The Strep Tactin beads based on superparamagnetic beads are designed for rapid and efficient separation Strep（II）-tag protein. The Strep-tag is a synthetic peptide consisting of eight amino acids (Trp-Ser-His-Pro-Gln-Phe-Glu-Lys). Generally, it does not interfere with folding or bioactivity. Thus, there is no need for removing the tag. Strep-tagged proteins can be isolated in one step from crude cell lysates. Because the Strep-tag elutes under gentle, physiological conditions it is especially suited for generation of functional proteins. The proteins obtained are bioactive and display a very high purity (above 99%).

FEACTURES
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.

SPECIFICATIONS

Designation	Sunlong Biotech™  Magrose Strep-Tactin
Bead Diameter (µm)	30μm～150μm
Ligand density	～6mg Strep-Tactin /mL Gel
Protein Binding Capacity	～7mg Strep-tag II protein/mL Gel
Slurry Concentration	10%(v/v)  Suspension
Storage solution	1×PBS(0.1%Tween-20+0.05%NaN3)
Storage temperature	2 ~ 8 °C for long; NO FREEZE
Binding/Washing Buffer	10mM Tris-HCl, 150mM NaCl, 1mM EDTA, pH8.0
Elution Buffer	2.5mM desthiobiotin in Binding Buffer
Regeneration Buffer	0.5M NaOH or 1mM HABA

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