Cleavable detergent

Cleavable detergent

Cleavable detergents, also known as cleavable surfactants, are special surfactants (detergents) that are used in biochemistry and especially in proteomics to enhance protein denaturation and solubility. The detergent is rendered inactive by cleavage, usually under acidic conditions, in order to make the sample compatible with a following procedure or in order to selectively remove the cleavage products.

Applications for cleavable detergents include protease digestion of proteins such as in-gel digestion with trypsin after SDS PAGE and peptide extractions from electrophoresis gels. Cleavable detergents are mainly used in sample preparations for mass spectrometry.



PPS, available as PPS Silent Surfactant from Protein Discovery, is the abbreviation for sodium 3-(4-(1,1-bis(hexyloxy)ethyl)pyridinium-1-yl)propane-1-sulfonate. This acetalic detergent is split under acidic conditions into hexanol and the zwitterionic 3-acetyl-1-(3-sulfopropyl)pyridinium.[1][2]

PPA cleavable detergent Hexanol chemical structure.png + 3-acetyl-1-(3-sulfopropyl)pyridinium.png


ProteaseMAX is the brandname of Promega for sodium 3-((1-(furan-2-yl)undecyloxy)carbonylamino)propane-1-sulfonate. This cleavable detergent is sensitive to heat and acid and is degraded during a typical trypsin digestion into the uncharged lipophilic compound 1-(furan-2-yl)undecan-1-ol and the zwitterionic 3-aminopropane-1-sulfonic acid (homotaurine), which can be removed by C18 solid phase extraction during sample work-up.[3][4]

ProteaseMAX cleavable detergent 1-(furan-2-yl)undecan-1-ol.png + Aminopropanesulfonic acid

RapiGest SF

RapiGest SF is an acid-cleavable anionic detergent marketed by Waters Corporation.[5] No information about its chemical structure has been published.


MALDI matrix compounds such as α-cyano-4-hydroxycinnamic acid have been linked through a linker consisting of an unsymmetric formaldehyde acetals to dodecanol. This type of cleavable detergent is inherently compatible with MALDI and does not have to be removed prior to analysis[6]:

Functionalized matrix detergent

UV light- or fluoride-cleavable surfactants have also been developed but are not in current use.[6]

External links


  1. ^ PPS frequently asked questions
  2. ^ Norris JL, Porter NA, Caprioli RM (2003). "Mass spectrometry of intracellular and membrane proteins using cleavable detergents". Anal. Chem. 75 (23): 6642–6647. doi:10.1021/ac034802z. PMID 14640740. 
  3. ^ ProteaseMAX Technical bulletin
  4. ^ Promega Notes 99, 3–7 (2008)
  5. ^ RapiGest SF product page
  6. ^ a b Norris JL, Porter NA, Caprioli RM. (2003). "Combination detergent/MALDI matrix: functional cleavable detergents for mass spectrometry". Anal. Chem. 77 (15): 5036–5040. doi:10.1021/ac050460g. PMID 16053319. 

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Detergent — For the band, see The Detergents. Detergents A detergent is a surfactant or a mixture of surfactants with cleaning properties in dilute solutions. [1] In common usage, detergent refers to alkylbenzenesulfonates, a family of compounds that are… …   Wikipedia

  • Surfactant — Surfactants are wetting agents that lower the surface tension of a liquid, allowing easier spreading, and lower the interfacial tension between two liquids. Etymology The term surfactant is a blend of surface acting agent . Surfactants are… …   Wikipedia

  • PPS (disambiguation) — PPS may refer to:In commerce and industry * Participating preferred stock or participating preferred share * Purchasing Power Standard * Project for Public Spaces, nonprofit organization dedicated to creating and sustaining public places that… …   Wikipedia

  • In-gel digestion — The in gel digestion is part of the sample preparation for the mass spectrometric identification of proteins in course of proteomic analysis. The method was introduced 1992 by Rosenfeld.Rosenfeld, J et al, Anal Biochem , 1992, 203 (1), 173 9.]… …   Wikipedia

  • MRNA display — is a display technique used for in vitro protein, and/or peptide evolution to create molecules that can bind to a desired target. The process results in translated peptides or proteins that are associated with their mRNA progenitor via a… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”