2015
DOI: 10.1038/nchem.2393
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Site-selective protein-modification chemistry for basic biology and drug development

Abstract: Nature has produced intricate machinery to covalently diversify the structure of proteins after their synthesis in the ribosome. In an attempt to mimic nature, chemists have developed a large set of reactions that enable post-expression modification of proteins at pre-determined sites. These reactions are now used to selectively install particular modifications on proteins for many biological and therapeutic applications. For example, they provide an opportunity to install post-translational modifications on p… Show more

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Cited by 505 publications
(417 citation statements)
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“…12 To this end, a number of methods have been developed including the selective modification of cysteine residues with electrophiles, 34 the fusion of peptide tags to proteins of interest which can be subsequently chemically or enzymatically modified, 58 and the incorporation of noncanonical amino acids (ncAAs) into proteins through semisynthetic 911 or recombinant methods. 1213 In nature, the thioester group provides a means for selective protein conjugation; examples include protein ubiquitination, 14 intein splicing, 15 and the attachment of complement factors to pathogens.…”
mentioning
confidence: 99%
“…12 To this end, a number of methods have been developed including the selective modification of cysteine residues with electrophiles, 34 the fusion of peptide tags to proteins of interest which can be subsequently chemically or enzymatically modified, 58 and the incorporation of noncanonical amino acids (ncAAs) into proteins through semisynthetic 911 or recombinant methods. 1213 In nature, the thioester group provides a means for selective protein conjugation; examples include protein ubiquitination, 14 intein splicing, 15 and the attachment of complement factors to pathogens.…”
mentioning
confidence: 99%
“…Strategy (ii), i.e., chemical or enzymatic post-modification of native nucleic acids, is an intriguing and useful approach to the construction of chemically caged nucleic acids rapidly and simultaneously without the practical limitations to length associated with strategy (i). However, compared to recent progress in the post-modification of proteins, 18 those of native nucleic acids, without any pre-introduced artificial molecular moieties, is still in its infancy. Classically, chemical postmodification of nucleic acids can be effected by, for example, alkylating reagents 19a19c and diazonium compounds, 19d,19e which predominantly react at the N7-and C8-positions of the guanine base, respectively (Figure 4 (ii,a)).…”
Section: Synthetic Strategies and Their Scope And Limitationsmentioning
confidence: 99%
“…153 Estas proteínas modificadas desempenham funcionalidades químicas em importantes processos celulares, incluindo tráfego vesicular, diferenciação, migração e sinalização. 153,154 Por exemplo, a ligação de carboidratos em proteínas, um processo conhecido como glicosilação, pode melhorar a solubilidade e modular interações ligante-receptor. 154 Através da adição reversível de grupos fosfatos a serinas, treoninas ou resíduos de tirosinas, as enzimas podem permutar entre os estados ativos e inativos.…”
Section: Modificação De Proteínasunclassified
“…154 Coletivamente, estes exemplos destacam como, através da introdução de pequenas modificações, a natureza muitas vezes redesenha a estrutura e função das proteínas para modular a diversidade biológica. 153,154 Com inspiração na natureza, a comunidade científica tem desenvolvido ferramentas para modificar covalentemente proteínas em laboratório, instalando seletivamente diferentes alterações com variadas aplicações. 153 Por exemplo, a circulação de meia-vida de uma proteína pode ser aumentada pela adição de unidades polietilenoglicol (PEG …”
Section: Modificação De Proteínasunclassified
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