Journal
CURRENT OPINION IN CHEMICAL BIOLOGY
Volume 9, Issue 1, Pages 56-61Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.cbpa.2004.12.007
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Labeling proteins with fluorophores, affinity labels or other chemically or optically active species is immensely useful for studying protein function in living cells or tissue. The use of genetically encoded green fluorescent protein and its variants has been particularly valuable in this regard. In an effort to increase the diversity of available protein labels, various efforts to append small molecules to selected proteins in vivo have been reported. This review discusses recent advances in selective, in vivo protein labeling based on small molecule ligand-receptor interactions, intein-mediated processes, and enzyme-catalyzed protein modifications.
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