Alpha-Klotho 10mg — Vial Spec, Reconstitution Math & COA

Overview of Alpha-Klotho 10mg Research Vials & Catalog Availability

A 10mg vial of Alpha-Klotho contains 10 milligrams of highly purified, lyophilized recombinant protein fragment specifically preserved for in vitro, biochemical, and preclinical laboratory applications. Principal investigators and laboratory managers typically order this higher-mass fill size when running extensive dose-response curves, multi-plate cell culture assays, or multi-week preclinical animal models where batch-to-batch consistency is paramount. Utilizing a single 10mg vial eliminates lot-to-lot variance across large assay batches, ensuring uniform signal intensity and reproducible kinetic data.

To maintain optimal flexibility for diverse experimental designs, PX1 Research evaluates fill sizes against rigorous quality control metrics. While laboratory demand for higher mass yields is common in high-throughput screening facilities, researchers should note that specific catalog offerings fluctuate. If a dedicated 10mg single-vial configuration is currently unlisted in standard inventory, investigators can review identical-purity standard configurations through our full research peptide catalog or inspect specialized low-residue formulations like Alpha-Klotho LR. Bulk allocation and custom lot partitioning are also accessible through our wholesale lab account portal.

Molecular Profile and Preclinical Research Context of Alpha-Klotho

Alpha-Klotho (α-Klotho) is a single-pass transmembrane protein that also exists as a circulating, shed soluble variant. In native physiological models, soluble α-Klotho acts as an endocrine cofactor for fibroblast growth factor 23 (FGF23) signaling via FGF receptors, while independently modulating multiple intracellular pathways including Wnt, insulin/IGF-1, and transforming growth factor-beta (TGF-β) cascades. Preclinical studies suggest that α-Klotho expression correlates with cellular stress resistance, enzymatic antioxidant upregulation, and attenuation of pro-inflammatory signaling in vascular and renal tissue models.

In vitro data indicate that recombinant α-Klotho fragments suppress senescent cell secretory phenotypes (SASP) and maintain mitochondrial membrane potential under oxidative stress challenges. Laboratory interest in α-Klotho continues to expand within anti-aging, metabolic, and renal pathophysiological research. By supplying standardized lyophilized stock, investigators can precisely quantify receptor binding affinities, signal transduction kinetics, and cellular survival parameters without matrix interference.

Reconstitution Math: Diluent Volumes and Concentration Yields

Accurate reconstitution math is critical when preparing stock solutions from a 10mg lyophilized mass to prevent dosage variance and dilution errors in sensitive cell culture or enzymatic assays. Because 10mg represents a substantial mass of recombinant protein, selecting the appropriate volume of sterile laboratory diluent (such as sterile water for injection, phosphate-buffered saline, or bacteriostatic water) dictates both final concentration and aliquot handling options.

Below are the standardized concentration yields when reconstituting a 10mg vial of Alpha-Klotho across standard laboratory liquid volumes:

1.0 mL Diluent Addition: Yields a stock concentration of 10.0 mg/mL (10.0 µg/µL or 10,000 µg/mL). This concentrated stock is optimal for low-volume storage aliquots where micro-pipetting small masses into high-volume media is required.

2.0 mL Diluent Addition: Yields a stock concentration of 5.0 mg/mL (5.0 µg/µL or 5,000 µg/mL). This mid-range concentration facilitates precise volumetric transfer for medium-throughput serial dilutions without exceeding micro-centrifuge volume thresholds.

3.0 mL Diluent Addition: Yields a stock concentration of 3.33 mg/mL (3.33 µg/µL or 3,333 µg/mL). Recommended for larger-volume working stocks intended for immediate plate dosing across multiple 96-well or 384-well culture arrays.

To quickly recalculate custom diluent volumes or adjust for specific molarity targets in specialized buffer systems, researchers are encouraged to utilize our interactive reconstitution calculator.

Laboratory Aliquoting Protocol and Freeze-Thaw Prevention

Recombinant proteins such as Alpha-Klotho are susceptible to structural denaturing, aggregation, and loss of biological activity when subjected to repeated freeze-thaw cycles. Once the 10mg vial is fully dissolved, laboratory personnel must establish a systematic aliquoting protocol prior to primary freezer storage. Stock solutions should never be stored in primary reconstitution vials if multiple independent sampling events are scheduled.

Upon complete dissolution of the lyophilized cake, gently invert the vial to achieve homogeneity without introducing air bubbles or mechanical shear force. Immediately divide the stock solution into single-use micro-aliquots using sterile, polypropylene low-protein-binding microcentrifuge tubes. Aliquot volumes should align with single-assay operational needs (e.g., 20 µL to 100 µL working volumes). Standardize storage at -20°C for short-term evaluation (up to 30 days) or -80°C for long-term preservation. Once thawed for an experimental run, any unused portion of a working aliquot should be discarded rather than re-frozen.

HPLC/MS Purity, Endotoxin Limits, and ISO 17025 COA Verification

In vitro cellular models and biochemical receptor binding assays demand uncompromising chemical purity to ensure valid experimental outcomes. Contaminants, residual TFA salts, or endotoxin presence can skew cellular viability assays, alter inflammatory gene expression, or cause cell death independent of the peptide target. PX1 Research enforces strict quality assurance protocols for every lot produced.

Each lot of Alpha-Klotho undergoes rigorous analytical testing, including High-Performance Liquid Chromatography (HPLC) to verify purity (>98%) and Mass Spectrometry (MS) to confirm exact molecular mass against theoretical sequence values. Furthermore, endotoxin testing is conducted via Chromogenic LAL assays to ensure levels remain below strict laboratory limits (<0.01 EU/µg protein).

PX1 Research issues a lot-matched Certificate of Analysis (COA) for every fill size and batch distributed. Researchers can verify the analytical profile, purity chromatograms, and mass spectra for their specific lot directly through our transparent Certificate of Analysis library.

Vial Size Selection Guide: 10mg vs. Lower Mass Configurations

Selecting the ideal vial mass depends primarily on assay throughput, experimental timeline, and the stability parameters of the reconstituted compound. While a 10mg vial offers economic and operational advantages for high-volume research, smaller mass configurations (such as 1mg or 2mg vials) may be preferable for specific experimental designs.

Choose the 10mg format when conducting continuous, high-density cell culture screens, long-term animal tissue model studies, or when single-lot consistency across hundreds of microplates is necessary to minimize batch control variables. Choose smaller fill sizes (1mg–2mg) when conducting exploratory feasibility studies, single-plate assays, or when facility protocols restrict long-term freezer storage of liquid aliquots. Matching the vial size to operational consumption rate minimizes product degradation and maximizes laboratory efficiency.

Comparative Analysis: Alpha-Klotho alongside Related Research Compounds

In preclinical studies targeting cellular longevity, mitochondrial integrity, and senescence modulation, researchers frequently compare or combine Alpha-Klotho with other specialized peptides. Understanding how these research compounds differ in target mechanism and molecular structure is essential for constructing robust experimental controls.

For instance, while Alpha-Klotho functions primarily via FGFR co-receptor interaction and downstream metabolic signaling suppression, compounds like FOXO4-DRI act intracellularly to disrupt p53-FOXO4 binding and selectively induce apoptosis in senescent cells. Similarly, Epithalon is studied for its regulatory effects on telomerase activity and chromatin structure in pineal gland research models, whereas SS-31 targets cardiolipin within the inner mitochondrial membrane to optimize electron transport chain efficiency. Exploring these distinct targets within the broader PX1 research library allows investigators to design comprehensive multi-pathway comparative assays.

Storage, Stability, and Reagent Handling Standards

To guarantee compound stability over the shelf life of the vial, strict temperature control and environmental isolation are required. Unreconstituted 10mg Alpha-Klotho lyophilized vials should be stored in a dark, dry environment at -20°C. Under these desiccated freezer conditions, the peptide remains stable for up to 24 months from the manufacturing date shown on the lot label.

During reconstitution, bring the lyophilized vial to room temperature inside a laminar flow hood before introducing diluent to avoid moisture condensation inside the vial cap. Diluents containing 0.1% BSA (Bovine Serum Albumin) or HSA (Human Serum Albumin) may be used if the final protocol requires stabilizing ultra-low working concentrations in cell culture media. Avoid probe sonication or vigorous vortexing, as mechanical agitation can disrupt secondary peptide folding.

Preclinical Workflow Integration and Experimental Controls

Integrating reconstituted Alpha-Klotho into in vitro cell culture or cell-free enzymatic binding assays requires meticulous control design. When administering reconstituted stock into cell culture media, ensure that final vehicle concentrations (e.g., trace PBS or diluent) are identical across control and experimental wells.

Preclinical literature demonstrates that working concentrations of soluble α-Klotho in cell culture models typically range from 10 ng/mL to 1000 ng/mL depending on the cell line (e.g., human embryonic kidney cells, vascular endothelial cells, or primary chondrocytes) and target assay endpoint (e.g., Western blot phosphorylation analysis, RT-qPCR gene expression, or ROS quantification assays). Researchers must perform preliminary range-finding assays to establish baseline sensitivity for their specific cell model.