Alpha-Klotho 50mg — Vial Spec, Reconstitution Math & COA

Overview of the Alpha-Klotho 50mg Mass Specification

A 50mg mass unit of Alpha-Klotho represents a high-capacity yield format engineered specifically for extensive laboratory investigations. Supplied as a lyophilized, cake-like solid inside a sealed, sterile glass research vial, this quantity is tailored for research facilities conducting high-throughput screening (HTS), extensive dose-response matrix assays, or parallel cell culture treatments requiring a continuous supply of identical lot-matched stock solution.

Primary users of the 50mg format include core laboratory facilities, university research groups, and private biotechnology platforms. Ordering high-mass vials reduces batch-to-batch variation across large experimental series by allowing the preparation of a single master stock solution. While standard catalog offerings often focus on smaller microgram or low-milligram unit sizes, high-yield options streamline multi-well microtiter plate preparations.

Please note that overall product availability for high-mass vials varies based on production cycles. Researchers seeking standard catalog items or custom fill requests should browse our comprehensive list of available compounds at /all-peptides or inspect specific formulation details via our Alpha-Klotho product page. All products provided by PX1 Research are strictly designated for laboratory research use only.

Alpha-Klotho Molecular Structure and Biological Context

Alpha-Klotho is an essential single-pass transmembrane protein that also exists in a circulating soluble isoform generated through alternative splicing or proteolytic cleavage of the extracellular domain. Preclinical studies indicate that the soluble fragment functions as an endocrine humoral factor modulating multiple intracellular signaling pathways, including Fibroblast Growth Factor 23 (FGF23) receptor binding, insulin/IGF-1 signaling, and Wnt pathway cascade inhibition.

In vitro models utilizing endothelial cells, renal tubular epithelial cultures, and neuronal cell lines have demonstrated that exogenous Alpha-Klotho exposure interacts with cell-surface receptors to regulate oxidative stress responses and ion channel transport dynamics. Researchers investigating cellular senescence, calcium/phosphate homeostasis, and extracellular matrix remodeling utilize Alpha-Klotho to map transmembrane signal transduction dynamics. To explore broader biochemical contexts and related structural pathways, consult the PX1 research hub.

Reconstitution Calculations for a 50mg Mass Fill

Accurate volumetric reconstitution of a 50mg lyophilized cake requires careful calculation to establish target working concentrations. Depending on the assay protocol and fluid volume requirements of automated liquid handlers, common reconstitution volumes range between 1.0 mL and 3.0 mL of appropriate laboratory diluent (such as sterile bacteriostatic water or phosphate-buffered saline).

To achieve a concentrated master stock of 50.0 mg/mL (50 µg/µL), reconstitute the 50mg vial with exactly 1.0 mL of diluent. Adding 2.0 mL of diluent yields a working stock concentration of 25.0 mg/mL (25 µg/µL). Reconstitution with 3.0 mL of solvent results in a concentration of 16.67 mg/mL (16.67 µg/µL). For rapid laboratory conversion calculations across various vial sizes, researchers are encouraged to utilize the PX1 interactive reconstitution calculator.

When dissolving high-mass lyophilized cakes, the liquid volume should be introduced slowly down the interior glass wall of the vial. The vial should be gently swirled until full dissolution is observed. Violent agitation or vortexing must be avoided to prevent mechanical shearing or denaturation of the protein structure.

Aliquot Planning and Bench Handling Protocols

Because large mass units like 50mg are typically intended for multi-day or multi-plate experimental protocols, improper handling post-reconstitution can compromise peptide stability. Subjecting reconstituted aqueous solutions of Alpha-Klotho to repeated freeze-thaw cycles causes physical degradation, aggregation, and loss of biological activity in vitro.

To prevent degradation, researchers should implement an immediate aliquoting protocol upon reconstitution. Master stock solutions should be subdivided into single-use microcentrifuge tubes according to calculated daily assay requirements (e.g., 50 µL or 100 µL aliquots). These aliquots must be flash-frozen using liquid nitrogen or a dry ice/ethanol bath and stored at -20°C or -80°C until use.

Furthermore, at sub-micromolar working dilutions, proteins can adsorb onto the internal polypropylene surfaces of standard laboratory tubes. To minimize hydrophobic surface binding, researchers frequently incorporate a carrier protein, such as 0.1% Bovine Serum Albumin (BSA) or Human Serum Albumin (HSA), into the dilution buffer.

Analytical Rigor: HPLC, MS, and Endotoxin Standards

High-density assays require stringent purity controls to prevent confounding variables caused by residual chemical reagents or bacterial contaminants. PX1 Research subjects every synthesis batch to rigorous quality control protocols executed in ISO 17025 accredited analytical laboratories located in the USA.

Purity is verified using High-Performance Liquid Chromatography (HPLC), ensuring chemical purity exceeding defined target thresholds (>98%). Mass Spectrometry (MS) analysis confirms identity by verifying exact molecular mass against theoretical sequence profiles. Additionally, because cell culture models are highly sensitive to bacterial cell-wall fragments, total endotoxin levels are quantified using standardized chromogenic LAL assays to ensure levels remain below strictly controlled thresholds (<0.01 EU/µg).

Researchers can inspect batch-specific test results, analytical chromatograms, and certificate documentation directly via our dedicated COA verification portal.

Selecting Mass Sizes: 50mg vs Standard Formulations

Determining whether a 50mg fill size or a smaller unit mass (such as 1mg or 5mg) is optimal depends entirely on the design and scale of the research project. Small-scale pilot studies, exploratory Western blot validation, or single-plate receptor binding assays are usually best served by lower mass configurations to eliminate unnecessary freeze-thaw exposure of excess material.

Conversely, 50mg mass fills are ideal for high-throughput screening campaigns, automated liquid handling platforms, continuous perfusion systems, or animal model research programs where consistent baseline concentration across prolonged time courses is vital. If PX1 does not actively list a standard 50mg off-the-shelf option on the core catalog, custom high-yield fills can be arranged through institutional channels.

Comparative Analysis: Alpha-Klotho in Preclinical Pathways

In cell survival and tissue homeostasis research, Alpha-Klotho represents one of several critical peptide tools evaluated for its role in cellular stress responses and extracellular signaling cascades. Researchers frequently analyze its cellular mechanisms alongside other distinct recombinant peptides to observe synergistic or antagonistic biological effects.

For example, while Alpha-Klotho primarily modulates FGF23 signal transduction and oxidative pathways, researchers studying muscle mass regulation and cell proliferation often evaluate Follistatin 315 for its specific binding affinity to myostatin and activin proteins. Similarly, investigators exploring mitochondrial bioenergetics and metabolic adaptation incorporate MOTS-c into their experimental designs, whereas studies focusing on extracellular matrix remodeling and gene expression modulation frequently utilize GHK-Cu. Comparative multi-compound assays allow research teams to map complex cross-talk across distinct metabolic and cellular survival pathways.

Storage Parameters and Lyophilized Stability Metrics

Lyophilized Alpha-Klotho 50mg vials must be stored under controlled conditions to maintain chemical stability. Upon receipt, desiccated vials should be kept at -20°C for short-to-medium term storage, or at -80°C for long-term storage, protected from direct light exposure.

Once reconstituted in aqueous buffer, stock solutions are stable at 4°C for short durations (typically up to 24–48 hours). For extended storage, aliquoted master stocks must be maintained at -80°C. Researchers must avoid ambient temperature fluctuations and ensure freezer units are non-frost-free to prevent destructive thermal cycling.

Institutional Procurement and Custom Bulk Options

PX1 Research supports university departments, pharmaceutical laboratories, and contract research organizations (CROs) requiring specialized mass fills, specific buffer formulations, or bulk packaging. Products are shipped directly from facilities in California and Arizona, with same-day processing available for orders placed Monday through Friday before cut-off times.

Principal investigators and laboratory managers seeking to establish recurring bulk contracts or request custom vial fill sizes, such as 50mg mass allocations, can submit institutional procurement inquiries directly through our wholesale channel.