期刊
MOLECULES
卷 27, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/molecules27010015
关键词
crosslink; dimerization; protein oxidation; radicals; di-tyrosine; di-tryptophan; disulfides; thiols; aggregation; proteomics; mass spectrometry
资金
- European Union [890681]
- Novo Nordisk Foundation [NNF13OC0004294, NNF19OC0058493, NNF20SA0064214]
- Carlsberg Foundation [CF19-0451]
- Fondecyt [1180642]
- Marie Curie Actions (MSCA) [890681] Funding Source: Marie Curie Actions (MSCA)
Covalent crosslinks within or between proteins play a critical role in determining their structure and function. Unwanted crosslinks, accumulated in aging and certain diseases, have negative effects on biological function. This article reviews the known spectrum of reducible and non-reducible protein crosslinks, their formation mechanisms, and experimental approaches for their detection and characterization.
Covalent crosslinks within or between proteins play a key role in determining the structure and function of proteins. Some of these are formed intentionally by either enzymatic or molecular reactions and are critical to normal physiological function. Others are generated as a consequence of exposure to oxidants (radicals, excited states or two-electron species) and other endogenous or external stimuli, or as a result of the actions of a number of enzymes (e.g., oxidases and peroxidases). Increasing evidence indicates that the accumulation of unwanted crosslinks, as is seen in ageing and multiple pathologies, has adverse effects on biological function. In this article, we review the spectrum of crosslinks, both reducible and non-reducible, currently known to be formed on proteins; the mechanisms of their formation; and experimental approaches to the detection, identification and characterization of these species.
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