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30-150 μm Agarose Strep-tag Ⅱ Protein Purification Magbeads Kit, 10% Volume Ratio

5 mL / bottle
30-150 μm Agarose Strep-tag Ⅱ Protein Purification Magbeads Kit, 10% Volume Ratio
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Product Name: Agarose Strep-tag Ⅱ Magbeads
Bead Size: 30~150 μm
Concentration: 10% (v/v)
Shelf Life: 2 Years
Usage: Medical Research
Storage: 2~8℃ Sealed Storage
Package: 5mL/50mL/250mL
Application: Protein Purification
Specification: 5 ML, 10 Reactions, 10% (v/v), 30-150 μm
Basic Infomation
Place of Origin: China
Brand Name: BeaverBeads
Certification: COA
Model Number: 70808-K10
Payment & Shipping Terms
Packaging Details: 5mL/50mL/250mL
Delivery Time: 5-8 days
Payment Terms: L/C, T/T
Supply Ability: 850 L/month
Product Description

Agarose Strep-tag Ⅱ Protein Purification Magbeads​ 30-150 μm, 10% (v/v)


1, Description:

Strep-Tag system is a new type of protein purification system which simulates the streptavidin-biotin system. Compared to streptavidin, Strep-Tactin's affinity to Strep-Tag II is at least 10 times larger. The purification extraction condition of strep-tag is mild and the protein can be separated and purified under physiological conditions. In addition, compared to other tags, Strep-Tag II is small 8 amino acid tag (WSHPQFEK). Since the tag is small, it is only about 1 kDa which doesn't affect the structure and function of the protein after fusion. These mild purification condition preserve the biological activity of the protein and produce more than 99% purity in only one extraction step.


BeaverBeadsTM Magrose Strep-Tactin beads are using a special technology to couple the Strep-Tactin protein to the surface of the superparamagnetic magnetic beads. This new type of functionalized material has built an efficient protein purification platform that has possessed the advantage of extraction speed, extraction volume, and purity.


2, Product Information:


Product Name
Agarose Strep Tactin Magbeads
Bead Size
30~150 μm
Ligand density
~6 mg Strep-Tactin / mL Gel
Protein binding Capacity (mg/ml pure beads)
~7 mg Strep-tag protein / mL Gel
Suspension concentration
10%(v/v)magnetic beads suspension
Binding Buffer
50 mM Tris-HCl, pH 8.0
Elution Buffer
2.5 mM desthiobiotin in Binding Buffer
Storage buffer
1×PBS (0.1% Tween-20+0.05% NaN3)
Shelf life
2 years when stores at 2 ~ 8 ℃,
Regeneration Buffer
0.5 M NaOH or 1 mM HABA in Binding Buffer


1:The binding amount of magnetic beads protein is related to the target protein characteristics, where only reference
values are given.
2: In order to facilitate transportation, it is used pure water preservation for shipment. Recommend to store at 20% ethanol
solution for long time preservation.


3, Features:


1. High capability of antibody binding.
2. Time-saving, simple and mild.
3. Obtained high-purity protein by one-Step.
4. No need removing the tag.


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