Dimethylmaleic anhydride, a specific reagent for protein amino groups.
The reagent dimethylmaleic anhydride does not cause a stable modification of thiol compounds under the conditions used for modification of protein amino groups, in contrast to maleic and monomethylmaleic anhydrides, which produce an irreversible modification of sulfhydryl groups. This behavior and the low reactivity toward hydroxyamino acid residues, shown in a previous work, make dimethylmaleic anhydride a specific reagent for protein amino groups.
de la Escalera
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Centro de Biología Molecular, Consejo Superior de Investigaciones Científicas, Madrid, Spain.
Palacián
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D000596:Amino Acids / Q000378:metabolism*; D003545:Cysteine / Q000378:metabolism; D005663:Furans; D008299:Maleic Anhydrides; D013438:Sulfhydryl Compounds / Q000378:metabolism
D000596:Amino Acids; D005663:Furans; D008299:Maleic Anhydrides; D013438:Sulfhydryl Compounds; C007474:2,3-dimethylmaleic anhydride; D003545:Cysteine