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Sulpho-SMCC (3-Sulpho-N-succinimidyl-4-(N-maleimidomethyl)cyclohexane-1-carboxylate sodium salt), Pierce™
Sulpho-SMCC (3-Sulpho-N-succinimidyl-4-(N-maleimidomethyl)cyclohexane-1-carboxylate sodium salt)
Thermo Scientific Pierce Sulfo-SMCC, No-Weigh Format is a water-soluble, amine-to-sulfhydryl crosslinker that contains NHS-ester and maleimide reactive groups at opposite ends of a medium-length cyclohexane spacer arm (8.3 angstroms).
- Reactive groups: sulfo-NHS ester and maleimide
- Reactive towards: amino and sulfhydryl groups
- Water-soluble (compare to SMCC), so crosslinking can be done in physiologic solutions
- High purity, crystalline reagent can be used to create high-purity maleimide-activated derivatives
- Cyclohexane bridge confers added stability to the maleimide group making Sulfo-SMCC the ideal crosslinking agent for maleimide activation of proteins. Maleimide groups are stable for 64 hours in 0.1 M sodium phosphate buffer, pH 7 at 4°C.
Sulfosuccinimidyl-4-(N-maleimidomethyl)cyclohexane-1-carboxylate (Sulfo-SMCC) is a non-cleavable and membrane impermeable crosslinker. It contains an amine-reactive N-hydroxysuccinimide (NHS ester) and a sulfhydryl-reactive maleimide group. NHS esters react with primary amines at pH 7-9 to form stable amide bonds. Maleimides react with sulfhydryl groups at pH 6.5-7.5 to form stable thioether bonds. The maleimide groups of Sulfo-SMCC and SMCC are unusually stable up to pH 7.5 because of the cyclohexane bridge in the spacer arm. Because it contains the hydrophilic sulfonyl moiety, Sulfo-SMCC is soluble up to ∼10 mM in water and many commonly used buffers, thus avoiding the use of organic solvents which may perturb protein structure.
Attention: For Research Use Only. Not for use in diagnostic procedures.