. Academic institutions and corporate laboratories establishing recurring delivery schedules can inquire via our wholesale lab portal.
PX1 Research Manufacturing and Quality Differentiation
PX1 Research sets the benchmark for US-manufactured research peptides by operating under strict Quality Management Systems aligned with cGMP standards. Unlike overseas brokers or re-sellers operating without verifiable quality controls, PX1 Research oversees every stage of solid-phase peptide synthesis (SPPS), purification, lyophilization, and secondary analytical validation.
Every batch of PNC-27 sold is tied to a specific lot number matching an accessible, unedited third-party analytical report. This transparent traceability ensures that researchers receive uniform peptide concentrations, accurate net peptide content, and consistent physiological activity across longitudinal studies.
Frequently Asked Questions
Where can I buy PNC-27 for laboratory research?
Qualified researchers and institutions can buy PNC-27 directly from PX1 Research at px1research.com/product/buy-pnc-27. PX1 Research supplies USA-manufactured, analytical-grade PNC-27 (>98% purity) complete with lot-specific COAs.
What is the primary mechanism of action of PNC-27?
Preclinical studies demonstrate that PNC-27 selectively targets membrane-bound HDM-2 proteins expressed on cancer cell surfaces, inserting into the lipid bilayer to form transmembrane pores that cause cell necrosis independent of p53.
How is PNC-27 purity verified by PX1 Research?
PNC-27 purity is verified via Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) to ensure >98% purity, alongside Electrospray Ionization Mass Spectrometry (ESI-MS) to verify molecular weight and sequence identity.
What endotoxin controls are performed on PNC-27 batches?
Every lot of PNC-27 undergoes chromogenic LAL or rFC endotoxin testing in an ISO 17025 certified laboratory, guaranteeing levels under 0.01 EU/μg to prevent non-specific cell activation in culture assays.
How should lyophilized PNC-27 be stored upon arrival?
Lyophilized PNC-27 should be stored desiccated at -20°C or -80°C upon receipt. Under sub-zero desiccated storage, the dry peptide remains stable for up to 24 months.
How should PNC-27 be reconstituted for in vitro assays?
PNC-27 should be reconstituted in sterile, endotoxin-free water or PBS (pH 7.4). The vial should be gently swirled rather than vortexed to avoid shear-induced aggregation.
Does PNC-27 work on p53-mutated cancer cells?
Yes. Preclinical literature confirms that PNC-27-induced cell lysis occurs via direct membrane pore formation following HDM-2 binding, functioning effectively in p53-null and p53-mutated cell lines.
What is the difference between PNC-27 and PNC-28?
PNC-27 contains p53 residues 12–26 attached to penetratin, whereas PNC-28 contains p53 residues 17–26 attached to the same signal peptide. Both target membrane HDM-2, but exhibit minor differences in helical binding kinetics.
What shipping options are available for PNC-27 orders?
PX1 Research offers same-day dispatch for orders placed before 3:00 PM EST, shipping Monday through Friday from facilities located in California and Arizona via expedited cold-chain logistics.
Is PNC-27 suitable for human clinical or therapeutic use?
No. PNC-27 supplied by PX1 Research is strictly a research chemical designated for laboratory, in vitro, and preclinical animal experimentation only. It is not for human or veterinary medical use.
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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.