PromoFluor Maleimides

PromoFluor Maleimides for labeling thiol groups of proteins.

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Selected product PromoFluor Maleimides

PromoFluor-865, maleimide 1 mg

PromoFluor-865, maleimide 5 mg

PromoFluor-350P, maleimide 1 mg

PromoFluor-350P, maleimide 5 mg

PromoFluor-405, maleimide 1 mg

PromoFluor-405, maleimide 5 mg

PromoFluor-415, maleimide 1 mg

PromoFluor-415, maleimide 5 mg

PromoFluor-488 Premium, maleimide 1 mg

PromoFluor-488 Premium, maleimide 5 mg

PromoFluor-505, maleimide 1 mg

PromoFluor-505, maleimide 5 mg

PromoFluor-532, maleimide 1 mg

PromoFluor-532, maleimide 5 mg

PromoFluor-546, maleimide 1 mg

PromoFluor-546, maleimide 5 mg

PromoFluor-555P, maleimide 1 mg

PromoFluor-555P, maleimide 5 mg

PromoFluor-568, maleimide 1 mg

PromoFluor-568, maleimide 5 mg

PromoFluor-594, maleimide 1 mg

PromoFluor-594, maleimide 5 mg

PromoFluor-633P, maleimide 1 mg

PromoFluor-633P, maleimide 5 mg

PromoFluor-647P, maleimide 1 mg

PromoFluor-647P, maleimide 5 mg

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PromoFluor Maleimides are intended for covalently labeling biomolecules containing a thiol group (e.g. proteins). A neutral thiol-reactive label has little influence on the isoelectric point of a protein. In effect, PromoFluor Maleimides have an advantage over amino group labels because they do not interfere with techniques like differential 2D gel electrophoresis. Since most proteins contain only a few thiol functional groups, thiol-reactive dyes can be used to selectively modify a protein or peptide containing a thiol group at a specific site. Moreover, these dyes are well suited for labelling oligonucleotides. Maleimides couple to thiol groups under very mild conditions at a pH around 7.