This package includes 50 nmol of SNAP-Surface Alexa Fluor 647 substrate, sufficient to make 10 ml of a 5 µM SNAP-tag fusion protein labeling solution.The SNAP-tag is a novel tool for protein research, allowing the specific, covalent attachment of virtually any molecule to a protein of interest. The SNAP-tag is based on mammalian O6-alkylguanine-DNA-alkyltransferase (AGT). SNAP-tag substrates are derivatives of benzylguanines and benzylchloropyrimidines. In the labeling reaction, the substituted benzyl group of the substrate is covalently attached to the SNAP-tag.There are two steps to using this system: sub-cloning and expression of the protein of interest as a SNAP-tag fusion, and labeling of the fusion with the SNAP-tag substrate of choice. Expression of SNAP-tag fusion proteins is described in the documentation supplied with SNAP-tag plasmids. The labeling of the fusion proteins with the SNAP-tag substrate is described below.Figure 1: Live U-2 OS cells transiently transfected with pSNAP-ADRβ2Cells were labeled with SNAP-Surface Alexa Fluor 647 (red) for 30 minutes and counterstained with Hoechst 33342 (blue).Figure 2: Excitation (dotted line) and emission (full line) spectra of SNAP-Surface Alexa Fluor® 647 coupled to SNAP-tag in buffer at pH 7.5
This product is related to the following categories:
SNAP-tag Substrates Products ,
Protein Labeling Products
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