Cellular Analysis

SNAP Companion

The non-overlapping substrate specificity of SNAP-tag® and CLIP-tag™ enables the orthogonal and complementary labeling of two proteins simultaneously in the same cell. Furthermore, SNAP-tag and CLIP-tag based pulse-chase experiments allow for visualization of different generations of proteins and analysis of protein turnover in living cells (1-3). Additionally, there are a numbers of companion products designed to enable a wide variety of other applications including: Biotin substrates, SDS-PAGE specific SNAP-tag and CLIP-Vista labels, non-fluorescent blocking agents, resin and magnetic beads for pull-down applications, building blocks for the generation of custom substrates, and a SNAP-tag specific purified protein and antibody.

References

  1. Jansen, L. et al (2007) J.Cell. Biol. 176, 795-805. PMID: 17339380
  2. Farr, G.A. (2009) J. Cell. Biol. 186, 269-282. PMID: 19620635
  3. Milenkovic, L. (2010) J. Cell. Biol. 187, 365-374. PMID: 19948480

SNAP-tag® is a registered trademark of New England Biolabs, Inc.
CLIP-tag™ is a trademark of New England Biolabs, inc.

  1. Fluorescent Labeling of COS-7 Expressing SNAP-tag Fusion Proteins for Live Cell Imaging

    Watch as Chris Provost, of New England Biolabs, performs fluorescent imaging of live COS-7 cells expressing SNAP-tag® fusion proteins.

  2. SNAP-tag Overview Tutorial

    View an interactive tutorial explaining the mechanism of our SNAP-tag® technologies and reagents available for researchers wishing to study the function and localization of proteins in live or fixed cells.

Featured Products

FAQs for SNAP Companion

Protocols for SNAP Companion

Legal and Disclaimers

This product is covered by one or more patents, trademarks and/or copyrights owned or controlled by New England Biolabs, Inc (NEB).

While NEB develops and validates its products for various applications, the use of this product may require the buyer to obtain additional third party intellectual property rights for certain applications.

For more information about commercial rights, please contact NEB's Global Business Development team at gbd@neb.com.

This product is intended for research purposes only. This product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

Features

  • Clone and express once, then use with a variety of substrates
  • Non-toxic to living cells
  • Wide selection of fluorescent substrates
  • Highly specific covalent labeling
  • Simultaneous dual labeling

Applications

  • Simultaneous dual protein labeling inside live cells
  • Protein localization and translocation
  • Pulse-chase experiments
  • Receptor internalization studies
  • Selective cell surface labeling
  • Protein pull-down assays
  • Protein detection in SDS-PAGE
  • Flow cytometry
  • High throughput binding assays in microtiter plates
  • Biosensor interaction experiments
  • FRET-based binding assays
  • Single molecule labeling
  • Super-resolution microscopy

Protein labeling with SNAP-tag and CLIP-tag

The SNAP- (gold) or CLIP-tag (purple) is fused to the protein of interest (blue). Labeling occurs through covalent attachment to the tag, releasing either a guanine or a cytosine moiety.

SNAP-tag®, CLIP-tag™ and ACP/MCP-tag Substrate Selection Chart

NEB offers a large selection of fluorescent labels (substrates) for SNAP-, CLIP-, ACP- and MCP-tag fusion proteins.