Cysteine-specific protein multi-functionalization and disulfide bridging using 3-bromo-5-methylene pyrrolones
نویسندگان
چکیده
منابع مشابه
Aryloxymaleimides for cysteine modification, disulfide bridging and the dual functionalization of disulfide bonds.
Tuning the properties of maleimide reagents holds significant promise in expanding the toolbox of available methods for bioconjugation. Herein we describe aryloxymaleimides which represent 'next generation maleimides' of attenuated reactivity, and demonstrate their ability to enable new methods for protein modification at disulfide bonds.
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The maleimide motif is widely used for the selective chemical modification of cysteine residues in proteins. Despite widespread utilization, there are some potential limitations, including the irreversible nature of the reaction and, hence, the modification and the number of attachment positions. We conceived of a new class of maleimide which would address some of these limitations and provide ...
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The title compound, C(14)H(10)Br(2)N(2)O(2), was synthesized by the reaction of 5-bromo-salicylaldehyde with an equimolar quantity of 3-bromo-benzohydrazide in methanol. The dihedral angle between the two benzene rings is 10.5 (4)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds to form chains parallel to the c axis, and an intra-molecular O-H⋯N int...
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Aggregation of fluorosurfactant-capped gold nanoparticles could be induced selectively by cysteine and homocysteine and, when solution ionic strength was low, the kinetics of homocysteine-induced aggregation of large size nanoparticles (approximately 40 nm) was much faster than that induced by cysteine, leading to specific detection of homocysteine in the presence of excess cysteine.
متن کاملMethyl 5-bromo-2-chloropyridine-3-carboxylate
The title compound, C(7)H(5)BrClNO(2), crystallizes with two independent molecules in the asymmetric unit. In the absence of classical inter-molecular inter-actions, the crystal structure exhibits relatively short inter-molecular Br⋯O distances [3.143 (9) and 3.162 (9)Å].
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2020
ISSN: 2041-1723
DOI: 10.1038/s41467-020-14757-4