期刊
NATURE CHEMICAL BIOLOGY
卷 13, 期 7, 页码 697-705出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nchembio.2416
关键词
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资金
- National Science Foundation [CHE-1413666]
- Villum Kann Rasmussen Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1413666] Funding Source: National Science Foundation
The formation of well-defined protein bioconjugates is critical for many studies and technologies in chemical biology. Tried-and-true methods for accomplishing this typically involve the targeting of cysteine residues, but the rapid growth of contemporary bioconjugate applications has required an expanded repertoire of modification techniques. One very powerful set of strategies involves the modification of proteins at their N termini, as these positions are typically solvent exposed and provide chemically distinct sites for many protein targets. Several chemical techniques can be used to modify N-terminal amino acids directly or convert them into unique functional groups for further ligations. A growing number of N-terminus-specific enzymatic ligation strategies have provided additional possibilities. This Perspective provides an overview of N-terminal modification techniques and the chemical rationale governing each. Examples of specific N-terminal protein conjugates are provided, along with their uses in a number of diverse biological applications.
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