ALPHA LABS LIMITED
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​Cytoskeleton, Inc.

 Science in Motion. Excellence in Every Fiber.​

Don’t just study life—capture it in action.
​For the cutting-edge cell biology and drug discovery labs at HKU, CUHK, and Science Park, Cytoskeleton, Inc. is the essential partner for studying the "engines" of the cell. Alpha Labs Limited brings you the industry’s most specialized portfolio of purified proteins, biochemical assays, and the revolutionary Spirochrome live-cell imaging probes.


Whether you are investigating Rho GTPase signaling, microtubule dynamics, or muscle contraction, Cytoskeleton’s kits are engineered for researchers who refuse to settle for subpar activity or "noisy" data. From Actin and Tubulin biochemistry to the high-performance SiR-fluorophores that allow for stunning, low-toxicity live imaging, we provide the tools to visualize the invisible.
​

Core Product Lines & Specialized Applications
​
1. Live Cell Imaging: SiR-Actin & SiR-Tubulin
  • Far-Red Probes: Based on silicon rhodamine (SiR), these fluorogenic, cell-permeable probes allow for low-background imaging without the phototoxicity of traditional dyes.
  • Super-Resolution Compatible: Ideal for STED and SIM microscopy, enabling researchers to visualize the centriole's architecture and peripheral microtubules with unprecedented clarity.
  • Minimal Interference: Unlike GFP-tags, SiR-probes do not interfere with mitotic duration or cell proliferation at imaging concentrations.

2. Small G-Protein Activation Assays (G-LISA®)
  • Advanced ELISA Format: The patented G-LISA® kits replace slow, semi-quantitative pull-down assays. They provide quantitative results for Rho, Rac, and Cdc42 in under 3 hours.
  • High Sensitivity: Requires only 10–50 µg of cell lysate, making it perfect for primary cell cultures and 3D matrix experiments where sample material is limited.
  • Traditional Pull-downs: We also supply the well-established agarose bead-based formats for labs requiring downstream interaction analysis.

3. Purified Proteins & Motor Protein Assays
  • High Purity (>99%): We offer the world’s most cited purified Actin and Tubulin, available in various formats including fluorescent and biotin-labeled versions.
  • Molecular Motors: Active Kinesin, Myosin, and Dynein proteins for ATPase assays and motility studies.
  • Pre-formed Microtubules: Skip the complex preparation with "ready-to-use" taxol-stabilized microtubules, ideal for drug screening and MAP binding studies.
​
4. Signal-Seeker™ PTM Detection
  • PTM Exploration: Specialized kits for detecting endogenous Ubiquitination, Acetylation, and SUMOylation.
  • Superior Sensitivity: Designed to capture the small fraction of proteins modified during rapid signal transduction events without heavy/light chain interference.​
Cytoskeleton, Inc. Official website
Need a quote or a technical protocol for Cytoskeleton Inc.  products? WhatsApp us at +852 9662 0635 for immediate local support."
Superior imaging starts with superior cell health. Before using Spirochrome live-cell probes, ensure your cell lines are thriving on BioLamina’s laminin-rich matrices for the most physiologically relevant results.

F&Q

  • Q: How many times can I use a single vial of SiR-Actin?
    • A: A standard 50 nmol vial typically provides enough for 50 to 200 imaging sessions, depending on your required concentration (usually 50 nM to 1 µM).

  • Q: Is the tubulin in your kits >99% pure?
    • A: Yes. Our TL238 tubulin is >99% pure as determined by SDS-PAGE, ensuring that your polymerization assays are free from contaminating Microtubule-Associated Proteins (MAPs).

  • Q: Can G-LISA® assays be performed on frozen tissue samples?
    • A: Yes, provided the tissue was "snap-frozen" in liquid nitrogen and lysed using our specialized GL07 lysis buffer to preserve the active (GTP-bound) state of the protein.
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Tel                                           2479 2131
Mobile/WhatsApp               9662 0635
WeChat                                 131 4393 6393
Email                                      [email protected]

PARTNERS
Polyplus 
Active Motif
iNtRON Bio
Cytoskeleton, Inc.
Enzo Life Sciences
Major Science
Sartorius ATS
​
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​​TheWell Bio
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FiberCell Systems
HansaBioMed Life Sci
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