ATPA Magnetic Beads – Catalog #B2025748

ATPA Magnetic Beads are affinity purification reagents combining a superparamagnetic iron oxide core with ATPA-based surface chemistry for selective capture of target biomolecules. This product is designed to facilitate rapid, one-step separation of bound targets from complex mixtures using a standard magnetic separator.

Scientific Overview

Magnetic bead-based purification is a standard technique in molecular biology and biochemistry for rapid, scalable separation of target molecules from complex samples. The ATPA-coated beads provide selective affinity interaction with target biomolecules while minimizing non-specific adsorption. The superparamagnetic iron oxide core responds rapidly to external magnetic fields, enabling quick pelleting and separation without centrifugation.

This magnetic format offers practical advantages in high-throughput and automated workflows: beads can be captured in seconds, wash steps are rapid and thorough, and elution conditions are mild, preserving protein activity and integrity. The 10 mL volume provided in this product supports both small-scale optimization and larger batch purifications.

Key applications include:

• Selective capture and isolation of target biomolecules
• Rapid purification from cell lysates and complex mixtures
• Sample preparation for proteomics and bioanalytical workflows
• Batch processing and automation-compatible purification

Usage & Handling Guidance

Resuspend beads gently (do not vortex) before use. Add beads to your sample in appropriate binding buffer and incubate with gentle rotation to allow binding to occur. Apply a magnet to pellet beads and remove supernatant. Perform 3–5 washes with ice-cold wash buffer, then elute bound material with a suitable elution buffer (acidic pH, high salt, or denaturing conditions) depending on your downstream application.

• Binding conditions: Optimize pH, ionic strength, and incubation time according to your target properties and the manufacturer's guidance.
• Washing: Remove non-specific binding with detergent-containing buffers or high-salt washes.
• Elution: Choose elution conditions compatible with your downstream analysis; refer to the lot-specific technical data sheet for recommended protocols.

What You Get

• 10 mL of ATPA magnetic beads, ready to use
• Selective affinity capture of target biomolecules
• Rapid, magnet-based separation
• Scalable format suitable for optimization and batch processing
• For research use only (RUO)

Why Researchers Choose It

• Magnetic format enables hands-free, rapid separation
• No centrifugation required, reducing sample loss
• Large volume (10 mL) suitable for extensive experiments or optimization
• Compatible with high-throughput and automated workflows

Frequently Asked Questions (FAQ)

• What is ATPA chemistry?
  For a detailed description of ATPA and its binding characteristics, request the technical data sheet or contact us with your specific application.
• What is the binding capacity of these beads?
  Binding capacity depends on your specific target and assay conditions. Perform a titration experiment with your target molecule to determine optimal bead concentration.
• Can I use these beads in an automated system?
  Yes. The magnetic format is well suited to robotic sample processing; consult the technical data sheet for specific compatibility and protocol details.
• What are recommended elution conditions?
  Elution conditions vary depending on the target and desired downstream use. Refer to the lot-specific technical data sheet for recommended pH, salt, and buffer compositions.
• How long can I incubate the beads with my sample?
  Incubation time may range from 15 minutes to several hours depending on target concentration and binding kinetics. Optimize for your application; longer incubation may improve recovery but may also increase background.
• Can I reuse these beads?
  Beads can be regenerated and reused if thoroughly washed and stored properly; consult the technical data sheet for reuse protocols.

References

• Tsunehiro M, Meki Y, Matsuoka K, Kinoshita-Kikuta E, Kinoshita E, Koike T. A Phos-tag-based magnetic-bead method for rapid and selective separation of phosphorylated biomolecules. J Chromatogr B Analyt Technol Biomed Life Sci. 2013;925:86-94.
• Fujioka H, Tsunehiro M, Kawaguchi M, Kuramoto Y, Kurosaki H, Hieda Y, Kinoshita-Kikuta E, Kinoshita E, Koike T. Simple enrichment of thiol-containing biomolecules by using zinc(II)-cyclen-functionalized magnetic beads. J Sep Sci. 2014;37(13):1601-9.
• Shami-Shah A, Travis BG, Walt DR. Advances in extracellular vesicle isolation methods: a path towards cell-type specific EV isolation. Extracell Vesicles Circ Nucl Acids. 2023;4(3):447-460.