SMCC crosslinker

Description

SMCC is a hetero-bifunctional crosslinker that contain N-hydroxysuccinimide (NHS) ester and maleimide groups that allow covalent conjugation of amine- and sulfhydryl-containing molecules.

Chemical properties

White Crystalline Solid

The Uses of SMCC crosslinker

A sulfhydryl and amino reactive heterobifunctional protein crosslinking reagent. It conjugates anti-digoxin F(ab’)2 fragments to ?-galactosidase. Conjugates hIgG to alkaline phosphatase. Spacer Arm: 11.6 Angstroms

The Uses of SMCC crosslinker

A sulfhydryl and amino reactive heterobifunctional protein crosslinking reagent. It conjugates anti-digoxin F(abTaIII)2 fragments to l-B-galactosidase. Conjugates hIgG to alkaline phosphatase.Spacer Arm: 11.6 Angstroms.

What are the applications of Application

SMCC is a heterobifunctional sulfhydryl- and amine- reactive crosslinker, 11.6 Angstrom spacer arm

Definition

ChEBI: Succinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate is an N-hydroxysuccinimide ester derived from 4-(N-maleimidomethyl)cyclohexane-1-carboxylic acid. It is a member of maleimides and a N-hydroxysuccinimide ester.

General Description

4-(N-Maleimidomethyl)cyclohexanecarboxylic acid N-hydroxysuccinimide ester (SMCC) is a heterobifunctional cross-linking reagent incorporating an extended spacer with amine and sulfhydryl reactivity. It is typically coupled initially to molecules containing primary amine by amide bond buffered at pH 7.5 (6.5-8.5). The second coupling is specific for molecules containing free sulfhydryl by thioether linkage buffered at pH 6.8 (6.5-7.0). SMCC contains nine atom linker. An extended aliphatic spacer stabilizes the maleimide prior to coupling compared to aromatic spacers.

Chemical Reactivity

Succinimidyl-4-(N-maleimidomethyl)cyclohexane-1-carboxylate (SMCC) is a non-cleavable and membrane permeable 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 SMCC and Sulfo-SMCC and are unusually stable up to pH 7.5 because of the cyclohexane bridge in the spacer arm.