DCP-Rho1

DCP-Rho1 is cell permeable and is selectively reactive with sulfenic acids. It can be detected on proteins by fluorescence (see Poole et al., 2007) or in fixed cells by fluorescence imaging (see Klomsiri et al., 2014).

Highlights:

  • Stable, reproducible selective binding to cysteine sulfenic acids (-SOH)
  • Rhodamine group allows for fluorescent detection on proteins or in fixed cells
  • Cell permeable - Great for in vitro and in vivo applications
  • Compatible with confocal and/or fluorescence imaging

Redox-sensitive cysteine residues in proteins may serve as important components of oxidative signaling or sensors of oxidative stress. Cysteine sulfenic acid modification is an emerging area of interest for those studying biological signal transduction within the cell.

Cysteine sulfenic acid formation in proteins results from the oxidative modification of susceptible cysteine residues by mild oxidizing agents such as hydrogen peroxide, alkyl hydroperoxides, and peroxynitrite. These sulfenic acid modified proteins can be identified by their ability to form adducts with dimedone, but this reagent provides no spectral or affinity tag to such adduct to allow for later analysis. DCP-Rho1 can be used to effectively detect the formation of cysteine sulfenic acid in the redox regulation of proteins, and with the presence of a rhodamine moiety, DCP-Rho1 is compatible with several techniques and forms of analysis post-labeling.

From the laboratories of Leslie B. Poole, PhD and S. Bruce King, PhD, Wake Forest School of Medicine.

Catalog Number Product DataSheet Size AVAILABILITY Price Qty
EE0031
DCP-Rho1, 250ug
250ug In stock
Regular Price:$210.00
On Sale:
Specifications

Product Type: Small Molecule
Name: DCP-Rho1
Chemical Formula: C42H51N4O6
Source: Synthetic
Molecular Weight: 743.3 g/mol (DCP-Rho1·HCl)
Format: magenta solid
Purity: 85% by NMR, 15% is unreactive precursor (see reference 1 below)
Solubility: DMSO, ethanol, 50% ethanol (up to 200 mM)
Spectral Information: ?max, Ex=560nm, ?max, Em=581nm Molar extinction coefficient ~70,000 M-1cmin phosphate buffer at pH 7
Storage: -20C for long term storage
Shipped: Ambient temperature

Provider
From the laboratories of Leslie B. Poole, PhD and S. Bruce King, PhD, Wake Forest School of Medicine.
Comments

Unreactive precursor has been tested and shown not to label cells under same conditions as DCP-Rho1, as shown in reference 1 below.

DCP-Rho1 can be detected on proteins by fluorescence (see Poole et al., 2007) or in fixed cells by fluorescence imaging (see Klomsiri et al., 2014).

Use at 5 to 10 micromolar applied to cells growing in wells, volume per sample up to ~0.5 ml (thus 5 nmol or 3.5 microgram per well).

References
  1. Klomsiri, C., Rogers, L.C., Soito, L., McCauley, A.K., King, S.B., Nelson, K.J., Poole, L.B. & Daniel, L.W. Endosomal H2O2 production leads to localized cysteine sulfenic acid formation on proteins during lysophosphatidic acid-mediated cell signaling. Free Radic Biol Med 71C, 49-60 (2014)
  2. Poole, L.B., Klomsiri, C., Knaggs, S.A., Furdui, C.M., Nelson, K.J., Thomas, M.J., Fetrow, J.S., Daniel, L.W. & King, S.B. Fluorescent and affinity-based tools to detect cysteine sulfenic acid formation in proteins. Bioconjug Chem 18, 2004-17 (2007).
  3. Morales Y, Nitzel DV, Price OM, Gui S, Li J, Qu J, Hevel JM. Redox Control of Protein Arginine Methyltransferase 1 (PRMT1) Activity. J Biol Chem. 2015 Jun 12;290(24):14915-26. doi: 10.1074/jbc.M115.651380. PubMed PMID: 25911106; PubMed Central PMCID: PMC4463439. View Article

If you publish research with this product, please let us know so we can cite your paper.

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