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2012 Promega catalogue

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Life<br />

Science<br />

Catalog<br />

<strong>2012</strong><br />

Worldwide Contact List<br />

Section<br />

Contents<br />

Table of<br />

Contents<br />

Cell Signaling<br />

248<br />

HaloLink Magnetic Beads<br />

Product Size Cat.# Price ($)<br />

HaloLink Magnetic Beads 40 reactions G9311 169.00<br />

For Research Use Only. Not for Use in Diagnostic Procedures.<br />

Description: HaloLink Magnetic Beads provide a rapid and reliable<br />

method to covalently capture and immobilize HaloTag ® fusion proteins to a<br />

paramagnetic particle. Immobilization through the HaloTag ® Ligand provides<br />

for consistent, surface-directed orientation of the fusion protein, thus providing<br />

more reliable results in applications such as protein:protein interaction studies<br />

with the fusion protein. The result is a paramagnetic bead with very high binding<br />

capacity for HaloTag ® fusion proteins and very low nonspecific protein binding.<br />

The paramagnetic feature allows for streamlined assay development and<br />

facilitates applications with automated assays developed on robotic platforms.<br />

A variety of vectors for the expression of HaloTag ® fusion proteins in bacterial,<br />

mammalian or cell-free systems are available. Please see the HaloTag ®<br />

Technology Products page for more information.<br />

Detection of Protein:<br />

Protein Interactions<br />

HaloTag ®<br />

Fusion Protein<br />

B<br />

Add HaloLink<br />

Magnetic B<br />

Beads<br />

binding<br />

partner<br />

HaloTag ® Fusion<br />

Protein (bait)<br />

Overview of the HaloLink Magnetic Beads immobilization protocol.<br />

B<br />

B<br />

Bind<br />

(protein<br />

immobilization)<br />

Wash<br />

Remove nonspecific<br />

proteins<br />

Potential downstream applications<br />

Detection of<br />

Enzymatic Activity<br />

B<br />

Features:<br />

• Magnetic-Based: Easy and quick immobilization of HaloTag ® fusion<br />

proteins with minimal loss of sample material.<br />

• Covalent Bond: Allows stringent washing of immobilized HaloTag ® fusion<br />

protein, removing nonspecific proteins and enhancing overall data.<br />

• Multiple Applications: Immobilized HaloTag ® fusion proteins can be<br />

used for protein interaction analysis, enzyme assays and purification of<br />

fusion proteins containing a protease cleavage site.<br />

Storage Conditions: Store at 4°C.<br />

Protocol Part#<br />

HaloLink Magnetic Beads Technical Manual TM291<br />

A<br />

B<br />

substrate<br />

product<br />

Purification of<br />

Nontagged Protein<br />

For complete and up-to-date product information visit: www.promega.com/catalog<br />

B<br />

Factor Xa<br />

cleavage<br />

6630MA

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